WO2022002174A1 - 图像传感器、3d摄像头、图像传感器的控制方法 - Google Patents
图像传感器、3d摄像头、图像传感器的控制方法 Download PDFInfo
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- WO2022002174A1 WO2022002174A1 PCT/CN2021/103918 CN2021103918W WO2022002174A1 WO 2022002174 A1 WO2022002174 A1 WO 2022002174A1 CN 2021103918 W CN2021103918 W CN 2021103918W WO 2022002174 A1 WO2022002174 A1 WO 2022002174A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/204—Image signal generators using stereoscopic image cameras
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/95—Computational photography systems, e.g. light-field imaging systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
- H04N25/62—Detection or reduction of noise due to excess charges produced by the exposure, e.g. smear, blooming, ghost image, crosstalk or leakage between pixels
Definitions
- the present application relates to the field of electronic devices, and more particularly, to an image sensor, a 3D camera, and a control method for an image sensor.
- the information of the three-dimensional contour of the object can be obtained by measuring the direct time of flight (DToF) of light from the object to the three-dimension (3D) camera.
- a 3D camera that acquires 3D images through DToF can also be called a DToF camera.
- the present application provides an image sensor, a 3D camera, and a control method for the image sensor, which aims to reduce the crosstalk of optical signals between photosensitive units.
- an image sensor comprising: a plurality of photosensitive units, the plurality of photosensitive units are arranged in the form of an array; a photosensitive driver, the photosensitive driver is configured to: determine from the plurality of photosensitive units a plurality of first-type photosensitive units and/or a plurality of second-type photosensitive units; the load voltage of the first-type photosensitive units is controlled to be the first voltage, and the load voltage of the second-type photosensitive units is controlled to be the second voltage, The first voltage is higher than the working voltage of the photosensitive unit, the second voltage is lower than the working voltage of the photosensitive unit, and the first type of photosensitive unit and the second type of photosensitive unit satisfy any one of the following: On a row, at least one second-type photosensitive unit is spaced between any two adjacent first-type photosensitive units, and in any column, at least one second-type photosensitive unit is spaced between any two adjacent first-type photosensitive units. The second type of photosensitive units, and on any diagonal line, at least one
- the image sensor may be an image sensor in the 3D lens.
- an image sensor may refer to a receiver for detecting (or capturing, receiving) light.
- the optical signal crosstalk between the photosensitive units by reducing the optical signals from adjacent photosensitive units, it is beneficial to reduce the optical signal crosstalk between the photosensitive units.
- the spacing between adjacent photosensitive units can be reduced, which is beneficial to obtain high-resolution images.
- the photosensitive unit includes a first input end and a second input end;
- the photosensitive driver includes a first driving connection end, a second driving connection end, a third a drive connection end, the voltage difference between the first drive connection end and the second drive connection end is the first voltage, and the voltage difference between the first drive connection end and the third drive connection end is the second drive connection end voltage;
- the image sensor further includes a first electrical connection end conversion device, the first electrical connection end conversion device includes a first electrical connection end, a second electrical connection end, and a third electrical connection end, the first electrical connection end
- the terminal conversion device is used for switching between the conduction between the first electrical connection terminal and the second electrical connection terminal, and the conduction between the first electrical connection terminal and the third electrical connection terminal;
- the photosensitive unit passes through the first input terminal is electrically connected to the first drive connection terminal of the photosensitive driver, the photosensitive unit is electrically connected to the first electrical connection terminal of the first electrical connection terminal conversion device through the second input terminal,
- the first electrical connection terminal conversion device is used for
- the third driving connection end of the photosensitive driver is electrically connected; the control of the load voltage of the first type of photosensitive units to be the first voltage, and the control of the load voltage of the second type of photosensitive units to be the second voltage, includes: controlling the The first electrical connection terminal conversion device switches the electrical connection terminal that is conductive with the first electrical connection terminal, so that in the case that the photosensitive unit belongs to the first type of photosensitive unit, the first electrical connection terminal is connected to the first type of photosensitive unit.
- the second electrical connection terminal is turned on, and the first electrical connection terminal is disconnected from the third electrical connection terminal.
- the first The electrical connection end is connected with the third electrical connection end, and the first electrical connection end is disconnected from the second electrical connection end.
- the first electrical connection terminal conversion device is configured to conduct conduction between the first electrical connection terminal and the second electrical connection terminal, and the first electrical connection terminal and the third electrical connection terminal to conduct electricity. Switching between the two electrical connections may mean that when one of the second electrical connection end and the third electrical connection end is connected to the first electrical connection end, the other electrical connection end is connected to the first electrical connection end. The first electrical connection end is disconnected.
- the voltage value of the first driving connection terminal may be V0
- the voltage value of the second driving connection terminal may be V1
- the voltage value of the third driving connection terminal may be V2. Therefore, the first voltage may be
- , and the second voltage may be
- the working voltage of the photosensitive unit may be V3.
- the photosensitive unit is electrically connected to the corresponding electrical connection terminal conversion device, and the electrical connection terminal conversion device can switch the electrical connection path, so that the load voltage of the photosensitive unit can be changed or adjusted.
- each photosensitive unit may correspond to a unique electrical connection terminal conversion device, so the adjustment of the load voltage of the photosensitive unit may be relatively flexible.
- the plurality of photosensitive units include a plurality of first photosensitive units and a plurality of second photosensitive units, and the first photosensitive units include a third input end, a first photosensitive unit Four input ends;
- the second photosensitive unit includes a fifth input end and a sixth input end;
- the photosensitive driver includes a fourth drive connection end and a fifth drive connection end, the fourth drive connection end and the fifth drive connection end
- the voltage difference between the driving connection terminals is the first voltage;
- the image sensor further includes a second electrical connection terminal conversion device, and the second electrical connection terminal conversion device includes a fourth electrical connection terminal, a fifth electrical connection terminal, a sixth electrical connection terminal an electrical connection end, the second electrical connection end conversion device is used for conducting the fourth electrical connecting end with the sixth electrical connecting end, and the fifth electrical connecting end and the sixth electrical connecting end
- the first photosensitive unit is electrically connected to the fourth driving connection end of the photosensitive driver through the third input end, and the first photosensitive unit is connected to the second photosensitive unit through the fourth
- the second electrical connection terminal conversion device is configured to conduct conduction between the fourth electrical connection terminal and the sixth electrical connection terminal, and the fifth electrical connection terminal and the sixth electrical connection terminal to conduct electricity.
- Switching between the electrical connections can mean that when one of the fourth electrical connection end and the fifth electrical connection end is connected to the sixth electrical connection end, the other electrical connection end is connected to the sixth electrical connection end. The sixth electrical connection end is disconnected.
- the voltage value of the fourth driving connection terminal may be V0, and the voltage value of the fifth driving connection terminal may be V1.
- the working voltage of the photosensitive unit may be V3. Therefore, the first voltage can be
- different types of photosensitive cells can be electrically connected with different electrical connection terminals of the electrical connection terminal conversion device, and the electrical connection terminal conversion device can switch the electrical connection paths, so that the load voltage of the photosensitive cells can be changed or adjusted.
- a plurality of photosensitive units can be electrically connected to the same electrical connection end conversion device, so the load voltage of the photosensitive units can be adjusted through a relatively small number of electrical connection end conversion devices.
- the photosensitive driver is further configured to determine a plurality of first-type photosensitive units and/or a plurality of second photosensitive units from the plurality of photosensitive units Before the photosensitive unit, determine the photosensitive unit in the first photosensitive area and/or the photosensitive unit in the second photosensitive area, and the first photosensitive area and the second photosensitive area are two parts of the image sensor that are not connected to each other.
- the photosensitive area is located in the first photosensitive area; the photosensitive driver is also used to control the photosensitive units in the first photosensitive area to be electrically connected to the photosensitive driver, and cut off the photosensitive driver. Electrical connection between the photosensitive unit in the second photosensitive area and the photosensitive driver.
- the image sensor further includes: a third electrical connection terminal conversion device, and the third electrical connection terminal conversion device includes a seventh electrical connection terminal, an eighth electrical connection terminal an electrical connection end and a ninth electrical connection end, the third electrical connection end conversion device is used for conducting conduction between the eighth electrical connection end and the seventh electrical connection end, and the ninth electrical connection end and the The seventh electrical connection terminal is switched between conduction, the third electrical connection terminal conversion device is electrically connected to the photosensitive driver through the seventh electrical connection terminal, and the third electrical connection terminal conversion device is connected through the eighth electrical connection terminal.
- the third electrical connection terminal conversion device includes a seventh electrical connection terminal, an eighth electrical connection terminal an electrical connection end and a ninth electrical connection end, the third electrical connection end conversion device is used for conducting conduction between the eighth electrical connection end and the seventh electrical connection end, and the ninth electrical connection end and the The seventh electrical connection terminal is switched between conduction, the third electrical connection terminal conversion device is electrically connected to the photosensitive driver through the seventh electrical connection terminal, and the third electrical connection terminal conversion device is connected through the eighth electrical connection terminal.
- the electrical connection terminal is electrically connected to the photosensitive unit in the first photosensitive area, and the third electrical connection terminal conversion device is electrically connected to the photosensitive unit in the second photosensitive area through the ninth electrical connection terminal;
- the Controlling the photosensitive unit in the first photosensitive area to be electrically connected to the photosensitive driver, and cutting off the electrical connection between the photosensitive unit in the second photosensitive area and the photosensitive driver includes: controlling the third electrical connection The terminal switching device switches the electrical connection terminal that is connected to the seventh electrical connection terminal, so that the seventh electrical connection terminal is connected to the eighth electrical connection terminal, and the seventh electrical connection terminal is connected to the ninth electrical connection terminal. The electrical connection is disconnected.
- the third electrical connection terminal conversion device is configured to conduct conduction between the eighth electrical connection terminal and the seventh electrical connection terminal, and the ninth electrical connection terminal and the seventh electrical connection terminal to conduct electricity.
- Switching between the electrical connections can mean that in the case where one of the eighth electrical connection end and the ninth electrical connection end is connected to the seventh electrical connection end, the other electrical connection end is connected to the seventh electrical connection end. The seventh electrical connection end is disconnected.
- different photosensitive regions can correspond to different electrical connection ends of the electrical connection end conversion device, and the electrical connection end conversion device can switch the electrical connection paths, so that the photosensitive cells in the photosensitive region can be flexibly driven or turned off.
- a plurality of photosensitive regions may be electrically connected to the same electrical connection end conversion device, so that the sub-regional driving of all photosensitive units can be realized through a relatively small number of electrical connection end conversion devices.
- the electrical connection terminal conversion device is a metal oxide semiconductor field effect (metal oxide semiconductor, MOS) transistor.
- MOS metal oxide semiconductor field effect
- a 3D camera including: a lens, where the lens includes the image sensor described in any possible implementation manner of the first aspect; a light-emitting component, where light emitted by the light-emitting component is photographed The object is reflected and incident on the image sensor, and the flight time of light from the light-emitting component to the image sensor is used to generate a 3D image of the subject.
- the 3D camera may be a DToF camera.
- 3D cameras can be used for face recognition, gesture recognition, 3D modeling and other operations.
- the light-emitting component may be an emitter for light-emitting.
- the distance between adjacent photosensitive units can be reduced, which is beneficial to improve the shooting resolution of 3D images.
- the photosensitive driver is further configured to determine, from the plurality of photosensitive units, a plurality of first-type photosensitive units and/or a plurality of second photosensitive units Before the photosensitive unit, determine the photosensitive unit in the first photosensitive area and/or the photosensitive unit in the second photosensitive area, and the first photosensitive area and the second photosensitive area are two parts of the image sensor that are not connected to each other.
- the photosensitive area is located in the first photosensitive area; the photosensitive driver is also used to control the photosensitive units in the first photosensitive area to be electrically connected to the photosensitive driver, and cut off the photosensitive driver.
- the electrical connection between the photosensitive unit in the second photosensitive area and the photosensitive driver; the light-emitting component includes: a plurality of light-emitting units; A light-emitting unit and/or a light-emitting unit in a second light-emitting area, the first light-emitting area corresponds to the first light-emitting area, and the second light-emitting area corresponds to the second light-emitting area; the light-emitting driver also uses In the case where the photosensitive unit in the first photosensitive area is electrically connected to the photosensitive driver, and the photosensitive unit in the second photosensitive area is disconnected from the photosensitive driver, the first light-emitting area is controlled The light-emitting unit inside is electrically connected with the light-emitting driver, and the electrical connection between the light-emitting unit in the second light-emitting area and the light-emitting driver is cut off.
- the light-emitting component further includes: a fourth electrical connection terminal conversion device, the fourth electrical connection terminal conversion device includes a tenth electrical connection terminal, a tenth electrical connection terminal An electrical connection terminal and a twelfth electrical connection terminal, the fourth electrical connection terminal conversion device is used for conducting conduction with the tenth electrical connection terminal at the eleventh electrical connection terminal, and the twelfth electrical connection terminal is electrically connected
- the fourth electrical connection terminal is electrically connected to the light-emitting driver through the tenth electrical connection terminal
- the fourth electrical connection terminal converter is electrically connected to the light-emitting driver through the tenth electrical connection terminal.
- the eleventh electrical connection terminal is electrically connected to the light emitting unit in the first light emitting area, and the fourth electrical connection terminal converter is connected to the light emitting unit in the second light emitting area through the twelfth electrical connection terminal the unit is electrically connected;
- the controlling the electrical connection between the light-emitting unit in the first light-emitting area and the light-emitting driver, and cutting off the electrical connection between the light-emitting unit in the second light-emitting area and the light-emitting driver includes: controlling The fourth electrical connection terminal switching device switches the electrical connection terminal that is connected to the tenth electrical connection terminal, so that the tenth electrical connection terminal is connected to the eleventh electrical connection terminal, and the tenth electrical connection terminal is connected to the eleventh electrical connection terminal. The connection end is disconnected from the twelfth electrical connection end.
- the fourth electrical connection terminal conversion device is configured to conduct electrical connection between the eleventh electrical connection terminal and the tenth electrical connection terminal, and the twelfth electrical connection terminal and the tenth electrical connection terminal. Switching between the terminals being turned on may mean that in the case where one of the eleventh electrical connection terminal and the twelfth electrical connection terminal is connected to the tenth electrical connection terminal, the other The electrical connection end is disconnected from the tenth electrical connection end.
- different light emitting regions may correspond to different electrical connection ends of the electrical connection end conversion device, and the electrical connection end conversion device can switch electrical connection paths, so that the light emitting units in the light emitting region can be flexibly driven or turned off.
- a plurality of light-emitting regions may be electrically connected to the same electrical connection terminal conversion device, so that the sub-regional driving of all light-emitting units may be realized through a relatively small number of electrical connection terminal conversion devices.
- an electronic device including the image sensor described in any possible implementation manner of the foregoing first aspect.
- an electronic device including the 3D camera described in any possible implementation manner of the second aspect above; and a processor for controlling the 3D camera to capture a 3D image.
- a method for controlling an image sensor includes a plurality of photosensitive units arranged in an array, and the method includes: determining a plurality of first-type photosensitive units and /or multiple second-type photosensitive units; the load voltage of the first-type photosensitive units is controlled to be a first voltage, and the load voltage of the second-type photosensitive units is controlled to be a second voltage, and the first voltage is higher than the The working voltage of the photosensitive unit, the second voltage is lower than the working voltage of the photosensitive unit, the first type of photosensitive unit and the second type of photosensitive unit satisfy any one of the following: on any row, any two adjacent At least one photosensitive unit of the second type is spaced between the photosensitive units of the first type, and in any column, there is at least one photosensitive unit of the second type spaced between any two adjacent photosensitive units of the first type, and On any diagonal line, at least one photosensitive unit of the second type is spaced between any two adjacent photosensitive units of the first type.
- the photosensitive unit includes a first input end and a second input end;
- the photosensitive driver includes a first driving connection end, a second driving connection end, a third a drive connection end, the voltage difference between the first drive connection end and the second drive connection end is the first voltage, and the voltage difference between the first drive connection end and the third drive connection end is the second drive connection end voltage;
- the image sensor further includes a first electrical connection end conversion device, the first electrical connection end conversion device includes a first electrical connection end, a second electrical connection end, and a third electrical connection end, the first electrical connection end
- the terminal conversion device is used for switching between the conduction between the first electrical connection terminal and the second electrical connection terminal, and the conduction between the first electrical connection terminal and the third electrical connection terminal;
- the photosensitive unit passes through the first input terminal is electrically connected to the first drive connection terminal of the photosensitive driver, the photosensitive unit is electrically connected to the first electrical connection terminal of the first electrical connection terminal conversion device through the second input terminal,
- the first electrical connection terminal terminal conversion device is used
- the third driving connection end of the photosensitive driver is electrically connected; the control of the load voltage of the first type of photosensitive units to be the first voltage, and the control of the load voltage of the second type of photosensitive units to be the second voltage, includes: controlling the The first electrical connection terminal conversion device switches the electrical connection terminal that is conductive with the first electrical connection terminal, so that in the case that the photosensitive unit belongs to the first type of photosensitive unit, the first electrical connection terminal is connected to the first type of photosensitive unit.
- the second electrical connection terminal is turned on, and the first electrical connection terminal is disconnected from the third electrical connection terminal.
- the first The electrical connection end is connected with the third electrical connection end, and the first electrical connection end is disconnected from the second electrical connection end.
- the plurality of photosensitive units include a plurality of first photosensitive units and a plurality of second photosensitive units, the first photosensitive units include a third input end, a first photosensitive unit Four input ends; the second photosensitive unit includes a fifth input end and a sixth input end; the photosensitive driver includes a fourth drive connection end and a fifth drive connection end, the fourth drive connection end and the fifth drive connection end
- the voltage difference between the driving connection terminals is the first voltage;
- the image sensor further includes a second electrical connection terminal conversion device, and the second electrical connection terminal conversion device includes a fourth electrical connection terminal, a fifth electrical connection terminal, a sixth electrical connection terminal an electrical connection end, the second electrical connection end conversion device is used for conducting the fourth electrical connecting end with the sixth electrical connecting end, and the fifth electrical connecting end and the sixth electrical connecting end
- the first photosensitive unit is electrically connected to the fourth driving connection end of the photosensitive driver through the third input end, and the first photosensitive unit is connected to the second photosensitive unit through the fourth input
- the method before the determining a plurality of first-type photosensitive units and/or a plurality of second-type photosensitive units from the plurality of photosensitive units, the method It also includes: determining a photosensitive unit in a first photosensitive area and/or a photosensitive unit in a second photosensitive area, where the first photosensitive area and the second photosensitive area are two non-connected photosensitive units of the image sensor. area, the plurality of photosensitive units are all located in the first photosensitive area; control the photosensitive units in the first photosensitive area to be electrically connected to the photosensitive driver, and cut off the photosensitive units in the second photosensitive area from all the electrical connection between the photosensitive drivers.
- the image sensor further includes: a third electrical connection terminal conversion device, the third electrical connection terminal conversion device includes a seventh electrical connection terminal, an eighth electrical connection terminal an electrical connection end and a ninth electrical connection end, the third electrical connection end conversion device is used for conducting conduction between the eighth electrical connection end and the seventh electrical connection end, and the ninth electrical connection end and the The seventh electrical connection terminal is switched between conduction, the third electrical connection terminal conversion device is electrically connected to the photosensitive driver through the seventh electrical connection terminal, and the third electrical connection terminal conversion device is connected through the eighth electrical connection terminal.
- the third electrical connection terminal conversion device includes a seventh electrical connection terminal, an eighth electrical connection terminal an electrical connection end and a ninth electrical connection end, the third electrical connection end conversion device is used for conducting conduction between the eighth electrical connection end and the seventh electrical connection end, and the ninth electrical connection end and the The seventh electrical connection terminal is switched between conduction, the third electrical connection terminal conversion device is electrically connected to the photosensitive driver through the seventh electrical connection terminal, and the third electrical connection terminal conversion device is connected through the eighth electrical connection terminal.
- the electrical connection terminal is electrically connected to the photosensitive unit in the first photosensitive area, and the third electrical connection terminal conversion device is electrically connected to the photosensitive unit in the second photosensitive area through the ninth electrical connection terminal;
- the Controlling the photosensitive unit in the first photosensitive area to be electrically connected to the photosensitive driver, and cutting off the electrical connection between the photosensitive unit in the second photosensitive area and the photosensitive driver includes: controlling the third electrical connection The terminal switching device switches the electrical connection terminal that is connected to the seventh electrical connection terminal, so that the seventh electrical connection terminal is connected to the eighth electrical connection terminal, and the seventh electrical connection terminal is connected to the ninth electrical connection terminal. The electrical connection is disconnected.
- the method is applied to a 3D camera, the 3D camera includes a light-emitting component, and the light-emitting component includes a plurality of light-emitting units, and in the control of the first The photosensitive unit in the photosensitive area is electrically connected to the photosensitive driver, and before the electrical connection between the photosensitive unit in the second photosensitive area and the photosensitive driver is cut off, the method further includes: removing from the plurality of light-emitting units Determine the light-emitting unit in the first light-emitting area and/or the light-emitting unit in the second light-emitting area, the first light-emitting area corresponds to the first light-emitting area, the second light-emitting area and the second light-emitting area Corresponding; the controlling the electrical connection between the photosensitive unit in the first photosensitive area and the photosensitive driver, and cutting off the electrical connection between the photosensitive unit in the second photosensitive area and the photosensitive driver, includes
- the light-emitting component further includes: a fourth electrical connection terminal conversion device, the fourth electrical connection terminal conversion device includes a tenth electrical connection terminal, a tenth electrical connection terminal An electrical connection end, a twelfth electrical connection end, and the eleventh electrical connection end, in the case that one of the twelfth electrical connection ends is connected to the tenth electrical connection end, The other electrical connection end is disconnected from the tenth electrical connection end, the fourth electrical connection end conversion device is electrically connected to the light-emitting driver through the tenth electrical connection end, and the fourth electrical connection end converter
- the eleventh electrical connection terminal is electrically connected to the light emitting unit in the first light emitting area
- the fourth electrical connection terminal converter is electrically connected to the light emitting unit in the second light emitting area through the twelfth electrical connection terminal.
- the light emitting unit is electrically connected; the controlling the electrical connection between the light emitting unit in the first light emitting area and the light emitting driver, and cutting off the electrical connection between the light emitting unit in the second light emitting area and the light emitting driver, includes: controlling the fourth electrical connection terminal conversion device to switch the electrical connection terminal that is connected to the tenth electrical connection terminal, so that the tenth electrical connection terminal is connected to the eleventh electrical connection terminal, and the tenth electrical connection terminal is connected to the eleventh electrical connection terminal.
- the electrical connection end is disconnected from the twelfth electrical connection end.
- the method is performed by a photosensitive driver in the image sensor, or performed by a processor in an electronic device, and the image sensor is provided in the electronic device Inside.
- the method further includes: generating a 3D image according to a signal detected by the first type of photosensitive unit.
- an image processor comprising: a plurality of photosensitive units, the plurality of photosensitive units including a plurality of first-type photosensitive units and a plurality of second-type photosensitive units, the plurality of first-type photosensitive units
- the unit and the plurality of second-type photosensitive units are arranged in the form of an array to form a photosensitive unit array with M1 rows and M2 columns, where M1 and M2 are both integers greater than 1, wherein the plurality of first-type photosensitive units
- the unit and the plurality of second-type photosensitive units satisfy any one of the following: on any row, at least one second-type photosensitive unit is spaced between any two adjacent first-type photosensitive units, and on any column, At least one of the second type of photosensitive units is spaced between any two adjacent first-type photosensitive units, and on any diagonal line, at least one of the second-type photosensitive units is spaced between any two adjacent first-type photosensitive units.
- the second type of photosensitive unit the two input ends of the first type of photosensitive unit are respectively electrically connected to the first drive connection end and the second drive connection end, and the voltage of the first drive connection end is the first voltage, so
- the voltage value of the second driving connection terminal is the second voltage
- the voltage difference between the first voltage and the second voltage is higher than the working voltage of the photosensitive unit
- the two input terminals of the second type photosensitive unit are respectively It is electrically connected to the third drive connection end and the fourth drive connection end
- the voltage value of the third drive connection end is the third voltage
- the voltage value of the fourth drive connection end is the fourth voltage
- the third voltage is the same as the The voltage difference of the fourth voltage is lower than the working voltage of the photosensitive unit.
- the first driving connection terminal and the third driving connection terminal are the same driving connection terminal, and the first voltage is the same as the third voltage .
- the plurality of photosensitive units include a target photosensitive unit, and the target photosensitive unit includes a first input end and a second input end, the first input end and The first drive connection terminal is electrically connected;
- the image sensor further includes: a first electrical connection terminal conversion device, one end of the first electrical connection terminal conversion device is electrically connected to the second input terminal, the first electrical connection terminal conversion device is electrically connected. The other end of the electrical connection terminal conversion device is electrically connected to the second driving connection terminal or the fourth driving connection terminal.
- the first electrical connection terminal The conversion device is electrically connected to the second driving connection end, and in the case that the target photosensitive unit is the second type of photosensitive unit, the conversion device of the first electrical connection end is electrically connected to the fourth driving connection end.
- the image sensor includes: a target photosensitive driving circuit, the target photosensitive driving circuit is a driving circuit of the plurality of photosensitive units; a photosensitive driver, the photosensitive driver The driver is the driving power supply of the plurality of photosensitive units; the second electrical connection terminal conversion device, one end of the second electrical connection terminal conversion device is electrically connected to the target photosensitive driving circuit, and the second electrical connection terminal is converted The other end of the device is electrically connected to the photosensitive driver or is in a disconnected state.
- the photosensitive driver drives the plurality of photosensitive units through the target photosensitive driving circuit;
- the electrical connection terminal conversion device is in a disconnected state, the plurality of photosensitive units are in a non-driven state.
- the electrical connection terminal conversion device is a metal-oxide-semiconductor field-effect MOS transistor.
- a 3D camera including: a lens, the lens includes an image sensor, the image sensor includes a target photosensitive driving circuit, a photosensitive driver, and a second electrical connection terminal conversion device, and the target photosensitive driving circuit is The driving circuit of the plurality of photosensitive units, the photosensitive driver is the driving power source of the plurality of photosensitive units, one end of the second electrical connection terminal converter device is electrically connected to the target photosensitive driving circuit, the first The other end of the converter device with two electrical connection terminals is electrically connected to the photosensitive driver or is in a disconnected state; a light-emitting component, the light emitted by the light-emitting component is reflected by the object and then incident on the image sensor, and the light is emitted from the The time of flight from the light-emitting component to the image sensor is used to generate a 3D image of the subject, and the light-emitting component includes a plurality of light-emitting units, a target photosensitive driving circuit, a light-e
- FIG. 1 is a schematic structural diagram of an electronic device.
- FIG. 2 is a schematic diagram of an application scenario of a 3D camera.
- FIG. 3 is a schematic diagram of synthesizing a 2D image and a 3D image.
- FIG. 4 is a schematic diagram of another application scenario of a 3D camera.
- FIG. 5 is a schematic diagram of another application scenario of a 3D camera.
- FIG. 6 is a schematic diagram of another application scenario of a 3D camera.
- FIG. 7 is a schematic structural diagram of a 3D lens.
- FIG. 8 is a schematic structural diagram of an image sensor.
- FIG. 9 is a schematic structural diagram of a driving circuit.
- FIG. 10 is a photosensitive principle diagram of a photosensitive unit.
- FIG. 11 is a schematic structural diagram of a plurality of photosensitive units.
- FIG. 12 is a schematic structural diagram of an image processor provided by an embodiment of the present application.
- FIG. 13 is a schematic structural diagram of an image processor provided by an embodiment of the present application.
- FIG. 14 is a schematic structural diagram of a driving circuit provided by an embodiment of the present application.
- FIG. 15 is a schematic structural diagram of another driving circuit provided by an embodiment of the present application.
- FIG. 16 is a schematic structural diagram of a batch-driven photosensitive unit provided by an embodiment of the present application.
- FIG. 17 is a schematic structural diagram of another batch-driven photosensitive unit provided by an embodiment of the present application.
- FIG. 18 is a schematic structural diagram of a control circuit of an image sensor and a light-emitting component provided by an embodiment of the present application.
- FIG. 19 is a schematic structural diagram of another control circuit of an image sensor and a light-emitting component provided by an embodiment of the present application.
- FIG. 20 is a schematic structural diagram of a photosensitive region provided by an embodiment of the present application.
- FIG. 21 is a schematic diagram of a method for driving a photosensitive unit provided by an embodiment of the present application.
- FIG. 22 is a schematic structural diagram of a photosensitive region provided by an embodiment of the present application.
- FIG. 23 is a schematic diagram of a method for driving a photosensitive unit provided by an embodiment of the present application.
- FIG. 24 is a schematic structural diagram of a photosensitive region provided by an embodiment of the present application.
- FIG. 25 is a schematic diagram of a method for driving a photosensitive unit provided by an embodiment of the present application.
- FIG. 26 is a schematic flowchart of a method for controlling an image sensor provided by an embodiment of the present application.
- FIG. 1 shows a schematic structural diagram of an electronic device 100 .
- the electronic device 100 may be an electronic device having a camera or photographing function, such as a mobile phone, a tablet computer, a TV (or a smart screen), a laptop computer, a video camera, a video recorder, a camera, and the like.
- a camera or photographing function such as a mobile phone, a tablet computer, a TV (or a smart screen), a laptop computer, a video camera, a video recorder, a camera, and the like.
- a mobile phone such as a mobile phone, a tablet computer, a TV (or a smart screen), a laptop computer, a video camera, a video recorder, a camera, and the like.
- a camera or photographing function such as a mobile phone, a tablet computer, a TV (or a smart screen), a laptop computer, a video camera, a video recorder, a camera, and the like.
- the embodiments of the present application are
- the electronic device 100 may include a display screen 10 and a housing.
- the case may include a bezel and a back cover 20 .
- the frame may surround the outer circumference of the display screen 10 , and the frame may surround the outer circumference of the back cover 20 .
- a certain interval may exist between the display screen 10 and the back cover 20 .
- the display screen 10 may be arranged in parallel with respect to the back cover 20 .
- a front camera module (camera compact module, CCM) 110 may be provided on the display screen 10 of the electronic device 100 . As shown in the left figure in FIG. 1 , the front camera module 110 may be installed on the upper left of the display screen 10 . The front camera module 110 can be used for taking selfies, for example.
- a rear camera module 120 may be provided on the back cover 20 of the electronic device 100 . As shown in the right figure in FIG. 1 , the rear camera module 120 may be installed on the upper left of the back cover 20 . For example, the rear camera module 120 can be used to capture the scene around the electronic device 100 .
- the installation positions of the front camera module 110 and the rear camera module 120 shown in FIG. 1 are only schematic, and the application does not limit the installation positions of the camera modules.
- the front camera module 110 and the rear camera module 120 may also be installed at other positions on the electronic device 100 .
- the front camera module 110 may be installed in the upper middle or upper right of the display screen 10 .
- the rear camera module 120 may be installed on the upper middle or upper right of the back cover 20 .
- the front camera module 110 or the rear camera module 120 may be disposed on a movable part in the electronic device 100. By moving the movable part, the movable part can be hidden within the electronic device 100 or can be protruded out of the electronic device 100 .
- the installation numbers of the front camera module 110 and the rear camera module 120 shown in FIG. 1 are only schematic, and the application does not limit the installation number of the camera modules.
- the electronic device 100 may include a larger or smaller number of camera modules.
- the following takes the rear camera module 120 in FIG. 1 as an example, and describes an application scenario of the camera module provided by the embodiment of the present application with reference to FIG. 2 .
- the rear camera module 120 may include, for example, a main two-dimensional (two dimensions, 2D) camera 121 and a secondary 2D camera 122 .
- Both the main 2D camera 121 and the auxiliary 2D camera 122 can be used to capture 2D image information such as the 2D outline, 2D pattern, color (and then grayscale, color, etc.) of the subject 30 to obtain a 2D image of the subject 30 (as shown in the figure). 31 of 3).
- the combined use of the main 2D camera 121 and the auxiliary 2D camera 122 is beneficial to obtain high-resolution and high-quality 2D images.
- the rear camera module 120 may further include a first light-emitting component 124 .
- the first light emitting part 124 may be located near the main 2D camera 121 or the auxiliary 2D camera 122 .
- the first light emitting part 124 may emit visible light, for example.
- the first light emitting part 124 may provide illumination for the main 2D camera 121 and/or the auxiliary 2D camera 122 .
- the light emitted by the first light-emitting component 124 may be irradiated on the subject 30, thereby increasing the amount of light captured by the main 2D camera 121 and/or the auxiliary 2D camera 122 from the subject 30. the light intensity of the subject 30 .
- the rear camera module 120 may further include a 3D camera 123 .
- the 3D camera 123 may be used to photograph the 3D outline of the subject 30 to obtain a 3D image of the subject 30 (as shown by 32 in FIG. 3 ). Show).
- the 3D camera 123 may include a 3D lens 1231 and a second light emitting part 1232 .
- the second light emitting part 1232 may be located near the 3D lens 1231, for example.
- the second light emitting part 1232 may emit infrared light, for example.
- the light emitting component may be an emitter for emitting light; the image sensor within the lens may be a receiver for detecting (or capturing, receiving) light.
- the distances from different positions of the subject 30 to the 3D lens 1231 may be different, and the flight times of light from different positions of the subject 30 to the 3D lens 1231 may be different. Therefore, in one example, by measuring the direct time of flight (DToF) of light from the subject 30 to the 3D lens 1231, the 3D contour information (or depth information) of the subject 30 can be obtained.
- DoF direct time of flight
- the second light emitting part 1232 is used in conjunction with the 3D lens 1231 to measure the DToF of light between the electronic device 100 and the subject 30 .
- the light emitted by the second light-emitting component 1232 may be reflected by the subject 30 and then enter the 3D lens 1231 .
- the distance between the second light-emitting component 1232 and the 3D lens 1231 is the distance A
- the distance between the second light-emitting component 1232 and the subject 30 is the distance B
- the distance between the subject 30 and the 3D lens 1231 is distance C.
- the distance A can be much smaller than the distance B and the distance C, that is, the distance A can be ignored relative to the distance B and the distance C. That is, B ⁇ C.
- the DToF of the light from the object 30 to the 3D lens 1231 can be approximately determined by measuring the DToF of the light emitted from the second light-emitting component 1232 to the 3D lens 1231 , and then the 3D contour information including the object 30 can be obtained. 3D image.
- the structures illustrated in the embodiments of the present application do not constitute a specific limitation on the electronic device 100 .
- the electronic device 100 may include more or less components than shown.
- electronic device 100 may include more or fewer cameras than shown.
- the electronic device 100 may include more or fewer light emitting components than shown.
- the rear camera module 120 may only include a 3D camera 123, wherein the 3D camera 123 may also have the capability of capturing 2D images. That is, the electronic device 100 can capture a vivid 3D image including both 2D image information and 3D outline information through the 3D camera 123 .
- the 2D camera may multiplex the same lighting components as the 3D camera.
- the rear camera module 120 may only include the second light emitting part 1232 .
- FIG. 4 is another application scenario of the 3D camera 123 provided by the embodiment of the present application.
- the electronic device 100 may perform operations related to face recognition through the 3D camera 123 .
- the electronic device 100 may acquire the 3D contour information of the human face through the 3D camera 123 in the front camera module 110 .
- the electronic device 100 may match the acquired 3D contour information with the 3D contour template stored in the electronic device 100 . If the matching degree is relatively high, the electronic device 100 may determine that the face recognition is successful, and perform an operation corresponding to the successful face recognition (such as unlocking the screen); if the matching degree is relatively low, the electronic device 100 may determine that the face recognition is successful If it fails, and perform the operation corresponding to the failure of face recognition (such as displaying the password input interface).
- FIG. 5 is another application scenario of the 3D camera 123 provided by the embodiment of the present application.
- the electronic device 100 may acquire the user's 3D gesture through the 3D camera 123, and perform an operation corresponding to the 3D gesture.
- the electronic device 100 may display a prompt message "Do you want to delete the file?” on the display screen 10 to ask the user whether to delete the file.
- the user may instruct the electronic device 100 to delete the file through the 3D confirmation gesture 34 .
- the electronic device 100 may display a prompt message “Please keep the current gesture, the file can be deleted after 1 s” on the display screen 10 , instructing the user to keep the 3D confirmation gesture 34 for at least 1 s.
- the electronic device 100 may delete the file.
- the electronic device 100 may display the 3D gesture currently captured by the 3D camera 123 in the lower left corner of the display screen 10 .
- the user may use the game function of the electronic device 100 and interact with the electronic device 100 through 3D gestures to implement corresponding game operations.
- FIG. 6 is another application scenario of a 3D image provided by an embodiment of the present application.
- the electronic device 100 can use the 3D camera 123 to create three-dimensional models of entities such as buildings, homes, objects, and the like.
- the user may use a 3D camera (not shown in Figure 6) to photograph the scene in the room.
- a scene in a room may include, for example, equipment, furniture, room architecture, and the like in the room.
- the electronic device 100 can generate a corresponding home three-dimensional model 35 according to the captured 3D image. As shown in FIG. 6 , the electronic device can display the home three-dimensional model 35 on the display screen 10 .
- the user can intuitively observe a three-dimensional miniature of the room.
- the user when the user is ready to add a new item to the room, the user can operate the electronic device 100 to generate a three-dimensional model of the item and a three-dimensional model of the home containing the item.
- the user can operate the electronic device 100 to adjust the placement angle and placement position of the items in the three-dimensional model of the home. Therefore, the user can preview the visual effect of the room after the item is placed in the room.
- FIG. 7 is a schematic structural diagram of a 3D lens 1231 provided by an embodiment of the present application.
- the 3D lens 1231 can be fixed on the mount 460 in the electronic device 100 .
- the 3D lens 1231 may be a fixed focal length lens (or a fixed focal length lens), or a zoom lens.
- the 3D lens 1231 may also be a short-focus lens, a medium-telephoto lens, a telephoto lens, and the like.
- the 3D lens 1231 may include the lens barrel 410 .
- One end of the lens barrel 410 is provided with a light inlet, and light outside the 3D lens 1231 can pass through the light inlet and enter the 3D lens 1231 .
- the lens barrel 410 shown in FIG. 7 is only schematic, and the present application may not limit the structure, size, etc. of the lens barrel 410 .
- the 3D lens 1231 may further include one or more lenses 420(lens) disposed within the lens barrel 410 . Light from the light inlet of the lens barrel 410 may pass through the lens 420 within the lens barrel 410 .
- the lenses shown in FIG. 7 are only schematic, and the present application may not limit the number of lenses, lens structures, and the like.
- the lens 420 may be a plastic lens or a glass lens. Lens 420 may be a spherical lens or an aspherical lens.
- the 3D lens 1231 may also include an autofocus drive assembly 430 (also referred to as a motor).
- the auto focus drive assembly 430 can be used to control the field of view, auto focus, optical image stabilization, and the like of the lens 1231 .
- the autofocus driving assembly 430 may be assembled with the end of the lens barrel 410 away from the light inlet.
- the auto-focus driving assembly 430 may further include a driving integrated circuit (not shown in FIG. 7 ) and the like provided in the housing.
- the 3D lens 1231 may also include an image sensor 440 (sensor).
- the image sensor 440 may be a semiconductor chip. In this embodiment of the present application, the image sensor 440 may also be referred to as a DToF sensor.
- Hundreds of thousands to millions of photodiodes eg, single photon avalanche diodes (SPADs)) are provided on the surface of the image sensor 440 .
- a photodiode generates an electric charge when illuminated by light, thereby converting the optical signal into an electrical signal.
- the image sensor 440 may be, for example, a charge coupled device (CCD), a complementary metal-oxide semiconductor (CMOS), or the like. As shown in FIG. 7 , the image sensor 440 may be fixed on the mount 460 of the electronic device 100 , for example.
- the 3D lens 1231 may also include a filter 450 .
- the filter 450 can eliminate unnecessary light (such as visible light) projected on the image sensor 440, and prevent the image sensor 440 from generating image defects such as moire, so as to improve its effective resolution and image restoration.
- the 3D lens 1231 may further include, for example, a circuit board (not shown in FIG. 7 ), a gyroscope (not shown in FIG. 7 ), and the like.
- the circuit board may be a flexible printed circuit (FPC) or a printed circuit board (PCB).
- the circuit board can be used to transmit the electrical signals acquired by the image sensor 440 to the processor or controller, the photosensitive driver, etc. on the electronic device 100 .
- the gyroscope can be used to improve the anti-shake performance of the 3D lens 1231, for example.
- the working principle of the 3D lens 1231 may be that the light reflected by the subject may pass through one or more lenses 420 in the lens barrel 410 , the autofocus driving component 430 , and be projected onto the surface of the image sensor 440 .
- the lens barrel 410 can be driven by the autofocus driving component 430 by utilizing the principle of lens imaging, so that the lens 420 in the lens barrel 410 can be moved to a proper position.
- the light can be focused on the image sensor 440 to form a clear optical image.
- the image sensor 440 can convert optical signals into electrical signals, so as to obtain image information of the subject.
- FIG. 8 is a schematic structural diagram of an image sensor 440 provided by an embodiment of the present application.
- the image sensor 440 may include a plurality of photosensitive units 510 , and the plurality of photosensitive units 510 may be arranged in an array form to form an N1 ⁇ N2 photosensitive unit array, where N1 and N2 are both integers greater than 1.
- the photosensitive unit 510 may include, for example, a SPAD.
- One pixel unit may correspond to one or more photosensitive units 510 .
- the electronic device or the processor (or controller) in the electronic device can determine the image of the target pixel unit in the 3D image according to the signal detected by at least one target photosensitive unit 510 information, wherein the target pixel unit may correspond to the at least one target photosensitive unit 510 .
- the electronic device or the processor (or controller) in the electronic device can aggregate the signals detected by each photosensitive unit 510 in the N1 ⁇ N2 photosensitive unit array to determine the 3D image information of the subject.
- the photosensitive driver may drive all the photosensitive cells 510 in the image sensor 440 at one time.
- the photosensitive driver may drive the photosensitive units 510 in the image sensor 440 in batches, that is, only drive all the photosensitive units 510 in a certain photosensitive area of the image sensor 440 at a time.
- the power supply of the electronic device may come from a battery, and the battery has a relatively limited power supply.
- the photosensitive driver may not be able to control all the photosensitive units 510 in the image sensor 440 to be driven.
- the photosensitive unit array in the target photosensitive area 520 may be a part of the N1 ⁇ N2 photosensitive unit array.
- the photosensitive driver can drive all the photosensitive units 510 in the target photosensitive area 520, and the other photosensitive units 510 in the N1 ⁇ N2 photosensitive unit array can be in an undriven state.
- the rectangle filled with oblique lines in FIG. 8 may represent the currently driven photosensitive unit 510 .
- all the photosensitive units 510 in the current target photosensitive area 520 may be in a driven state.
- FIG. 9 shows a schematic structural diagram of a driving circuit 600 corresponding to the target photosensitive area 520 . It should be understood that the driving circuit 600 shown in FIG. 9 is only schematic, and the specific form of the driving circuit 600 may not be limited in the present application. For example, the driving circuit 600 corresponding to the target photosensitive area 520 may include a greater or lesser number of electronic components.
- the driving circuit 600 can supply power to the plurality of photosensitive units 510 in the target photosensitive area 520 .
- the first input terminal 591 of the photosensitive unit 510 may be electrically connected to the driving connection terminal with a voltage value of V0 (hereinafter referred to as “V0 driving connection terminal”), and the second input terminal 592 of the photosensitive unit 510 may be connected to the voltage value of V1.
- V1 driving connection terminal or the driving connection terminal with a voltage value of V2 (hereinafter referred to as "V2 driving connection terminal”) is electrically connected.
- the working voltage of the photosensitive unit 510 may be, for example, V3.
- V0>0 V0>V2>V1
- V0 ⁇ 0 V0 ⁇ V2 ⁇ V1
- the load voltage of the photosensitive unit 510 is lower than that of the photosensitive unit 510 Therefore, the photosensitive unit 510 may not work normally; at this time, the photosensitive unit 510 may be in an undriven state.
- the load voltage of the driving connection terminal electrically connected to the second input terminal 592 of the photosensitive unit 510 may be adjusted (eg, from the voltage value of V1 to the voltage value of V2, or from the voltage value of V2 to the voltage value of V1), so as to The photosensitive unit 510 is controlled to be driven or not driven.
- the driving circuit may further include an electrical connection terminal conversion device 610 , and the electrical connection terminal conversion device 610 may be used to switch the driving connection terminal that is electrically connected to the second input terminal 592 of the photosensitive unit 510 .
- the electrical connection terminal conversion device may be a metal oxide semiconductor field effect (metal oxide semiconductor, MOS) transistor.
- MOS metal oxide semiconductor field effect
- the MOS transistor can be electrically connected from the second input terminal 592 of the photosensitive unit 510 to the V1 driving connection terminal, switched to the second input terminal 592 of the photosensitive unit 510 and electrically connected to the V2 driving connection terminal, or electrically connected from the second input terminal 592 of the photosensitive unit 510 to the V2 driving connection terminal.
- the input terminal 592 is electrically connected to the V2 driving connection terminal
- the second input terminal 592 switched to the photosensitive unit 510 is electrically connected to the V1 driving connection terminal.
- FIG. 10 shows the photosensitive principle diagram of the photosensitive unit.
- FIG. 10 shows three photosensitive units arranged adjacently, namely a photosensitive unit 5101 , a photosensitive unit 5102 , and a photosensitive unit 5103 .
- Light from the subject (as shown by the solid arrow in FIG. 10 ) can be irradiated on the photosensitive unit 5101 , the photosensitive unit 5102 , and the photosensitive unit 5103 .
- the photoelectric conversion effect can occur in the photosensitive unit, and electron-hole pairs are formed in the photosensitive unit, so that the photosensitive unit can convert the optical signal into an electrical signal (as shown by the dotted arrow in FIG. 10 ).
- an optical signal irradiated on the photosensitive unit 5102 may be converted into a current I 0 within the photosensitive unit 5102 .
- a deep trench isolation (DTI) is set between the photosensitive units (as shown by the rectangle filled with dot matrix in Figure 10).
- DTI deep trench isolation
- a deep groove isolation 711 may be provided between the photosensitive unit 5101 and the photosensitive unit 5102
- a deep groove isolation 712 may be provided between the photosensitive unit 5102 and the photosensitive unit 5103 .
- the electron-hole pairs in the photosensitive unit 5101 can recombine to form an optical signal ⁇ 1 , and the optical signal ⁇ 1 can pass through the deep trench isolation and be incident on the photosensitive unit 5102 , and be converted into the photosensitive unit 5102 electron-hole pairs, thereby generating a current I 1 corresponding to the optical signal ⁇ 1 with a certain probability.
- the electron-hole pairs in the photosensitive unit 5103 can recombine to form an optical signal ⁇ 2 , and the optical signal ⁇ 2 can pass through the deep trench isolation and be incident to the photosensitive unit 5102 and be converted into electron-hole pairs in the photosensitive unit 5102, Therefore, a current I 2 corresponding to the optical signal ⁇ 2 is generated with a certain probability.
- the photosensitive unit 5102 not only converts the light signal from the object to the current I 0 , but also may convert the crosstalk light signal to the current (such as the above-mentioned currents I 1 , I 2 ).
- the photosensitive unit 5102 usually has relatively high photosensitivity, and may also trigger relatively large current for relatively weak light signals. It can be seen that there may be crosstalk of optical signals between adjacent photosensitive units; the crosstalk of the optical signals may affect the photosensitive accuracy of the photosensitive units.
- FIG. 11 shows a degree of optical signal crosstalk between adjacent photosensitive units.
- the plurality of photosensitive units shown in FIG. 11 may be the plurality of photosensitive units in the dotted frame in FIG. 8 .
- the photosensitive units adjacent to the photosensitive unit 810 include a photosensitive unit 801 , a photosensitive unit 802 , a photosensitive unit 803 , a photosensitive unit 804 , a photosensitive unit 805 , a photosensitive unit 806 , a photosensitive unit 807 , and a photosensitive unit 808 .
- the photosensitive unit 802, the photosensitive unit 810, and the photosensitive unit 807 may be a plurality of photosensitive units in the same column.
- the spacing between two adjacent photosensitive units on the same column may be, for example, the row spacing a of the photosensitive units.
- the photosensitive unit 804, the photosensitive unit 810, and the photosensitive unit 805 may be a plurality of photosensitive units on the same row.
- the spacing between two adjacent photosensitive units on the same row may be, for example, the column spacing b of the photosensitive units.
- the photosensitive unit 801, the photosensitive unit 810, and the photosensitive unit 808 may be a plurality of photosensitive units on the same oblique line.
- the photosensitive unit 803 , the photosensitive unit 810 , and the photosensitive unit 806 are a plurality of photosensitive units on the same oblique line.
- the distance c between two adjacent photosensitive units located on the same oblique line can be, for example,
- the oblique line may be a line inclined with respect to both the row and the column.
- the oblique line can satisfy the following definition: there is a row adjacent photosensitive unit (photosensitive unit 804 in FIG. 11 ) adjacent to the target photosensitive unit (photosensitive unit 810 in FIG. 11 ) on the row, and there is a photosensitive unit adjacent to the target photosensitive unit (photosensitive unit 810 in FIG. 11 ) on the column, Adjacent photosensitive units in a column adjacent to the target photosensitive unit (photosensitive unit 802 in FIG. 11 ), there are obliquely adjacent photosensitive units adjacent to the target photosensitive unit on the oblique line (photosensitive unit 801 in FIG. 11 ),
- the adjacent photosensitive units in the row may be adjacent to the diagonally adjacent photosensitive units on the same column, and the adjacent photosensitive units in the column may be adjacent to the diagonally adjacent photosensitive units on the same row.
- the spacing between the photosensitive units may be slightly smaller than the spacing between two adjacent photosensitive units on the same oblique line. Therefore, the optical crosstalk between two adjacent photosensitive units on the same row or the same column may be slightly larger than the optical crosstalk between two adjacent photosensitive units on the same oblique line.
- the degree of optical crosstalk between two adjacent photosensitive units can be determined.
- the degree of optical crosstalk between two adjacent photosensitive units on the same row or column may be about 3%.
- the degree of optical crosstalk between two adjacent photosensitive units on the same oblique line may be about 0.75%.
- FIG. 12 is a schematic structural diagram of an image processor 440 provided by an embodiment of the present application.
- the difference from the image sensor 440 shown in FIG. 8 may include that the target photosensitive area 520 of the image sensor 440 may include a plurality of first-type photosensitive units 511 that are currently driven and a plurality of first-type photosensitive units 511 that are not currently driven.
- the second type of photosensitive unit 512 .
- the rectangles filled with diagonal lines may represent the currently driven first-type photosensitive units 511 .
- blank rectangles may represent the second type of photosensitive units 512 that are not currently driven.
- the driving mode of the photosensitive units 510 in the target photosensitive area 520 can satisfy: on the same row, there can be one second photosensitive unit 511 between any two adjacent first-type photosensitive units 511 A photosensitive unit 512; on the same column, there is a second photosensitive unit 512 between any two adjacent first-type photosensitive units 511; and, on the same diagonal line, any two adjacent first-type photosensitive units 512
- the photosensitive units 511 of one type may not be separated from the photosensitive units 512 of the second type.
- the optical crosstalk experienced by any first type of photosensitive unit 511 mainly comes from a plurality of obliquely adjacent photosensitive units (obliquely adjacent photosensitive units may refer to photosensitive units 510 adjacent on an oblique line).
- obliquely adjacent photosensitive units may refer to photosensitive units 510 adjacent on an oblique line.
- the target photosensitive driving batch may include a plurality of photosensitive driving sub-batches. That is to say, each photosensitive driving sub-batch only drives part of the photosensitive units in the target photosensitive area 520 , and each photosensitive unit 510 in the target photosensitive area 520 can be driven by a plurality of photosensitive driving sub-batches.
- the plurality of photosensitive driving sub-batches may include a first photosensitive driving sub-batch and a second photosensitive driving sub-batch.
- FIG. 12 shows the states of the plurality of photosensitive cells 510 in the target photosensitive area 520 (including a driven state and a non-driven state).
- FIG. 13 shows the states of the plurality of photosensitive cells 510 in the target photosensitive area 520 (including the driven state and the non-driven state).
- two photosensitive driving sub-batches can be used, so that each photosensitive unit 510 in the target photosensitive area 520 can be driven.
- the plurality of photosensitive units 510 in the target photosensitive area 520 include a plurality of first photosensitive units and a plurality of second photosensitive units.
- the first photosensitive driving sub-batch the plurality of first photosensitive units are driven and the plurality of second photosensitive units are not driven; therefore, in the first photosensitive driving sub-batch, the first photosensitive units belong to the first photosensitive unit
- One type of photosensitive unit 511 the second photosensitive unit belongs to the second type of photosensitive unit 512 .
- the plurality of first photosensitive units are not driven, and the plurality of second photosensitive units are driven; therefore, in the second photosensitive driving sub-batch, the first photosensitive units belong to the second photosensitive unit.
- the second type of photosensitive unit 512 belongs to the first type of photosensitive unit 511 .
- the first type of photosensitive units 511 that have been driven in the first photosensitive driving sub-batch may be the second type of photosensitive units 512 that have not been driven in the second photosensitive driving sub-batch.
- the second-type photosensitive units 512 that are not driven in the first photosensitive driving sub-batch may be the first-type photosensitive units 511 that are driven in the second photosensitive driving sub-batch.
- one pixel unit may correspond to one photosensitive unit 510 .
- the target pixel area may include a plurality of pixel units corresponding to the plurality of photosensitive units 510 one-to-one.
- the electronic device or the processor (or controller) in the electronic device can acquire the image information of the first part of the pixel unit in the target pixel area, the first part of the pixel unit It may correspond to the first type of photosensitive units 511 in the first photosensitive driving sub-batch.
- the electronic device or the processor (or controller) in the electronic device can acquire the image information of the second part of the pixel units in the target pixel area, the second part
- the pixel units may correspond to the first-type photosensitive units 511 in the second photosensitive driving sub-batch.
- the image information of the target pixel area can be obtained through two photosensitive driving batches.
- one pixel unit may correspond to multiple photosensitive units 510 .
- the target pixel unit corresponds to a plurality of photosensitive units 510 in the target photosensitive area 520 . Since in the examples shown in FIG. 12 and FIG. 13 , only one photosensitive driving sub-batch may not be able to obtain complete image information of the target pixel unit.
- the detection signals of all the photosensitive cells 510 in the target photosensitive area 520 can be obtained through the first photosensitive driving sub-batch and the second photosensitive driving sub-batch as described above. Therefore, the electronic device or the processor (or controller) in the electronic device can determine the image information of the target pixel unit according to the signal detected by the first photosensitive driving sub-batch and the signal detected by the second photosensitive driving sub-batch.
- FIG. 14 is a schematic structural diagram of a driving circuit 600 corresponding to a target photosensitive area 520 provided by an embodiment of the present application. It should be understood that the driving circuit 600 shown in FIG. 14 is only schematic, and the specific form of the driving circuit 600 may not be limited in the present application. For example, the driver circuit 600 may include a greater or lesser number of electronic components.
- a photosensitive driver (not shown in FIG. 14 ) in the image sensor can supply power to the photosensitive unit 510 through the driving circuit 600 .
- the photosensitive driver may include a first driving connection terminal 911, a second driving connection terminal 912, and a third driving connection terminal 913; the voltage value of the first driving connection terminal 911 may be V0, and the voltage value of the second driving connection terminal 912 may be V1 , the voltage value of the third driving connection terminal 913 may be V2.
- the working voltage of the photosensitive unit 510 may be V3. In the case of V0>0, V0>V2>V1, and
- the driving circuit 600 may include a plurality of photosensitive units 510 and a plurality of first electrical connection terminal conversion devices 610 corresponding to the plurality of photosensitive units 510 one-to-one.
- the first electrical connection terminal conversion device 610 may be a MOS transistor.
- the photosensitive unit 510 may be connected in series with the corresponding first electrical connection terminal conversion device 610 .
- the photosensitive unit 510 may include a first input end 521 and a second input end 522 .
- the first input terminal 521 may be electrically connected to the first driving connection terminal 911 of the photosensitive driver.
- the first electrical connection terminal conversion device 610 may include a first electrical connection terminal 611 , a second electrical connection terminal 612 , and a third electrical connection terminal 613 .
- the first electrical connection terminal 611 may be electrically connected to the second input terminal 522 of the photosensitive unit 510 .
- the second electrical connection terminal 612 of the first electrical connection terminal conversion device 610 may be electrically connected to the second driving connection terminal 912 of the photosensitive driver.
- the third electrical connection terminal 613 of the first electrical connection terminal conversion device 610 may be electrically connected to the third driving connection terminal 913 of the photosensitive driver.
- the first electrical connection terminal switching device 610 can switch the electrical connection terminal that is connected to the first electrical connection terminal 611, so that the first electrical connection terminal 611 and the second electrical connection terminal 612 are connected to each other (and the first electrical connection terminal 611 is connected to the second electrical connection terminal 612).
- the three electrical connection terminals 613 are disconnected), or the first electrical connection terminal 611 and the third electrical connection terminal 613 are connected (and the first electrical connection terminal 611 and the second electrical connection terminal 612 are disconnected).
- the first electrical connection terminal conversion device 610 can adjust the load voltage of the photosensitive unit.
- the load voltage of the photosensitive unit 510 may be
- the load voltage of the photosensitive unit 510 may be
- FIG. 14 shows a specific electrical connection manner of the first type of photosensitive unit 511 and the second type of photosensitive unit 512 .
- the load voltage of the first type of photosensitive unit 511 may be
- the load voltage of the second type of photosensitive unit 512 may be
- FIG. 15 is a schematic structural diagram of a driving circuit 600 corresponding to a target photosensitive area 520 provided by an embodiment of the present application. It should be understood that the driving circuit 600 shown in FIG. 15 is only schematic, and the specific form of the driving circuit 600 may not be limited in the present application. For example, the driver circuit 600 may include a greater or lesser number of electronic components.
- a photosensitive driver (not shown in FIG. 14 ) in the image sensor can supply power to the photosensitive unit 510 through the driving circuit 600 .
- the photosensitive driver may include a fourth driving connection terminal 914 and a fifth driving connection terminal 915; the voltage value of the fourth driving connection terminal 914 may be V0, and the voltage value of the fifth driving connection terminal 915 may be V1.
- the working voltage of the photosensitive unit 510 may be V3, where
- the driving circuit 600 may include a plurality of photosensitive units 510 .
- the third input terminal 523 of each photosensitive unit 510 may be electrically connected to the fourth driving connection terminal 914 of the photosensitive driver.
- the plurality of photosensitive units 510 may include a plurality of first photosensitive units 510a and a plurality of second photosensitive units 510b.
- the first photosensitive unit 510a may include a third input end 523a and a fourth input end 524a.
- the second photosensitive unit 510b may include a fifth input end 523b and a sixth input end 524b. Both the third input terminal 523a and the fifth input terminal 523b may be electrically connected to the fourth driving connection terminal 914 of the photosensitive driver.
- the second electrical connection terminal conversion device 620 may include a fourth electrical connection terminal 621 , a fifth electrical connection terminal 622 , and a sixth electrical connection terminal 623 .
- the fourth electrical connection terminal 621 may be electrically connected to the fourth input terminal 524a of the first photosensitive unit 510a.
- the fifth electrical connection terminal 622 of the second electrical connection terminal conversion device 620 may be electrically connected to the sixth input terminal 524b of the second photosensitive unit 510b.
- the sixth electrical connection terminal 623 of the second electrical connection terminal conversion device 620 may be electrically connected to the fifth driving connection terminal 915 of the photosensitive driver.
- the second electrical connection terminal switching device 620 can switch the electrical connection terminal that is connected to the sixth electrical connection terminal 623, so that the sixth electrical connection terminal 623 is connected to the fourth electrical connection terminal 621 (and the sixth electrical connection terminal 623 is connected to the fourth electrical connection terminal 621).
- the fifth electrical connection end 622 is disconnected), or the sixth electrical connection end 623 is connected to the fifth electrical connection end 622 (and the sixth electrical connection end 623 is disconnected from the fourth electrical connection end 621 ).
- the second electrical connection terminal conversion device 620 can adjust the load voltage of the photosensitive unit 510 .
- the load voltage of the first photosensitive unit 510a may be
- the load voltage of the unit 510a is greater than the working voltage of the photosensitive unit 510, so the first photosensitive unit 510a can work normally, that is, in a driven state; at the same time, the sixth electrical connection terminal 623 is disconnected from the fifth electrical connection terminal 622;
- the second photosensitive unit 510b is in an off state (the load voltage of the photosensitive unit 510 can be approximately regarded as 0), and the load voltage of the second photosensitive unit 510b is lower than the working voltage of the photosensitive unit 510, so the second photosensitive unit 510b may not work normally, That is, in an undriven state.
- the first photosensitive unit 510 a belongs to the first type of photosensitive unit 511
- the second photosensitive unit 510 b belongs to the second type of photosensitive unit 512 .
- FIG. 15 shows an electrical connection manner of the first type of photosensitive unit 511 and the second type of photosensitive unit 512 .
- the load voltage of the first type of photosensitive unit 511 may be
- the second type of photosensitive unit 512 may be in an off state. That is, on the same row, any two adjacent photosensitive units 510 are electrically connected in different ways. Moreover, in the same column, any two adjacent photosensitive units 510 have different electrical connection modes.
- driver circuit 600 will come to mind to one skilled in the art having the benefit of the teachings presented in the related description and the related drawings. Therefore, it is to be understood that this application is not limited to the specific embodiments disclosed.
- the photosensitive driver 910 may not be able to drive all the photosensitive units in the image sensor 440 at the same time.
- the photosensitive driver 910 can drive the photosensitive units in the image sensor 440 in batches, that is, in different driving batches, drive the photosensitive units in different photosensitive areas.
- the image sensor 440 may include n photosensitive regions, which are a first photosensitive region, a second photosensitive region, ... i-th photosensitive region, ... n-th photosensitive region, 1 ⁇ i ⁇ n, n> 1, and i and n are both integers.
- the total batch of the photosensitive driver 910 driving the photosensitive cell array may include n photosensitive driving batches, and the n photosensitive driving batches may correspond to the n photosensitive regions one-to-one. That is, the photosensitive driver 910 can drive different photosensitive regions in different photosensitive driving batches.
- the n photosensitive driving batches may include a first photosensitive driving batch, a second photosensitive driving batch, ..., an i-th photosensitive driving batch, ..., an n-th photosensitive driving batch.
- the photosensitive driver 910 can drive a plurality of photosensitive units in the i-th photosensitive area.
- the image sensor 440 may further include a third electrical connection terminal conversion device 630 , through which the power-on area of the image sensor 440 may be changed.
- the third electrical connection terminal conversion device 630 may be a MOS transistor.
- the third electrical connection terminal conversion device 630 may include a seventh electrical connection terminal 631 , an eighth electrical connection terminal 632 , and a ninth electrical connection terminal 633 .
- the seventh electrical connection terminal 631 may be electrically connected to the photosensitive driver 910 .
- the eighth electrical connection terminal 632 can be electrically connected to the electrical signal input terminal of the first photosensitive area, so that the photosensitive driver 910 can be electrically connected to the photosensitive unit in the first photosensitive area through the third electrical connection terminal conversion device 630 .
- the ninth electrical connection terminal 633 can be electrically connected to the electrical signal input terminal of the second photosensitive area, so that the photosensitive driver 910 can be electrically connected to the photosensitive unit in the second photosensitive area through the third electrical connection terminal conversion device 630.
- the third electrical connection terminal switching device 630 can switch the electrical connection terminal that is electrically connected to the seventh electrical connection terminal 631 , so that the seventh electrical connection terminal 631 and the eighth electrical connection terminal 632 are connected (and the seventh electrical connection terminal 631 and the seventh electrical connection terminal 631 are electrically connected to each other).
- the ninth electrical connection terminal 633 is disconnected), or the seventh electrical connection terminal 631 is disconnected from the ninth electrical connection terminal 633 (and the seventh electrical connection terminal 631 and the eighth electrical connection terminal 632 are disconnected).
- the target photosensitive driving batch in the n photosensitive driving batches may include 2 photosensitive driving sub-batches (the first photosensitive driving sub-batch shown in FIG. 12 and FIG. 13 ) 2nd and 2nd photo-drive sub-lots).
- 2 photosensitive driving sub-batches the first photosensitive driving sub-batch shown in FIG. 12 and FIG. 13
- 2nd and 2nd photo-drive sub-lots the second photosensitive area
- the relative position of the first photosensitive unit group in the first photosensitive area (the rectangle marked with “1” in FIG. 16 ) in the first photosensitive area can be the same as that of the third photosensitive unit in the second photosensitive area.
- the groups (the rectangle marked with “3" in Fig. 16) correspond to the relative positions of the second photosensitive area.
- the relative position of the second photosensitive unit group in the first photosensitive area (the rectangle marked with “2” in FIG. 16 ) in the first photosensitive area can be the same as that of the fourth photosensitive unit group in the second photosensitive area (such as The rectangle marked with “4” in FIG. 16 corresponds to the relative position of the second photosensitive region.
- the photosensitive driver 910 may execute the first photosensitive driving batch. Accordingly, the photosensitive cells in the first photosensitive area can be driven in batches. As shown in FIG. 16 , the seventh electrical connection terminal 631 of the third electrical connection terminal conversion device 630 may be electrically connected to the eighth electrical connection terminal 632 . Optionally, the photosensitive units in other photosensitive regions of the image sensor 440 (except the first photosensitive region) may not be driven.
- the first photosensitive driving batch further includes the above-mentioned first photosensitive driving sub-batch and second photosensitive driving sub-batch.
- the first photosensitive unit group in the first photosensitive area can be driven, and the second photosensitive unit group in the first photosensitive area can be in an undriven state .
- the photosensitive units in the first photosensitive unit group may belong to the first type of photosensitive units 511 described above, and the photosensitive units in the second photosensitive unit group may be the second type of photosensitive units 512 described above. .
- the second photosensitive unit group in the first photosensitive area can be driven, and the first photosensitive unit group in the first photosensitive area can be in an unused state. state of the drive.
- the photosensitive units in the second photosensitive unit group may belong to the first type of photosensitive units 511 described above, and the photosensitive units in the first photosensitive unit group may be the second type of photosensitive units 512 described above. .
- the photosensitive driver 910 may execute the second photosensitive driving batch. Accordingly, the photosensitive units in the second photosensitive area can be driven in batches. As shown in FIG. 16 , the seventh electrical connection terminal 631 of the third electrical connection terminal conversion device 630 may be electrically connected to the ninth electrical connection terminal 633 . Optionally, the photosensitive units in other photosensitive regions of the image sensor 440 (except the second photosensitive region) may not be driven.
- the second photosensitive driving batch further includes the above-mentioned first photosensitive driving sub-batch and second photosensitive driving sub-batch.
- the first photosensitive driving sub-batch of the second photosensitive driving batch the third photosensitive unit group in the second photosensitive area can be driven, and the fourth photosensitive unit group in the second photosensitive area can be in an undriven state .
- the photosensitive units in the third photosensitive unit group may belong to the first type of photosensitive units 511 described above, and the photosensitive units in the fourth photosensitive unit group may be the second type of photosensitive units 512 described above. .
- the fourth photosensitive unit group in the second photosensitive area can be driven, and the third photosensitive unit group in the second photosensitive area can be in a non-active state. state of the drive.
- the photosensitive units in the fourth photosensitive unit group may belong to the above-mentioned first type of photosensitive units 511, and the photosensitive units in the third photosensitive unit group may be the above-mentioned second type of photosensitive units 512 .
- FIG. 17 shows another driving manner of the photosensitive units in the first photosensitive area and the second photosensitive area.
- the relative position of the third photosensitive unit group in the second photosensitive area (the rectangle marked with “3” in FIG. 17 ) in the second photosensitive area can be the same as that of the second photosensitive unit in the first photosensitive area.
- the groups (the rectangle marked with “2" in Fig. 17) correspond to the relative positions of the second photosensitive area.
- the relative position of the fourth photosensitive unit group in the second photosensitive area (the rectangle marked with “4” in FIG. 17 ) in the second photosensitive area can be the same as that of the first photosensitive unit group in the first photosensitive area (such as The rectangle marked with “1” in FIG. 17 corresponds to the relative position of the first photosensitive region.
- the photosensitive driver 910 can execute the first photosensitive driving batch.
- the first photosensitive driving batch further includes the first photosensitive driving sub-batch and the second photosensitive driving sub-batch described above.
- the first photosensitive driving sub-batch of the first photosensitive driving batch the first photosensitive unit group in the first photosensitive area can be driven, and the second photosensitive unit group in the first photosensitive area can be in an undriven state .
- the second photosensitive driving sub-batch of the first photosensitive driving batch the second photosensitive unit group in the first photosensitive area may be driven, and the first photosensitive unit group may be in an undriven state.
- the photosensitive driver 910 can execute the second photosensitive driving batch.
- the second photosensitive driving batch further includes the first photosensitive driving sub-batch and the second photosensitive driving sub-batch described above.
- the third photosensitive unit group in the second photosensitive area can be driven, and the fourth photosensitive unit group in the second photosensitive area can be in an undriven state .
- the fourth photosensitive unit group in the second photosensitive area may be driven, and the third photosensitive unit group may be in an undriven state.
- the electronic device or the processor (or controller) of the electronic device can obtain the light from the light-emitting component 1232 to the DToF incident on the 3D camera according to the light emitted from the light-emitting component 1232 . 3D image of the subject.
- the light-emitting driver 920 may perform n light-emitting driving batches on the light-emitting component 1232, and the n light-emitting driving batches may correspond to the n photosensitive driving batches one-to-one.
- the n light-emission driving batches may include a first light-emission driving batch, a second light-emission driving batch, ..., the i-th light-emission driving batch, ..., the n-th light-emission driving batch.
- the ith light-emitting driving batch may correspond to the ith photosensitive driving batch.
- each photosensitive driving batch in the n photosensitive driving batches may further include 2 photosensitive driving sub-batches.
- each of the n light-emitting driving batches may further include 2 light-emitting driving sub-batches.
- the two light-emitting driving sub-batches may correspond to the two light-emitting driving sub-batches one-to-one.
- the first light-emitting driving sub-batch of the i-th light-emitting driving batch may correspond to the first light-emitting driving sub-batch of the i-th light-emitting driving batch
- the second light-emitting driving sub-batch of the i-th light-emitting driving batch may correspond to The second photosensitive driving sub-batch of the i-th photosensitive driving batch corresponds to.
- the timing when the light-emitting driver 920 drives the light-emitting component 1232 to emit a light signal is t i1 , correspondingly, in the first light-emitting driving sub-batch of the i-th light-emitting driving batch Within a batch, the time when the target photosensitive unit detects the light signal is t i1 '.
- the electronic device or the processor (or controller) of the electronic device can obtain the DToF corresponding to the target photosensitive unit as t i1 '-t i1 .
- the light emitting part 1232 may include a plurality of light emitting units.
- the light-emitting driver 920 may drive the same light-emitting unit to emit light.
- the light-emitting driver 920 may drive all light-emitting cells within the light-emitting part 1232 .
- the light-emitting driver 920 may drive different light-emitting units to emit light. For example, by dividing the photosensitive area of the image sensor 440 into n equal parts, n photosensitive areas can be obtained. In addition, according to the same dividing method, the light-emitting regions of the light-emitting component 1232 are equally divided to obtain n light-emitting regions corresponding to the n photosensitive regions one-to-one.
- the n light-emitting regions may include a first light-emitting region, a second light-emitting region, ... i-th light-emitting region, ... n-th light-emitting region, 1 ⁇ i ⁇ n, and i and n are both integers. Wherein, the i-th light-emitting region may correspond to the i-th photosensitive region.
- the light-emitting unit in the i-th light-emitting area may expose the subject one or more times.
- the photosensitive unit in the i-th photosensitive area can perform one or more detections on the light signal from the photographed object.
- the one or more exposures may correspond one-to-one with the one or more detections.
- FIG. 18 is a schematic structural diagram of a control circuit of an image sensor 440 and a light-emitting component 1232 according to an embodiment of the present application.
- the main processor (or main controller) of the electronic device can control the 3D camera to perform the shooting operation of the 3D image.
- the processor (or controller, etc.) of the 3D camera can control the light-emitting driver 920 to drive the light-emitting unit in the light-emitting component 1232, and the processor (or controller, etc.) of the 3D camera can cooperate to control the light-sensing of the image sensor 440
- the driver 910 is used to drive the photosensitive unit in the image sensor 440 .
- the light-emitting driver 910 can notify the light-emitting driver 920 of the light-emitting component 1232 through the interface between the image sensor 440 and the light-emitting component 1232 to drive the light-emitting area in the i-th light-emitting area luminous unit.
- the light-emitting driver 920 may be electrically connected with the light-emitting units in the i-th light-emitting region.
- the photosensitive driver 910 may drive the photosensitive units in the i-th photosensitive area.
- the electronic device can acquire a part of the 3D image information of the subject, and the part of the 3D image information can correspond to the i-th photosensitive area.
- the light-emitting driver 920 drives the first light-emitting region and turns off the second light-emitting region as an example for description.
- the light emitting part 1232 may include the fourth electrical connection terminal conversion device 640 .
- the fourth electrical connection terminal conversion device 640 may be a MOS transistor.
- the fourth electrical connection terminal conversion device 640 may include a tenth electrical connection terminal 641 , an eleventh electrical connection terminal 642 and a twelfth electrical connection terminal 643 .
- the tenth electrical connection terminal 641 may be electrically connected with the light emitting driver 920 .
- the eleventh electrical connection terminal 642 can be electrically connected to the electrical signal input terminal of the first light emitting area, so that the light emitting driver 920 can be electrically connected to the light emitting unit in the first light emitting area through the fourth electrical connection terminal conversion device 640 .
- the twelfth electrical connection terminal 643 can be electrically connected to the electrical signal input terminal of the second light emitting area, so that the light emitting driver 920 can be electrically connected to the light emitting unit in the second light emitting area through the fourth electrical connection terminal conversion device 640 .
- the fourth electrical connection terminal conversion device 640 can switch the electrical connection terminal that is electrically connected to the tenth electrical connection terminal 641, so that the tenth electrical connection terminal 641 is connected to the eleventh electrical connection terminal 642 (and the tenth electrical connection terminal 641 is connected to the eleventh electrical connection terminal 642).
- the twelfth electrical connection end 643 is disconnected), or the tenth electrical connection end 641 is disconnected from the twelfth electrical connection end 643 (and the tenth electrical connection end 641 and the eleventh electrical connection end 642 are disconnected).
- FIG. 19 is a schematic structural diagram of another image sensor 440 and a control circuit of the light-emitting component 1232 provided in this embodiment of the present application.
- the main processor (or main controller) of the electronic device can control the photosensitive driver 910 of the image sensor 440 to drive the photosensitive unit.
- the main processor (or main controller) of the electronic device may also cooperate to control the light-emitting driver 920 of the light-emitting component 1232 to drive the light-emitting unit.
- the main processor (or main controller) of the electronic device can pass the communication between the main processor (or main controller) and the light-emitting component 1232
- the interface is used to notify the light-emitting driver 920 of the light-emitting component 1232 to drive the light-emitting unit in the i-th light-emitting area.
- the main processor (or main controller) of the electronic device may notify the photosensitive driver 910 of the image sensor 440 through the interface between the main processor (or main controller) and the image sensor 440 to drive the The photosensitive unit in the i-th photosensitive area.
- the electronic device can acquire a part of the 3D image information of the subject, and the part of the 3D image information can correspond to the i-th photosensitive area.
- the image sensor 440 can acquire a 3D image with a resolution of 320*240.
- the electronic device or the processor (or controller) of the electronic device may drive the image sensors 440 in batches with reference to the embodiment shown in FIG. 8 . That is, the electronic device or the processor (or controller) of the electronic device drives all the photosensitive cells in the target photosensitive area 520 within the target driving batch. Assuming that the number of batches for driving the image sensor 440 is 8 times, correspondingly, the image sensor 440 can be divided into 8 photosensitive areas, and each photosensitive area can, for example, correspond to an image block with a resolution of 320*30 (or a resolution of 40*240 image block, 80*120 image block, 160*60 image block, etc.).
- the electronic device or the processor (or controller) of the electronic device may drive the image sensors 440 in batches with reference to the embodiments shown in FIGS. 12 to 19 . That is, the electronic device or the processor (or controller) of the electronic device drives only the first-type photosensitive units 511 in the target photosensitive area 520 within the target driving batch. Assuming that the number of batches for driving the image sensor 440 is still 8 times, and each photosensitive driving batch further includes 2 photosensitive driving sub-batches, correspondingly, the image sensor 440 can be divided into 4 photosensitive areas, and each photosensitive area can be divided into 4 photosensitive areas. For example, it may correspond to an image block with a resolution of 320*60 (or an image block with a resolution of 80*240, an image block with a resolution of 160*120, etc.).
- the image sensors 440 need to be driven in batches, only a part of the photosensitive units in the target driving batch may be driven without additionally increasing the driving batches of the image sensors 440 .
- FIG. 20 is a schematic structural diagram of a target photosensitive region provided by an embodiment of the present application.
- FIG. 21 shows the driving manner of a plurality of photosensitive units in the target photosensitive area.
- the image sensor includes a plurality of first-type photosensitive units 511 that are currently driven and a plurality of second-type photosensitive units 512 that are not currently driven.
- the driving manner of the photosensitive units in the target photosensitive area may satisfy: on the same row, one second-type photosensitive unit 512 may be spaced between any two adjacent first-type photosensitive units 511 . In addition, on the same column, one second-type photosensitive unit 512 is spaced between any two adjacent first-type photosensitive units 511 . Moreover, on the same oblique line, one second-type photosensitive unit 512 is spaced between any two adjacent first-type photosensitive units 511 . It can be known from the above-mentioned principle of optical crosstalk of the photosensitive unit that the control method of the photosensitive unit shown in FIG. 20 is beneficial to reduce the degree of optical crosstalk suffered by the photosensitive unit.
- the four photosensitive driving sub-batches are respectively the first photosensitive driving sub-batch, the second photosensitive driving sub-batch, the third photosensitive driving sub-batch, and the fourth photosensitive driving sub-batch.
- the photosensitive cells in the target photosensitive area can be divided into 4 photosensitive cell groups.
- the four photosensitive unit groups are in one-to-one correspondence with the four photosensitive driving sub-batches. That is, each photosensitive driving sub-batch can drive a corresponding photosensitive unit group.
- the four photosensitive unit groups can be respectively the first photosensitive unit group (the rectangle marked with “1” in FIG. 21 ), the second photosensitive unit group (the rectangle marked with “2” in FIG. 21 ), and the third photosensitive unit group (The rectangle marked "3" in Figure 21), the fourth photosensitive unit group (the rectangle marked "4" in Figure 21).
- the first photosensitive driving sub-batch can drive the first photosensitive unit group; the second photosensitive driving sub-batch can drive the second photosensitive unit group; the third photosensitive driving sub-batch can drive the third photosensitive unit group; The driving sub-batch can drive the fourth photosensitive unit group.
- the first type of photosensitive unit 511 driven in the previous photosensitive driver sub-batch may be the second type of photosensitive unit 512 that has not been driven in the next photosensitive driver sub-batch;
- the second-type photosensitive units 512 that are not driven in the batch may be the first-type photosensitive units 511 that are driven or the second-type photosensitive units 512 that are not driven in a subsequent photosensitive driving sub-batch.
- the first type of photosensitive unit 511 driven in the next photosensitive driving sub-batch may be the second type of photosensitive unit 512 not driven in the previous photosensitive driving sub-batch; in the latter photosensitive driving sub-batch
- the second-type photosensitive unit 512 that is not driven in the previous photosensitive driving sub-batch may be the first-type photosensitive unit 511 or the undriven second-type photosensitive unit 512 in the previous photosensitive driving sub-batch.
- one pixel unit may correspond to one photosensitive unit.
- the target photosensitive area may include a plurality of photosensitive units
- the target pixel area may include a plurality of pixel units corresponding to the plurality of photosensitive units one-to-one.
- the electronic device can sequentially acquire the image information of a small part of the pixel units in the target pixel area. After the four photosensitive driving sub-batches, all photosensitive units in the target photosensitive area can be successfully driven, so the electronic device can acquire image information of all pixel units in the target pixel area.
- one pixel unit may correspond to multiple photosensitive units. It is assumed that a target pixel unit exists, and the target pixel unit corresponds to a plurality of photosensitive units in the target photosensitive area. After the 4 photosensitive driving sub-batches shown in FIG. 21 , all photosensitive cells in the target photosensitive area can be successfully driven. Therefore, the electronic device can determine the image information of the target pixel unit according to the signals detected in the four photosensitive driving sub-batches.
- the driving circuit For the driving circuit, the control circuit of the light-emitting component and the image sensor, and the control method of the light-emitting component and the image sensor in the embodiments shown in FIGS. 20 and 21, reference may be made to the embodiments shown in FIGS. 12 to 19, and details are not necessary here. Repeat.
- FIG. 22 is a schematic structural diagram of a target photosensitive region provided by an embodiment of the present application.
- FIG. 23 shows the driving manner of a plurality of photosensitive units in the target photosensitive area.
- the image sensor includes a plurality of first-type photosensitive units 511 that are currently driven and a plurality of second-type photosensitive units 512 that are not currently driven.
- the driving manner of the photosensitive units in the target photosensitive area may satisfy: on the same row, there may be three second-type photosensitive units 512 spaced between any two adjacent first-type photosensitive units 511 . In addition, on the same column, three second-type photosensitive units 512 are spaced between any two adjacent first-type photosensitive units 511 . Moreover, on the same oblique line, one second-type photosensitive unit 512 is spaced between any two adjacent first-type photosensitive units 511 . It can be known from the above-mentioned principle of optical crosstalk of the photosensitive unit that the control method of the photosensitive unit shown in FIG. 22 is beneficial to reduce the degree of optical crosstalk that the photosensitive unit is subjected to.
- the photosensitive cells in the target photosensitive area can be divided into 8 photosensitive cell groups.
- the 8 photosensitive unit groups may be the first photosensitive unit group (the rectangle marked with “1” in Figure 23), the second photosensitive unit group (the rectangle marked with “2” in Figure 23), and the third photosensitive unit group (the rectangle marked “3” in Figure 23), the fourth photosensitive unit group (the rectangle marked “4" in Figure 23), the fifth photosensitive unit group (the rectangle marked "5" in Figure 23), the The 6th photosensitive unit group (the rectangle marked "6” in Figure 23), the seventh photosensitive unit group (the rectangle marked "7” in Figure 23), the eighth photosensitive unit group (the rectangle marked "8” in Figure 23) rectangle).
- the 8 photosensitive driving sub-batches corresponding to the 8 photosensitive unit groups one-to-one, and each photosensitive driving sub-batch can drive the corresponding photosensitive unit group, all photosensitive units can be driven.
- one pixel unit may correspond to one photosensitive unit. It is assumed that there is a target pixel area corresponding to the target photosensitive area. In combination with the above, after the 8 photosensitive driving sub-batches, all the photosensitive cells in the target photosensitive area can be successfully driven. Therefore, the electronic device can obtain image information of all pixel units in the target pixel area.
- one pixel unit may correspond to multiple photosensitive units. It is assumed that there is a target pixel unit, and the target pixel unit corresponds to a plurality of photosensitive units in the target photosensitive area. In combination with the above, after the 8 photosensitive driving sub-batches, all the photosensitive cells in the target photosensitive area can be successfully driven. Therefore, the electronic device can determine the image information of the target pixel unit according to the signals detected in the eight photosensitive driving sub-batches.
- the control circuit of the light-emitting component and the image sensor For the driving circuit, the control circuit of the light-emitting component and the image sensor, the control method of the light-emitting component and the image sensor, etc. in the embodiments shown in FIGS. 22 and 23, reference may be made to the embodiments shown in FIGS. Repeat.
- FIG. 24 is a schematic structural diagram of a target photosensitive region provided by an embodiment of the present application.
- FIG. 25 shows the driving manner of a plurality of photosensitive units in the target photosensitive area.
- the image sensor includes a plurality of first-type photosensitive units 511 that are currently driven and a plurality of second-type photosensitive units 512 that are not currently driven.
- the driving manner of the photosensitive units in the target photosensitive area may satisfy: on the same row, there may be three second-type photosensitive units 512 spaced between any two adjacent first-type photosensitive units 511 . In addition, on the same column, three second-type photosensitive units 512 are spaced between any two adjacent first-type photosensitive units 511 . Moreover, on the same oblique line, one second-type photosensitive unit 512 is spaced between any two adjacent first-type photosensitive units 511 . It can be known from the above-mentioned principle of optical crosstalk of the photosensitive unit that the control method of the photosensitive unit shown in FIG. 24 is beneficial to reduce the degree of optical crosstalk to which the photosensitive unit is subjected.
- the photosensitive cells in the target photosensitive area can be divided into 9 photosensitive cell groups.
- the nine photosensitive unit groups may be the first photosensitive unit group (the rectangle marked with "1” in Figure 25), the second photosensitive unit group (the rectangle marked with “2” in Figure 25), and the third photosensitive unit group (the rectangle marked “3” in Figure 25), the fourth photosensitive unit group (the rectangle marked “4" in Figure 25), the fifth photosensitive unit group (the rectangle marked "5" in Figure 25), the The 6th photosensitive unit group (the rectangle marked "6” in Figure 25), the seventh photosensitive unit group (the rectangle marked "7” in Figure 25), the eighth photosensitive unit group (the rectangle marked "8” in Figure 25) rectangle), the ninth photosensitive unit group (the rectangle marked with "9” in Figure 25).
- the 9 photosensitive driving sub-batches corresponding to the 9 photosensitive unit groups one-to-one, and each photosensitive driving sub-batch can drive the corresponding photosensitive unit group, all photosensitive units can be driven.
- one pixel unit may correspond to one photosensitive unit. It is assumed that there is a target pixel area corresponding to the target photosensitive area. In combination with the above, after the 9 photosensitive driving sub-batches, all the photosensitive cells in the target photosensitive area can be successfully driven. Therefore, the electronic device can obtain image information of all pixel units in the target pixel area.
- one pixel unit may correspond to multiple photosensitive units. It is assumed that there is a target pixel unit, and the target pixel unit corresponds to a plurality of photosensitive units in the target photosensitive area. In combination with the above, after the 9 photosensitive driving sub-batches, all the photosensitive cells in the target photosensitive area can be successfully driven. Therefore, the electronic device can determine the image information of the target pixel unit according to the signals detected in the nine photosensitive driving sub-batches.
- the control circuit of the light-emitting component and the image sensor and the control method of the light-emitting component and the image sensor in the embodiments shown in FIGS. 24 and 25, reference may be made to the embodiments shown in FIGS. Repeat.
- FIG. 26 is a schematic flowchart of a method for controlling an image sensor 440 provided by an embodiment of the present application.
- the method shown in FIG. 26 can be applied to the image sensor 440 described above, or a 3D camera or electronic device including the image sensor 440 .
- the method can be implemented by the above-mentioned image sensor 440, 3D camera or controller (or control module, control unit, etc.) or processor (or processing module, processing unit, etc.), driver (or driving module, driving unit, etc.) in the electronic device and so on.
- the image sensor 440 may include a photosensitive unit array including a plurality of photosensitive units.
- the photosensitive unit includes a first input end and a second input end;
- the photosensitive driver includes a first drive connection end, a second drive connection end, and a third drive connection end, the first drive connection end and The voltage difference between the second driving connection terminal is the first voltage, and the voltage difference between the first driving connection terminal and the third driving connection terminal is the second voltage;
- the image sensor further includes a first electrical connection A terminal conversion device, the first electrical connection terminal conversion device includes a first electrical connection terminal, a second electrical connection terminal, and a third electrical connection terminal, and the first electrical connection terminal conversion device is used for the first electrical connection.
- the photosensitive unit is switched between the connection between the second electrical connection end and the second electrical connection end, and the connection between the first electric connection end and the third electric connection end; the photosensitive unit is connected to the photosensitive driver through the first input end.
- the first drive connection terminal is electrically connected, the photosensitive unit is electrically connected with the first electrical connection terminal of the first electrical connection terminal conversion device through the second input terminal, and the first electrical connection terminal conversion device is electrically connected through the first electrical connection terminal conversion device.
- the second electrical connection terminal is electrically connected to the second driving connection terminal of the photosensitive driver, and the first electrical connection terminal conversion device is electrically connected to the third driving connection terminal of the photosensitive driver through the third electrical connection terminal;
- the controlling the load voltage of the first type of photosensitive unit to be the first voltage, and the control of the load voltage of the second type of photosensitive unit to be the second voltage includes: controlling the first electrical connection end conversion device to switch between the The first electrical connection end is connected to the electrical connection end, so that when the photosensitive unit belongs to the first type of photosensitive unit, the first electrical connection end and the second electrical connection end are conductive, and all The first electrical connection end is disconnected from the third electrical connection end, and in the case that the photosensitive unit belongs to the second type of photosensitive unit, the first electrical connection end and the third electrical connection end are connected to each other. connected, and the first electrical connection end and the second electrical connection end are disconnected.
- the plurality of photosensitive units include a plurality of first photosensitive units and a plurality of second photosensitive units, the first photosensitive units include a third input end and a fourth input end; the second photosensitive units include a third input end and a fourth input end.
- the photosensitive driver includes a fourth driving connection terminal and a fifth driving connection terminal, and the voltage difference between the fourth driving connection terminal and the fifth driving connection terminal is the first voltage;
- the image sensor further includes a second electrical connection end conversion device, the second electrical connection end conversion device includes a fourth electrical connection end, a fifth electrical connection end, and a sixth electrical connection end, the second electrical connection end conversion The device is used for switching between the fourth electrical connection end being connected to the sixth electrical connection end and the fifth electrical connection end being connected to the sixth electrical connection end; the first photosensitive unit passes through The third input terminal is electrically connected to the fourth driving connection terminal of the photosensitive driver, and the first photosensitive unit is electrically connected to the fourth electrical connection terminal of the second electrical connection terminal conversion device through the fourth input terminal.
- the second photosensitive unit is electrically connected to the fourth drive connection end of the photosensitive driver through the fifth input end, and the second photosensitive unit is electrically connected to the second electrical connection end through the sixth input end
- the fifth electrical connection end of the conversion device is electrically connected; the second electrical connection end of the conversion device is electrically connected to the fifth driving connection end of the photosensitive driver through the sixth electrical connection end, and the control of the first type
- the load voltage of the photosensitive unit is the first voltage
- controlling the load voltage of the second type of photosensitive unit to be the second voltage includes: controlling the second electrical connection terminal conversion device to switch the electrical connection terminal that is conductive with the sixth electrical connection terminal.
- the method further includes: determining the photosensitive units in the first photosensitive area and/or a photosensitive unit in a second photosensitive area, the first photosensitive area and the second photosensitive area are two photosensitive areas of the image sensor that are not connected to each other, and the plurality of photosensitive units are located in the In the first photosensitive area; control the photosensitive unit in the first photosensitive area to be electrically connected to the photosensitive driver, and cut off the electrical connection between the photosensitive unit in the second photosensitive area and the photosensitive driver.
- the image sensor further includes: a third electrical connection terminal conversion device, the third electrical connection terminal conversion device includes a seventh electrical connection terminal, an eighth electrical connection terminal, and a ninth electrical connection terminal, the The third electrical connection terminal switching device is used for switching between the electrical connection between the eighth electrical connection terminal and the seventh electrical connection terminal, and the conduction between the ninth electrical connection terminal and the seventh electrical connection terminal.
- the third electrical connection terminal conversion device is electrically connected to the photosensitive driver through the seventh electrical connection terminal, and the third electrical connection terminal conversion device is connected to the photosensitive driver through the eighth electrical connection terminal.
- the photosensitive unit is electrically connected, and the third electrical connection terminal conversion device is electrically connected to the photosensitive unit in the second photosensitive area through the ninth electrical connection terminal; the control of the photosensitive unit in the first photosensitive area to The photosensitive driver is electrically connected, and the electrical connection between the photosensitive unit in the second photosensitive area and the photosensitive driver is cut off, including: controlling the third electrical connection terminal conversion device to switch between the seventh electrical connection terminal
- the conductive electrical connection end makes the seventh electrical connection end and the eighth electrical connection end conduct, and the seventh electrical connection end and the ninth electrical connection end are disconnected.
- the method is applied to a 3D camera, the 3D camera includes a light-emitting component, the light-emitting component includes a plurality of light-emitting units, and the photosensitive units in the control of the first photosensitive area are electrically connected to the photosensitive driver.
- the method further includes: determining the light-emitting unit in the first light-emitting area and/or the light-emitting unit from the plurality of light-emitting units or a light-emitting unit in a second light-emitting region, the first light-emitting region corresponds to the first light-emitting region, and the second light-emitting region corresponds to the second light-emitting region;
- the photosensitive unit in the second photosensitive area is electrically connected with the photosensitive driver, and the electrical connection between the photosensitive unit in the second photosensitive area and the photosensitive driver is cut off, including: cooperatively controlling the light-emitting unit in the first light-emitting area and the photosensitive driver
- the light-emitting driver is electrically connected, and the light-emitting unit in the first light-emitting area is electrically connected with the light-emitting driver, and the electrical connection between the light-emitting unit in the second
- the light-emitting component further includes: a fourth electrical connection terminal conversion device, the fourth electrical connection terminal conversion device includes a tenth electrical connection terminal, an eleventh electrical connection terminal, and a twelfth electrical connection terminal, In the eleventh electrical connection terminal, when one electrical connection terminal of the twelfth electrical connection terminal is electrically connected to the tenth electrical connection terminal, the other electrical connection terminal is electrically connected to the tenth electrical connection terminal.
- the fourth electrical connection terminal is disconnected, the fourth electrical connection terminal conversion device is electrically connected to the light-emitting driver through the tenth electrical connection terminal, and the fourth electrical connection terminal converter is connected to the light-emitting driver through the eleventh electrical connection terminal.
- the light-emitting units in the first light-emitting area are electrically connected, and the fourth electrical connection terminal converter is electrically connected with the light-emitting units in the second light-emitting area through the twelfth electrical connection terminal; the control of the first light-emitting area
- the method is executed by a photosensitive driver in the image sensor, or executed by a processor in an electronic device, and the image sensor is provided in the electronic device.
- the method further includes: generating a 3D image according to the signal detected by the first type of photosensitive unit.
- the plurality of photosensitive units include 4 photosensitive unit groups, the 4 photosensitive unit groups include a target photosensitive unit group, and the photosensitive units in the target photosensitive unit group belong to the first type of photosensitive units, so The photosensitive units in the remaining 3 photosensitive unit groups in the 4 photosensitive unit groups belong to the second type of photosensitive units, the target photosensitive unit group is any photosensitive unit group in the 4 photosensitive unit groups, and the The first type photosensitive unit and the second type photosensitive unit satisfy: on the same row, there is one second type photosensitive unit spaced between any two adjacent first type photosensitive units, and on the same column, There is one photosensitive unit of the second type between any two adjacent photosensitive units of the first type, and, on the same diagonal line, between any two adjacent photosensitive units of the first type There is one photosensitive unit of the second type at intervals.
- the plurality of photosensitive units include 8 photosensitive unit groups, the 8 photosensitive unit groups include a target photosensitive unit group, and the photosensitive units in the target photosensitive unit group belong to the first type of photosensitive units, so The photosensitive units in the remaining 7 photosensitive unit groups in the 8 photosensitive unit groups belong to the second type of photosensitive units, and the target photosensitive unit group is any photosensitive unit group in the 8 photosensitive unit groups.
- the first type photosensitive unit and the second type photosensitive unit satisfy: on the same row, there are three second type photosensitive units spaced between any two adjacent first type photosensitive units, and on the same column, Three photosensitive units of the second type are spaced between any two adjacent photosensitive units of the first type, and, on the same diagonal line, between any two adjacent photosensitive units of the first type There is one photosensitive unit of the second type at intervals.
- the plurality of photosensitive units include 9 photosensitive unit groups, the 9 photosensitive unit groups include a target photosensitive unit group, and the photosensitive units in the target photosensitive unit group belong to the first type of photosensitive units, so The photosensitive units in the remaining 8 photosensitive unit groups in the 9 photosensitive unit groups belong to the second type of photosensitive units, and the target photosensitive unit group is any photosensitive unit group in the 9 photosensitive unit groups.
- the first type photosensitive unit and the second type photosensitive unit satisfy: on the same row, there are two second type photosensitive units spaced between any two adjacent first type photosensitive units, and on the same column, Two photosensitive units of the second type are spaced between any two adjacent photosensitive units of the first type, and, on the same diagonal line, between any two adjacent photosensitive units of the first type There are two photosensitive units of the second type at intervals.
- the following is another method for controlling an image sensor provided by an embodiment of the present application, including: determining a plurality of first photosensitive units and a plurality of second photosensitive units from a plurality of photosensitive units, the first photosensitive units and the second photosensitive units
- the unit satisfies: on the same row, there is one second photosensitive unit between any two adjacent first photosensitive units, and on the same column, there is one interval between any two adjacent first photosensitive units
- the electronic device 100 provided in this embodiment of the present application may include a memory, a processor (or a controller, a driver, etc.), a communication interface, and a bus.
- the memory, the processor (or the controller, the driver, etc.), and the communication interface realize the communication connection among each other through the bus.
- the memory can be read only memory (ROM), static storage device, dynamic storage device, or random access memory (RAM).
- the memory can store a program, and when the program stored in the memory is executed by the processor (or controller, driver, etc.), the processor (or controller, driver, etc.) is used to execute the image sensor shown in FIG. 26 in the embodiment of the present application the various steps of the control method.
- the processor can use a general-purpose central processing unit (CPU), microprocessor, application specific integrated circuit (ASIC), graphics processing unit (graphics processing unit, GPU) or one or more integrated circuits for executing related programs to implement the control method of the image sensor shown in FIG. 26 in the embodiment of the present application.
- CPU central processing unit
- ASIC application specific integrated circuit
- GPU graphics processing unit
- integrated circuits for executing related programs to implement the control method of the image sensor shown in FIG. 26 in the embodiment of the present application.
- the processor can also be an integrated circuit chip, which has signal processing capability.
- each step of the image sensor control method shown in FIG. 26 in the embodiment of the present application may be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
- the above-mentioned processor can also be a general-purpose processor, a digital signal processor (digital signal processing, DSP), an application-specific integrated circuit (ASIC), an off-the-shelf programmable gate array (field programmable gate array, FPGA) Or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
- DSP digital signal processor
- ASIC application-specific integrated circuit
- FPGA field programmable gate array
- the methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed.
- a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
- the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
- the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
- the storage medium is located in the memory, and the processor reads the information in the memory and, in combination with its hardware, completes the functions required to be performed by the units included in the electronic device 100 in the embodiment of the present application, or executes the image shown in FIG. 26 in the embodiment of the present application. sensor control method.
- the communication interface implements communication between the electronic device 100 and other devices or a communication network using a transceiver, such as, but not limited to, a transceiver.
- a bus may comprise a pathway for transferring information between various components of electronic device 100 (eg, memory, processor (or controller, driver, etc.), communication interface).
- components of electronic device 100 eg, memory, processor (or controller, driver, etc.), communication interface.
- processing module in the electronic device 100 may be equivalent to a processor (or a controller, a driver, etc.).
- the 3D camera 123 provided in this embodiment of the present application may include a memory, a processor (or a controller, a driver, etc.), a communication interface, and a bus.
- a memory a processor (or a controller, a driver, etc.), a communication interface, and a bus.
- the memory, processor (or controller, driver, etc.), communication interface and bus reference may be made to the memory, processor (or controller, driver, etc.), communication interface and bus in the electronic device 100, and it is unnecessary to repeat it here. Describe in detail.
- the above-mentioned manner is beneficial to reduce the crosstalk between the DToF photosensitive units. Further, it is beneficial to obtain 3D image information with clearer resolution and higher accuracy.
- the disclosed system, apparatus and method may be implemented in other manners.
- the apparatus embodiments described above are only illustrative.
- the division of the units is only a logical function division.
- multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
- Another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces,
- Indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
- each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
- the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
- the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
- the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
- the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes .
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Abstract
本申请提供了一种图像传感器(440)、3D摄像头、电子设备、图像传感器(440)的控制方法。图像传感器(440)包括:阵列排布的多个感光单元(510);感光驱动器(910),用于:驱动第一类感光单元(511)并关闭第二类感光单元(512)第一类感光单元(511)以及第二类感光单元(512)满足:在任一行/列/斜线上,任意两个相邻的第一类感光单元(511)之间间隔有至少一个第二类感光单元(512)。这有利于减小多个感光单元(510)之间的光信号串扰。
Description
本申请要求于2020年7月2日提交中国专利局、申请号为202010627901.9、申请名称为“图像传感器、3D摄像头、图像传感器的控制方法”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及电子设备领域,并且更具体地,涉及一种图像传感器、3D摄像头、图像传感器的控制方法。
为拍摄3D图像,可以通过测量光自被摄物体到三维(three-dimension,3D)摄像头的直接飞行时间(direct time of flight,DToF),得到被摄物体的三维轮廓的信息。通过DToF获取3D图像的3D摄像头还可以被称为DToF摄像头。
用户通常希望获得较高分辨率的3D图像。一种可能的方式是缩小像素尺寸,以获取高分辨率的图像。缩小像素尺寸可能会导致DToF摄像头内感光传感器之间的间距被缩小,增大了感光传感器之间的光信号串扰。因此,增大由DToF摄像头拍摄到的3D图像的分辨率是相对困难的。
发明内容
本申请提供一种图像传感器、3D摄像头、图像传感器的控制方法,目的在于减小感光单元之间的光信号串扰。
第一方面,提供了一种图像传感器,包括:多个感光单元,所述多个感光单元按照阵列的形式排布;感光驱动器,所述感光驱动器用于:从所述多个感光单元中确定多个第一类感光单元和/或多个第二类感光单元;控制所述第一类感光单元的负载电压为第一电压,控制所述第二类感光单元的负载电压为第二电压,所述第一电压高于所述感光单元的工作电压,所述第二电压低于所述感光单元的工作电压,所述第一类感光单元以及第二类感光单元满足以下任一项:在任一行上,任意两个相邻的第一类感光单元之间间隔有至少一个所述第二类感光单元,在任一列上,任意两个相邻的第一类感光单元之间间隔有至少一个所述第二类感光单元,以及在任一斜线上,任意两个相邻的第一类感光单元之间间隔有至少一个所述第二类感光单元。
“高于”可以指大于或等于。低于可以指“小于”。
可选的,图像传感器可以为3D镜头内的图像传感器。
可选的,图像传感器可以指用于检测(或捕获、接收)光的接收器。
在本申请中,通过减少来自相邻感光单元的光信号,有利于减小感光单元之间的光信号串扰。在此基础上,在光信号串扰程度基本不变的情况下,相邻感光单元之间的间距可 以被缩小,这有利于获得高分辨率图像。
结合第一方面,在第一方面的某些实现方式中,所述感光单元包括第一输入端、第二输入端;所述感光驱动器包括第一驱动连接端、第二驱动连接端、第三驱动连接端,所述第一驱动连接端与所述第二驱动连接端的电压差为所述第一电压,所述第一驱动连接端与所述第三驱动连接端的电压差为所述第二电压;所述图像传感器还包括第一电连接端转换器件,所述第一电连接端转换器件包括第一电连接端、第二电连接端、第三电连接端,所述第一电连接端转换器件用于在所述第一电连接端与所述第二电连接端导通、所述第一电连接端与所述第三电连接端导通之间切换;所述感光单元通过所述第一输入端与所述感光驱动器的第一驱动连接端电连接,所述感光单元通过所述第二输入端与所述第一电连接端转换器件的第一电连接端电连接,所述第一电连接端转换器件通过所述第二电连接端与所述感光驱动器的第二驱动连接端电连接,所述第一电连接端转换器件通过所述第三电连接端与所述感光驱动器的第三驱动连接端电连接;所述控制所述第一类感光单元的负载电压为第一电压,控制所述第二类感光单元的负载电压为第二电压,包括:控制所述第一电连接端转换器件切换与所述第一电连接端导通的电连接端,使得在所述感光单元属于所述第一类感光单元的情况下,所述第一电连接端与所述第二电连接端导通,且所述第一电连接端与所述第三电连接端断开,在所述感光单元属于所述第二类感光单元的情况下,所述第一电连接端与所述第三电连接端导通,且所述第一电连接端与所述第二电连接端断开。
可选的,所述第一电连接端转换器件用于在所述第一电连接端与所述第二电连接端导通、所述第一电连接端与所述第三电连接端导通之间切换,可以指,在所述第二电连接端、所述第三电连接端中的一个电连接端与所述第一电连接端导通的情况下,另一个电连接端与所述第一电连接端断开。
第一驱动连接端的电压值可以为V0,第二驱动连接端的电压值可以为V1,第三驱动连接端的电压值可以为V2。因此第一电压可以为|V0-V1|,第二电压可以为|V0-V2|。感光单元的工作电压可以为V3。|V0-V1|≥V3>|V0-V2|。
在本申请中,通过感光单元与对应的电连接端转换器件电连接,并且电连接端转换器件可以切换电连接通路,使得感光单元的负载电压可以被改变或调整。可选的,每个感光单元可以对应唯一的电连接端转换器件,因此对感光单元的负载电压的调整可以相对灵活。
结合第一方面,在第一方面的某些实现方式中,所述多个感光单元包括多个第一感光单元、多个第二感光单元,所述第一感光单元包括第三输入端、第四输入端;所述第二感光单元包括第五输入端、第六输入端;所述感光驱动器包括第四驱动连接端、第五驱动连接端,所述第四驱动连接端与所述第五驱动连接端的电压差为所述第一电压;所述图像传感器还包括第二电连接端转换器件,所述第二电连接端转换器件包括第四电连接端、第五电连接端、第六电连接端,所述第二电连接端转换器件用于在所述第四电连接端与所述第六电连接端导通、所述第五电连接端与所述第六电连接端导通之间切换;所述第一感光单元通过所述第三输入端与所述感光驱动器的第四驱动连接端电连接,所述第一感光单元通过所述第四输入端与所述第二电连接端转换器件的第四电连接端电连接;所述第二感光单元通过所述第五输入端与所述感光驱动器的第四驱动连接端电连接,所述第二感光单元通过所述第六输入端与所述第二电连接端转换器件的第五电连接端电连接;所述第二电连接 端转换器件通过所述第六电连接端与所述感光驱动器的第五驱动连接端电连接,所述控制所述第一类感光单元的负载电压为第一电压,控制所述第二类感光单元的负载电压为第二电压,包括:控制所述第二电连接端转换器件切换与所述第六电连接端导通的电连接端,使得所述第四电连接端与所述第六电连接端导通,且所述第五电连接端与所述第六电连接端断开,或者,所述第五电连接端与所述第六电连接端导通,且所述第四电连接端与所述第六电连接端断开。
可选的,所述第二电连接端转换器件用于在所述第四电连接端与所述第六电连接端导通、所述第五电连接端与所述第六电连接端导通之间切换,可以指,在所述第四电连接端、所述第五电连接端中的一个电连接端与所述第六电连接端导通的情况下,另一个电连接端与所述第六电连接端断开。
第四驱动连接端的电压值可以为V0,第五驱动连接端的电压值可以为V1。感光单元的工作电压可以为V3。因此第一电压可以为|V0-V1|,第二电压可以被视为0。|V0-V1|≥V3。
在本申请中,不同类型的感光单元可以与电连接端转换器件的不同电连接端电连接,并且电连接端转换器件可以切换电连接通路,从而感光单元的负载电压可以被改变或调整。可选的,多个感光单元可以与同一电连接端转换器件电连接,因此可以通过数量相对较少的电连接端转换器件,实现对感光单元的负载电压的调整。
结合第一方面,在第一方面的某些实现方式中,所述感光驱动器还用于,在所述从所述多个感光单元中确定多个第一类感光单元和/或多个第二类感光单元之前,确定第一感光区域内的感光单元和/或第二感光区域内的感光单元,所述第一感光区域与所述第二感光区域为所述图像传感器的两个互不相连的感光区域,所述多个感光单元均位于所述第一感光区域内;所述感光驱动器还用于,控制所述第一感光区域内的感光单元与所述感光驱动器电连接,切断所述第二感光区域内的感光单元与所述感光驱动器之间的电连接。
在本申请中,在电池供电能力不变的情况下,通过多个批次驱动全部感光单元,有利于增加图像传感器内感光单元的数量。
结合第一方面,在第一方面的某些实现方式中,所述图像传感器还包括:第三电连接端转换器件,所述第三电连接端转换器器件包括第七电连接端、第八电连接端、第九电连接端,所述第三电连接端转换器件用于在所述第八电连接端与所述第七电连接端导通、所述第九电连接端与所述第七电连接端导通之间切换,所述第三电连接端转换器件通过所述第七电连接端与所述感光驱动器电连接,所述第三电连接端转换器件通过所述第八电连接端与所述第一感光区域内的感光单元电连接,所述第三电连接端转换器件通过所述第九电连接端与所述第二感光区域内的感光单元电连接;所述控制所述第一感光区域内的感光单元与所述感光驱动器电连接,切断所述第二感光区域内的感光单元与所述感光驱动器之间的电连接,包括:控制所述第三电连接端转换器件切换与所述第七电连接端导通的电连接端,使得所述第七电连接端与所述第八电连接端导通、所述第七电连接端与所述第九电连接端断开。
可选的,所述第三电连接端转换器件用于在所述第八电连接端与所述第七电连接端导通、所述第九电连接端与所述第七电连接端导通之间切换,可以指,在所述第八电连接端、所述第九电连接端中的一个电连接端与所述第七电连接端导通的情况下,另一个电连接端 与所述第七电连接端断开。
在本申请中,不同感光区域可以对应电连接端转换器件的不同电连接端,并且电连接端转换器件可以切换电连接通路,从而可以灵活地驱动或关闭感光区域内的感光单元。可选的,多个感光区域可以对应同一电连接端转换器件电连接,因此可以通过数量相对较少的电连接端转换器件,实现对全部感光单元的分区域驱动。
结合第一方面,在第一方面的某些实现方式中,所述电连接端转换器件为金属氧化物半导体场效应(metal oxide semiconductor,MOS)管。
第二方面,提供了一种3D摄像头,包括:镜头,所述镜头包括上述第一方面的任一种可能的实现方式所述的图像传感器;发光部件,所述发光部件发出的光经被摄物体反射后入射至所述图像传感器,光从所述发光部件到所述图像传感器的飞行时间用于生成所述被摄物体的3D图像。
3D摄像头可以是DToF摄像头。
3D摄像头可以用于人脸识别、手势识别、三维建模等操作。
可选的,发光部件可以是用于发光的发射器。
在本申请中,由于光信号串扰的程度被降低,使得相邻感光单元之间的间距可以被缩小,因此有利于提高3D图像的拍摄分辨率。
结合第二方面,在第二方面的某些实现方式中,所述感光驱动器还用于,在所述从所述多个感光单元中确定多个第一类感光单元和/或多个第二类感光单元之前,确定第一感光区域内的感光单元和/或第二感光区域内的感光单元,所述第一感光区域与所述第二感光区域为所述图像传感器的两个互不相连的感光区域,所述多个感光单元均位于所述第一感光区域内;所述感光驱动器还用于,控制所述第一感光区域内的感光单元与所述感光驱动器电连接,切断所述第二感光区域内的感光单元与所述感光驱动器之间的电连接;所述发光部件包括:多个发光单元;发光驱动器,用于从所述多个发光单元中确定第一发光区域内的发光单元和/或第二发光区域内的发光单元,所述第一发光区域与所述第一感光区域对应,所述第二发光区域与所述第二感光区域对应;所述发光驱动器还用于,在所述第一感光区域内的感光单元与所述感光驱动器电连接,且所述第二感光区域内的感光单元与所述感光驱动器断开的情况下,控制所述第一发光区域内的发光单元与所述发光驱动器电连接,切断所述第二发光区域内的发光单元与所述发光驱动器之间的电连接。
在本申请中,在电池供电能力不变的情况下,通过多个批次驱动全部发光单元,有利于减小驱动发光部件所消耗的电量。
结合第二方面,在第二方面的某些实现方式中,所述发光部件还包括:第四电连接端转换器件,所述第四电连接端转换器器件包括第十电连接端、第十一电连接端、第十二电连接端,所述第四电连接端转换器件用于在所述第十一电连接端与所述第十电连接端导通、所述第十二电连接端与所述第十电连接端导通之间切换,所述第四电连接端转换器件通过所述第十电连接端与所述发光驱动器电连接,所述第四电连接端转换器通过所述第十一电连接端与所述第一发光区域内的发光单元电连接,所述第四电连接端转换器通过所述第十二电连接端与所述第二发光区域内的发光单元电连接;所述控制所述第一发光区域内的发光单元与所述发光驱动器电连接,切断所述第二发光区域内的发光单元与所述发光驱动器之间的电连接,包括:控制所述第四电连接端转换器件切换与所述第十电连接端导通 的电连接端,使得所述第十电连接端与所述第十一电连接端导通、所述第十电连接端与所述第十二电连接端断开。
可选的,所述第四电连接端转换器件用于在所述第十一电连接端与所述第十电连接端导通、所述第十二电连接端与所述第十电连接端导通之间切换,可以指,在所述第十一电连接端、所述第十二电连接端中的一个电连接端与所述第十电连接端导通的情况下,另一个电连接端与所述第十电连接端断开。
在本申请中,不同发光区域可以对应电连接端转换器件的不同电连接端,并且电连接端转换器件可以切换电连接通路,从而可以灵活地驱动或关闭发光区域内的发光单元。可选的,多个发光区域可以对应同一电连接端转换器件电连接,因此可以通过数量相对较少的电连接端转换器件,实现对全部发光单元的分区域驱动。
第三方面,提供了一种电子设备,包括上述第一方面的任一种可能的实现方式所述的图像传感器。
第四方面,提供了一种电子设备,包括上述第二方面的任一种可能的实现方式所述的3D摄像头;处理器,用于控制所述3D摄像头拍摄3D图像。
第五方面,提供了一种图像传感器的控制方法,所述图像传感器包括阵列排布的多个感光单元,所述方法包括:从所述多个感光单元中确定多个第一类感光单元和/或多个第二类感光单元;控制所述第一类感光单元的负载电压为第一电压,控制所述第二类感光单元的负载电压为第二电压,所述第一电压高于所述感光单元的工作电压,所述第二电压低于所述感光单元的工作电压,所述第一类感光单元以及第二类感光单元满足以下任一项:在任一行上,任意两个相邻的第一类感光单元之间间隔有至少一个所述第二类感光单元,在任一列上,任意两个相邻的第一类感光单元之间间隔有至少一个所述第二类感光单元,以及在任一斜线上,任意两个相邻的第一类感光单元之间间隔有至少一个所述第二类感光单元。
结合第五方面,在第五方面的某些实现方式中,所述感光单元包括第一输入端、第二输入端;所述感光驱动器包括第一驱动连接端、第二驱动连接端、第三驱动连接端,所述第一驱动连接端与所述第二驱动连接端的电压差为所述第一电压,所述第一驱动连接端与所述第三驱动连接端的电压差为所述第二电压;所述图像传感器还包括第一电连接端转换器件,所述第一电连接端转换器件包括第一电连接端、第二电连接端、第三电连接端,所述第一电连接端转换器件用于在所述第一电连接端与所述第二电连接端导通、所述第一电连接端与所述第三电连接端导通之间切换;所述感光单元通过所述第一输入端与所述感光驱动器的第一驱动连接端电连接,所述感光单元通过所述第二输入端与所述第一电连接端转换器件的第一电连接端电连接,所述第一电连接端转换器件通过所述第二电连接端与所述感光驱动器的第二驱动连接端电连接,所述第一电连接端转换器件通过所述第三电连接端与所述感光驱动器的第三驱动连接端电连接;所述控制所述第一类感光单元的负载电压为第一电压,控制所述第二类感光单元的负载电压为第二电压,包括:控制所述第一电连接端转换器件切换与所述第一电连接端导通的电连接端,使得在所述感光单元属于所述第一类感光单元的情况下,所述第一电连接端与所述第二电连接端导通,且所述第一电连接端与所述第三电连接端断开,在所述感光单元属于所述第二类感光单元的情况下,所述第一电连接端与所述第三电连接端导通,且所述第一电连接端与所述第二电连接端断开。
结合第五方面,在第五方面的某些实现方式中,所述多个感光单元包括多个第一感光单元、多个第二感光单元,所述第一感光单元包括第三输入端、第四输入端;所述第二感光单元包括第五输入端、第六输入端;所述感光驱动器包括第四驱动连接端、第五驱动连接端,所述第四驱动连接端与所述第五驱动连接端的电压差为所述第一电压;所述图像传感器还包括第二电连接端转换器件,所述第二电连接端转换器件包括第四电连接端、第五电连接端、第六电连接端,所述第二电连接端转换器件用于在所述第四电连接端与所述第六电连接端导通、所述第五电连接端与所述第六电连接端导通之间切换;所述第一感光单元通过所述第三输入端与所述感光驱动器的第四驱动连接端电连接,所述第一感光单元通过所述第四输入端与所述第二电连接端转换器件的第四电连接端电连接;所述第二感光单元通过所述第五输入端与所述感光驱动器的第四驱动连接端电连接,所述第二感光单元通过所述第六输入端与所述第二电连接端转换器件的第五电连接端电连接;所述第二电连接端转换器件通过所述第六电连接端与所述感光驱动器的第五驱动连接端电连接,所述控制所述第一类感光单元的负载电压为第一电压,控制所述第二类感光单元的负载电压为第二电压,包括:控制所述第二电连接端转换器件切换与所述第六电连接端导通的电连接端,使得所述第四电连接端与所述第六电连接端导通,且所述第五电连接端与所述第六电连接端断开,或者,所述第五电连接端与所述第六电连接端导通,且所述第四电连接端与所述第六电连接端断开。
结合第五方面,在第五方面的某些实现方式中,在所述从所述多个感光单元中确定多个第一类感光单元和/或多个第二类感光单元之前,所述方法还包括:确定第一感光区域内的感光单元和/或第二感光区域内的感光单元,所述第一感光区域与所述第二感光区域为所述图像传感器的两个互不相连的感光区域,所述多个感光单元均位于所述第一感光区域内;控制所述第一感光区域内的感光单元与所述感光驱动器电连接,切断所述第二感光区域内的感光单元与所述感光驱动器之间的电连接。
结合第五方面,在第五方面的某些实现方式中,所述图像传感器还包括:第三电连接端转换器件,所述第三电连接端转换器器件包括第七电连接端、第八电连接端、第九电连接端,所述第三电连接端转换器件用于在所述第八电连接端与所述第七电连接端导通、所述第九电连接端与所述第七电连接端导通之间切换,所述第三电连接端转换器件通过所述第七电连接端与所述感光驱动器电连接,所述第三电连接端转换器件通过所述第八电连接端与所述第一感光区域内的感光单元电连接,所述第三电连接端转换器件通过所述第九电连接端与所述第二感光区域内的感光单元电连接;所述控制所述第一感光区域内的感光单元与所述感光驱动器电连接,切断所述第二感光区域内的感光单元与所述感光驱动器之间的电连接,包括:控制所述第三电连接端转换器件切换与所述第七电连接端导通的电连接端,使得所述第七电连接端与所述第八电连接端导通、所述第七电连接端与所述第九电连接端断开。
结合第五方面,在第五方面的某些实现方式中,所述方法应用于3D摄像头,所述3D摄像头包括发光部件,所述发光部件包括多个发光单元,在所述控制所述第一感光区域内的感光单元与所述感光驱动器电连接,切断所述第二感光区域内的感光单元与所述感光驱动器之间的电连接之前,所述方法还包括:从所述多个发光单元中确定第一发光区域内的发光单元和/或第二发光区域内的发光单元,所述第一发光区域与所述第一感光区域对应, 所述第二发光区域与所述第二感光区域对应;所述控制所述第一感光区域内的感光单元与所述感光驱动器电连接,切断所述第二感光区域内的感光单元与所述感光驱动器之间的电连接,包括:协同控制所述第一发光区域内的发光单元与所述发光驱动器电连接,以及所述第一感光区域内的感光单元与所述感光驱动器电连接,协同切断所述第二发光区域内的发光单元与所述发光驱动器之间的电连接以及所述第二感光区域内的感光单元与所述感光驱动器之间的电连接。
结合第五方面,在第五方面的某些实现方式中,所述发光部件还包括:第四电连接端转换器件,所述第四电连接端转换器器件包括第十电连接端、第十一电连接端、第十二电连接端,所述第十一电连接端,在所述第十二电连接端中的一个电连接端与所述第十电连接端导通的情况下,另一个电连接端与所述第十电连接端断开,所述第四电连接端转换器件通过所述第十电连接端与所述发光驱动器电连接,所述第四电连接端转换器通过所述第十一电连接端与所述第一发光区域内的发光单元电连接,所述第四电连接端转换器通过所述第十二电连接端与所述第二发光区域内的发光单元电连接;所述控制所述第一发光区域内的发光单元与所述发光驱动器电连接,切断所述第二发光区域内的发光单元与所述发光驱动器之间的电连接,包括:控制所述第四电连接端转换器件切换与所述第十电连接端导通的电连接端,使得所述第十电连接端与所述第十一电连接端导通、所述第十电连接端与所述第十二电连接端断开。
结合第五方面,在第五方面的某些实现方式中,所述方法由所述图像传感器内的感光驱动器执行,或者由电子设备内的处理器执行,所述图像传感器设置于所述电子设备内。
结合第五方面,在第五方面的某些实现方式中,所述方法还包括:根据所述第一类感光单元检测到的信号,生成3D图像。
第六方面,提供了一种图像处理器,包括:多个感光单元,所述多个感光单元包括多个第一类感光单元以及多个第二类感光单元,所述多个第一类感光单元与所述多个第二类感光单元按照阵列的形式排布,形成具有M1行、M2列的感光单元阵列,M1、M2均为大于1的整数,其中,所述多个第一类感光单元与所述多个第二类感光单元满足以下任一项:在任一行上,任意两个相邻的第一类感光单元之间间隔有至少一个所述第二类感光单元,在任一列上,任意两个相邻的第一类感光单元之间间隔有至少一个所述第二类感光单元,以及在任一斜线上,任意两个相邻的第一类感光单元之间间隔有至少一个所述第二类感光单元;所述第一类感光单元的两个输入端分别与第一驱动连接端、第二驱动连接端电连接,所述第一驱动连接端的电压值为第一电压,所述第二驱动连接端的电压值为第二电压,所述第一电压与所述第二电压的电压差高于所述感光单元的工作电压,所述第二类感光单元的两个输入端分别与第三驱动连接端、第四驱动连接端电连接,所述第三驱动连接端的电压值为第三电压,所述第四驱动连接端的电压值为第四电压,所述第三电压与所述第四电压的电压差低于所述感光单元的工作电压。
结合第六方面,在第六方面的某些实现方式中,所述第一驱动连接端与所述第三驱动连接端为相同的驱动连接端,所述第一电压与所述第三电压相同。
结合第六方面,在第六方面的某些实现方式中,所述多个感光单元包括目标感光单元,所述目标感光单元包括第一输入端、第二输入端,所述第一输入端与所述第一驱动连接端电连接;所述图像传感器还包括:第一电连接端转换器件,所述第一电连接端转换器件的 一端与所述第二输入端电连接,所述第一电连接端转换器件的另一端与所述第二驱动连接端或所述第四驱动连接端电连接,在所述目标感光单元为所述第一类感光单元的情况下,第一电连接端转换器件与所述第二驱动连接端电连接,在所述目标感光单元为所述第二类感光单元的情况下,第一电连接端转换器件与所述第四驱动连接端电连接。
结合第六方面,在第六方面的某些实现方式中,所述图像传感器包括:目标感光驱动电路,所述目标感光驱动电路为所述多个感光单元的驱动电路;感光驱动器,所述感光驱动器为所述多个感光单元的驱动电源;第二电连接端转换器件,所述第二电连接端转换器器件的一端与所述目标感光驱动电路电连接,所述第二电连接端转换器器件的另一端与所述感光驱动器电连接或者处于断开状态。
可选的,在所述第二电连接端转换器器件与所述感光驱动器电连接的情况下,所述感光驱动器通过所述目标感光驱动电路驱动所述多个感光单元;在所述第二电连接端转换器件处于断开状态的情况下,所述多个感光单元均处于未被驱动的状态。
结合第六方面,在第六方面的某些实现方式中,所述电连接端转换器件为金属氧化物半导体场效应MOS管。
第七方面,提供了一种3D摄像头,包括:镜头,所述镜头包括图像传感器,所述图像传感器包括目标感光驱动电路、感光驱动器,第二电连接端转换器件,所述目标感光驱动电路为所述多个感光单元的驱动电路,所述感光驱动器为所述多个感光单元的驱动电源,所述第二电连接端转换器器件的一端与所述目标感光驱动电路电连接,所述第二电连接端转换器器件的另一端与所述感光驱动器电连接或者处于断开状态;发光部件,所述发光部件发出的光经被摄物体反射后入射至所述图像传感器,光从所述发光部件到所述图像传感器的飞行时间用于生成所述被摄物体的3D图像,所述发光部件包括多个发光单元、目标感光驱动电路、发光驱动器,第三电连接端转换器件,所述目标发光驱动电路为所述多个发光单元的驱动电路,所述发光驱动器为所述多个发光单元的驱动电源,所述第三电连接端转换器器件的一端与所述目标发光驱动电路电连接,在所述第二电连接端转换器器件的另一端与所述感光驱动器电连接的情况下,所述第三电连接端转换器器件的另一端与所述发光驱动器电连接,在所述第二电连接端转换器器件的另一端与所述感光驱动器处于断开状态的情况下,所述第三电连接端转换器器件的另一端与所述发光驱动器处于断开状态。
图1是一种电子设备的示意性结构图。
图2是一种3D摄像头的应用场景的示意图。
图3是一种合成2D图像、3D图像的示意图。
图4是另一种3D摄像头的应用场景的示意图。
图5是又一种3D摄像头的应用场景的示意图。
图6是还一种3D摄像头的应用场景的示意图。
图7是一种3D镜头的示意性结构图。
图8是一种图像传感器的示意性结构图。
图9是一种驱动电路的示意性结构图。
图10是一种感光单元的感光原理图。
图11是一种多个感光单元的示意性结构图。
图12是本申请实施例提供的一种图像处理器的示意性结构图。
图13是本申请实施例提供的一种图像处理器的示意性结构图。
图14是本申请实施例提供的一种驱动电路的示意性结构图。
图15是本申请实施例提供的另一种驱动电路的示意性结构图。
图16是本申请实施例提供的一种分批驱动感光单元的示意性结构图。
图17是本申请实施例提供的另一种分批驱动感光单元的示意性结构图。
图18是本申请实施例提供的一种图像传感器和发光部件的控制电路的示意性结构图。
图19是本申请实施例提供的另一种图像传感器和发光部件的控制电路的示意性结构图。
图20是本申请实施例提供的一种感光区域的示意性结构图。
图21是本申请实施例提供的一种感光单元的驱动方法的示意图。
图22是本申请实施例提供的一种感光区域的示意性结构图。
图23是本申请实施例提供的一种感光单元的驱动方法的示意图。
图24是本申请实施例提供的一种感光区域的示意性结构图。
图25是本申请实施例提供的一种感光单元的驱动方法的示意图。
图26是本申请实施例提供的一种图像传感器的控制方法的示意性流程图。
下面将结合附图,对本申请中的技术方案进行描述。
图1示出了一种电子设备100的结构示意图。电子设备100可以为具有摄像或拍照功能的电子设备,例如手机、平板电脑、电视(或智慧屏)、手提电脑、摄像机、录像机、照相机等。为方便理解,本申请实施例以电子设备100是手机为例进行说明。
电子设备100可以包括显示屏10和壳体。壳体可以包括边框和后盖20。边框可以环绕在显示屏10的外周,且边框可以环绕在后盖20的外周。显示屏10与后盖20之间可以存在一定间隔。显示屏10可以相对于后盖20平行设置。
在电子设备100的显示屏10上可以设置前置摄像头模组(camera compact module,CCM)110。如图1中的左图所示,前置摄像头模组110可以被安装在显示屏10的左上部。前置摄像头模组110例如可以用于自拍。
在电子设备100的后盖20上可以设置后置摄像头模组120。如图1中的右图所示,后置摄像头模组120可以被安装在后盖20的左上部。后置摄像头模组120例如可以用于拍摄电子设备100周围的景象。
应理解,图1示出的前置摄像头模组110和后置摄像头模组120的安装位置仅仅是示意性的,本申请对摄像头模组的安装位置可以不作限定。在一些其他的实施例中,前置摄像头模组110和后置摄像头模组120也可以被安装在电子设备100上的其他位置。例如前置摄像头模组110可以被安装在显示屏10的中上部或右上部。又如,后置摄像头模组120可以被安装在后盖20的中上部或右上部。又如,前置摄像头模组110或后置摄像头模组 120可以被设置在电子设备100内的可移动部件上。通过移动该可移动部件,该可移动部件可以被隐藏在电子设备100内,或者可以伸出电子设备100外。
应理解,图1示出的前置摄像头模组110和后置摄像头模组120的安装个数仅仅是示意性的,本申请对摄像头模组的安装个数可以不作限定。电子设备100可以包括数量更多或更少的摄像头模组。
下面以图1中的后置摄像头模组120为例,并结合图2说明本申请实施例提供的一种摄像头模组的应用场景。
如图2所示,后置摄像头模组120例如可以包括主二维(two dimensions,2D)摄像头121、辅2D摄像头122。主2D摄像头121、辅2D摄像头122均可以用于拍摄被摄物体30的2D轮廓、2D图案、颜色(然后灰度、色彩等)等2D图像信息,得到被摄物体30的2D图像(如图3中的31所示)。联合使用主2D摄像头121与辅2D摄像头122,有利于获取高分辨率、高质量的2D图像。
如图2所示,后置摄像头模组120例如还可以包括第一发光部件124。第一发光部件124例如可以位于主2D摄像头121或辅2D摄像头122附近。第一发光部件124例如可以发射可见光。第一发光部件124可以为主2D摄像头121和/或辅2D摄像头122提供光照。例如,在夜晚或光较暗的场景下,第一发光部件124发出的光可以照射在被摄物体30上,从而可以增大主2D摄像头121和/或辅2D摄像头122捕获到的、来自被摄物体30的光强。
如图2所示,后置摄像头模组120还可以包括3D摄像头123。3D摄像头123可以用于拍摄被摄物体30的3D轮廓,得到被摄物体30的3D图像(如图3中的32所示)。
3D摄像头123可以包括3D镜头1231、第二发光部件1232。第二发光部件1232例如可以位于3D镜头1231附近。第二发光部件1232例如可以发射红外光。在本申请中,发光部件可以是用于发光的发射器;镜头内的图像传感器可以是用于检测(或捕获、接收)光的接收器。
被摄物体30的不同位置到3D镜头1231的距离可以不同,光从被摄物体30的不同位置到3D镜头1231的飞行时间可以不同。因此,在一个示例中,通过测量光自被摄物体30到3D镜头1231的直接飞行时间(direct time of flight,DToF),可以得到被摄物体30的3D轮廓信息(或深度信息)。
在一个示例中,第二发光部件1232与3D镜头1231联合使用,以测量光在电子设备100与被摄物体30之间的DToF。如图2所示,第二发光部件1232发出的光可以经被摄物体30反射并射入3D镜头1231。该第二发光部件1232与3D镜头1231之间的距离为距离A,该第二发光部件1232与被摄物体30之间的距离为距离B,被摄物体30与3D镜头1231之间的距离为距离C。该距离A可以远小于该距离B、距离C,即相对于该距离B、距离C,该距离A可以忽略不计。也就是说,B≈C。因此,可以通过测量光自第二发光部件1232射出到射入3D镜头1231的DToF,来近似确定光自被摄物体30到3D镜头1231的DToF,进而可以获取包含被摄物体30的3D轮廓信息的3D图像。
通过合成上述2D图像(如图3中的31)和上述3D图像(如图3中的32),可以得到既包括3D轮廓信息、又包括2D图像信息的生动的3D图像(如图3中的33)。应理解,图3示出的图像31、图像32、图像33仅仅是示意性的,本申请对图像的具体参数(如分辨率、像素尺寸、三维模型粒度等)可以不作限定。
可以理解的是,本申请实施例示意的结构并不构成对电子设备100的具体限定。在本申请另一些实施例中,电子设备100可以包括比图示更多或更少的部件。例如,电子设备100可以包括比图示更多或更少的摄像头。又如,电子设备100可以包括比图示更多或更少的发光部件。
在一个示例中,后置摄像头模组120可以仅包括3D摄像头123,其中,该3D摄像头123还可以具有拍摄2D图像的能力。也就是说,电子设备100可以通过3D摄像头123,拍摄到既包括2D图像信息、又包括3D轮廓信息的生动的3D图像。
在一个示例中,2D摄像头可以与3D摄像头复用同一发光部件。例如,后置摄像头模组120可以仅包括第二发光部件1232。
图4是本申请实施例提供的另一种3D摄像头123的应用场景。电子设备100可以通过3D摄像头123执行与人脸识别相关的操作。
在一种可能的场景中,电子设备100可以通过前置摄像头模组110中的3D摄像头123,来获取人脸的3D轮廓信息。电子设备100可以将获取到的3D轮廓信息与电子设备100存储的3D轮廓模板进行匹配。若匹配度相对较高,则电子设备100可以确定人脸识别成功,并执行与人脸识别成功对应的操作(如解锁屏幕);若匹配度相对较低,则电子设备100可以确定人脸识别失败,并执行与人脸识别失败对应的操作(如显示密码输入界面)。
图5是本申请实施例提供的又一种3D摄像头123的应用场景。电子设备100可以通过3D摄像头123获取用户的3D手势,并执行与该3D手势相应的操作。
在一种可能的场景中,电子设备100可以在显示屏10上显示提示信息“是否删除文件?”,以询问用户是否将文件删除。用户可以通过3D确认手势34,指示电子设备100将文件删除。在用户做出3D确认手势34的情况下,电子设备100可以在显示屏10上显示提示信息“请保持当前手势,1s后可删除文件”,指示用户保持3D确认手势34至少1s。在电子设备100检测到用户保持3D确认手势34的时长达到1s后,电子设备100可以将文件删除。可选的,如图5所示,电子设备100可以在显示屏10的左下角显示3D摄像头123当前拍摄到的3D手势。
在其他可能的场景中,用户可以使用电子设备100的游戏功能,并且,通过3D手势与电子设备100进行交互,以实现相应的游戏操作。
图6是本申请实施例提供的还一种3D图像的应用场景。电子设备100可以通过3D摄像头123建立建筑、家居、物件等实体的三维模型。
在一种可能的场景中,用户可以使用3D摄像头(图6未示出)拍摄房间内的场景。房间内的场景例如可以包括房间内的设备、家具、房间架构等。电子设备100可以根据拍摄到3D图像,生成相应的家居三维模型35。如图6所示,电子设备可以在显示屏10上显示该家居三维模型35。因此,用户可以直观地观察房间的三维缩影。
另外,在用户准备在房间内增添新的物品时,用户可以操作电子设备100,以生成该物品的三维模型以及包含该物品的家居三维模型。用户可以操作电子设备100,以调整物品在家居三维模型中的摆放角度、摆放位置等。因此,用户可以预览在该物品被添置在房间后该房间的视觉效果。
图7是本申请实施例提供的一种3D镜头1231的示意性结构图。其中,该3D镜头1231可以被固定在电子设备100内的安装座460上。该3D镜头1231可以是固定焦距镜头(或 定焦镜头),或变焦镜头。该3D镜头1231还可以是短焦镜头、中长焦镜头、长焦镜头等。
3D镜头1231可以包括镜筒410。镜筒410的一端设置有进光口,3D镜头1231外的光可以穿过该进光孔射入该3D镜头1231。图7示出的镜筒410仅仅是示意性的,本申请对镜筒410的结构、尺寸等可以不作限定。
3D镜头1231还可以包括设置在镜筒410内的一个或多个透镜420(lens)。来自镜筒410的进光口的光可以穿过镜筒410内的透镜420。图7示出的透镜仅仅是示意性的,本申请对透镜数量、透镜结构等可以不作限定。透镜420可以是塑料(plastic)透镜,也可以为玻璃(glass)透镜。透镜420可以是球面透镜或非球面透镜。
3D镜头1231还可以包括自动对焦驱动组件430(又可以被称作马达)。自动对焦驱动组件430可以用于控制镜头1231的视场角、自动对焦、光学防抖等。自动对焦驱动组件430可以与镜筒410的远离进光口的一端组装。自动对焦驱动组件430例如还可以包括设置在壳体内的驱动集成电路(图7未示出)等。
3D镜头1231还可以包括图像传感器440(sensor)。图像传感器440可以是一种半导体芯片。在本申请实施例中,图像传感器440还可以被称为DToF传感器。图像传感器440的表面上设有几十万到几百万的光电二极管(例如单光子雪崩二极管(single photon avalanche diode,SPAD))。光电二极管在受到光照射时会产生电荷,从而将光信号转换为电信号。图像传感器440例如可以是电荷耦合元件(charge coupled device,CCD)、互补金属氧化物导体器件(complementary metal-oxide semiconductor,CMOS)等。如图7所示,图像传感器440例如可以被固定在电子设备100的安装座460上。
3D镜头1231还可以包括滤光片450。滤光片450可以消除投射到图像传感器440上的不必要的光(如可见光),防止图像传感器440产生波纹等图像缺陷,以提高其有效分辨率和图像还原性。
3D镜头1231还可以包括例如线路板(图7未示出)、陀螺仪(图7未示出)等。例如,线路板可以是柔性电路板(flexible printed circuit,FPC)或印刷电路板(printed circuit board,PCB)。线路板例如可以用于将图像传感器440获取到的电信号传输至电子设备100上的处理器或控制器、感光驱动器等。陀螺仪例如可以用于提高3D镜头1231防抖性能。
3D镜头1231的工作原理可以是,经被摄物体反射的光可以穿过镜筒410内的一个或多个透镜420、自动对焦驱动组件430,投射到图像传感器440的表面。为了获得清楚、无畸变的图像,可以利用透镜成像原理,通过自动对焦驱动组件430驱动镜筒410,使镜筒410内的透镜420移动至合适的位置。从而,光可以在图像传感器440上聚焦,形成清晰的光学图像。图像传感器440可以将光信号转为电信号,从而获得被摄物体的图像信息。
图8是本申请实施例提供的一种图像传感器440的示意性结构图。
图像传感器440可以包括多个感光单元510,该多个感光单元510可以按照阵列的形式排布,形成N1×N2感光单元阵列,N1、N2均为大于1的整数。感光单元510例如可以包括SPAD。
一个像素单元可以对应一个或多个感光单元510。结合上文所述的3D摄像头的工作原理,电子设备或电子设备内的处理器(或控制器)可以根据至少一个目标感光单元510所检测到的信号,确定3D图像中的目标像素单元的图像信息,其中,所述目标像素单元 可以对应所述至少一个目标感光单元510。电子设备或电子设备内的处理器(或控制器)可以汇总N1×N2感光单元阵列中每个感光单元510所检测到的信号,确定被摄物体的3D图像信息。
在一个示例中,感光驱动器可以一次性驱动图像传感器440内的全部感光单元510。
在另一个示例中,感光驱动器可以分批次驱动图像传感器440内的感光单元510,即一次仅驱动图像传感器440的某个感光区域内的全部感光单元510。
在一个可能的场景中,电子设备的电源可以来自电池,且电池的供电量相对有限。在此情况下,感光驱动器可能无法控制图像传感器440内的全部感光单元510被驱动。
例如,在N1×N2感光单元阵列所形成的感光区域内,存在如图8所示的目标感光区域520。图8的右侧示出了目标感光区域520的一种可能的局部放大图。该目标感光区域520内的感光单元阵列可以是该N1×N2感光单元阵列的一部分。在目标驱动批次内,该感光驱动器可以驱动目标感光区域520内的全部感光单元510,N1×N2感光单元阵列中的其他感光单元510可以处于未被驱动的状态。图8中填充有斜线的矩形可以表示当前被驱动的感光单元510。如图8所示,当前目标感光区域520内的全部感光单元510可以均处于被驱动的状态。
图9示出了的一种与目标感光区域520对应的驱动电路600的示意性结构图。应理解,图9示出的驱动电路600仅仅是示意性的,本申请对驱动电路600的具体形式可以不作限定。例如,与目标感光区域520对应的驱动电路600可以包括数量更多或更少的电子元件。
驱动电路600可以为该目标感光区域520内的多个感光单元510供电。其中,感光单元510的第一输入端591可以与电压值为V0的驱动连接端(以下简称为“V0驱动连接端”)电连接,感光单元510的第二输入端592可以与电压值为V1的驱动连接端(以下简称为“V1驱动连接端”)或电压值为V2的驱动连接端(以下简称为“V2驱动连接端”)电连接。感光单元510的工作电压例如可以为V3。
在V0>0的情况下,V0>V2>V1,并且|V0-V1|≥V3>|V0-V2|。在V0<0的情况下,V0<V2<V1,并且|V0-V1|≥V3>|V0-V2|。也就是说,在感光单元510的第一输入端591与V0驱动连接端电连接,且感光单元510的第二输入端592与V1驱动连接端电连接的情况下,感光单元510的负载电压大于感光单元510的工作电压,因此感光单元510可以正常工作;此时感光单元510可以处于被驱动的状态。而在感光单元510的第一输入端591与V0驱动连接端电连接,且感光单元510的第二输入端592与V2驱动连接端电连接的情况下,感光单元510的负载电压小于感光单元510的工作电压,因此感光单元510可以无法正常工作;此时感光单元510可以处于未被驱动的状态。
在一个示例中,可以调整与感光单元510的第二输入端592电连接的驱动连接端的负载电压(如从V1电压值调整至V2电压值,或者从V2电压值调整至V1电压值),以控制感光单元510处于被驱动或未被驱动的状态。
在另一个示例中,如图9所示,驱动电路还可以包括电连接端转换器件610,电连接端转换器件610可以用于切换与感光单元510的第二输入端592电连接的驱动连接端。电连接端转换器件可以是金属氧化物半导体场效应(metal oxide semiconductor,MOS)管。例如,MOS管可以从感光单元510的第二输入端592与V1驱动连接端电连接,切换至感光单元510的第二输入端592与V2驱动连接端电连接,或者从感光单元510的第二输入 端592与V2驱动连接端电连接,切换至感光单元510的第二输入端592与V1驱动连接端电连接。
图10示出了感光单元的感光原理图。图10示出了相邻设置的3个感光单元,分别为感光单元5101、感光单元5102、感光单元5103。来自被摄物体的光(如图10中的实线箭头所示)可以照射在感光单元5101、感光单元5102、感光单元5103上。感光单元内可以发生光电转换效应,并在感光单元内形成电子-空穴对,从而感光单元可以将光信号转换为电信号(如图10中的虚线箭头所示)。例如,照射在感光单元5102上的光信号可以在感光单元5102内被转换为电流I
0。
在一个示例中,为防止感光单元内的电子游离至相邻感光单元,即为减少相邻的两个感光单元之间的电信号串扰,一种可能的方式是,可以在相邻的两个感光单元之间设置深槽隔离(deep trench isolation,DTI)(如图10中填充有点阵的矩形所示)。如图10所示,感光单元5101与感光单元5102之间可以设置深槽隔离711,感光单元5102与感光单元5103之间可以设置深槽隔离712。
然而,感光单元内的一小部分电子-空穴对可以复合形成光信号。也就是说,在感光单元内,除了可以发生光信号到电信号的转换,还可能发生一小部分电信号到光信号的转换。由于硅加工工艺的限制,深槽隔离通常无法相对有效地阻挡来自相邻感光单元的光信号。如图10所示,感光单元5101内的电子-空穴对可以复合形成光信号λ
1,该光信号λ
1可以穿过深槽隔离入射至感光单元5102,并在感光单元5102内被转换为电子-空穴对,从而有一定概率产生与光信号λ
1对应的电流I
1。感光单元5103内的电子-空穴对可以复合形成光信号λ
2,该光信号λ
2可以穿过深槽隔离入射至感光单元5102,并在感光单元5102内被转换为电子-空穴对,从而有一定概率产生与光信号λ
2对应的电流I
2。
最终,感光单元5102除了会将来自被摄物体的光信号转换为电流I
0,还可能会将串扰光信号转换为电流(如上述电流I
1、I
2)。以SPAD为例,SPAD通常具有相对较高的光敏性,对于相对微弱的光信号也可能触发相对大的电流。可以看出,相邻感光单元之间可能存在光信号的串扰;该光信号的串扰可能会影响感光单元的感光精确度。
图11示出了相邻感光单元之间的一种光信号串扰程度。图11所示的多个感光单元可以是图8中虚线框内的多个感光单元。如图11所示,与感光单元810相邻的感光单元有感光单元801、感光单元802、感光单元803、感光单元804、感光单元805、感光单元806、感光单元807、感光单元808。
感光单元802、感光单元810、感光单元807可以为同一列上的多个感光单元。位于同一列上的相邻两个感光单元之间的间距例如可以是感光单元的行间距a。
感光单元804、感光单元810、感光单元805可以为同一行上的多个感光单元。位于同一行上的相邻两个感光单元之间的间距例如可以是感光单元的列间距b。
感光单元801、感光单元810、感光单元808可以为同一斜线上的多个感光单元。感光单元803、感光单元810、感光单元806为同一斜线上的多个感光单元。位于同一斜线上的相邻两个感光单元之间的间距c例如可以是
需要说明的是,斜线可以是相对于行、列均倾斜设置的线。该斜线可以满足如下定义:在行上存在与目标感光单元(如图11中的感光单元810)相邻的行相邻感光单元(如图11中的感光单元804),在列上存在与目标感光单元相邻的列相邻感光单元(如图11中 的感光单元802),在斜线上存在与目标感光单元相邻的斜相邻感光单元(如图11中的感光单元801),该行相邻感光单元可以与斜相邻感光单元在同一列上相邻,该列相邻感光单元可以与斜相邻感光单元在同一行上相邻。
从感光单元之间的间距可以看出,同一行或同一列上的相邻两个感光单元之间的间距,可以略小于同一斜线上的相邻两个感光单元之间的间距。因此,同一行或同一列上的相邻两个感光单元之间的光串扰,可以略大于同一斜线上的相邻两个感光单元之间的光串扰。
通过实验或模拟的方式,可以确定相邻两个感光单元之间的光串扰程度。在一种可能的场景下,同一行或同一列上的相邻两个感光单元之间的光串扰程度可以约为3%。同一斜线上的相邻两个感光单元之间的光串扰程度可以约为0.75%。那么,图11中的感光单元810可能承受的光串扰程度可以约为3%×4+0.75%×4=15%。
图12是本申请实施例提供的一种图像处理器440的示意性结构图。与图8所示的图像传感器440的不同之处可以包括,在图像传感器440的目标感光区域520内,可以包括当前被驱动的多个第一类感光单元511以及当前未被驱动的多个第二类感光单元512。在图12以及后续附图中,填充有斜线的矩形可以表示当前被驱动的第一类感光单元511。在图12以及后续附图中,空白矩形可以表示当前未被驱动的第二类感光单元512。
在图12所示的示例中,目标感光区域520内的感光单元510的驱动方式可以满足:在同一行上,任意两个相邻的第一类感光单元511之间可以间隔有1个第二类感光单元512;在同一列上,任意两个相邻的第一类感光单元511之间间隔有1个第二类感光单元512;并且,在同一斜线上,任意两个相邻的第一类感光单元511之间可以不间隔第二类感光单元512。
任一第一类感光单元511所承受到的光串扰主要来自多个斜相邻感光单元(斜相邻感光单元可以指在斜线上相邻的感光单元510)。结合图11所示的示例,在一种可能的场景下,该任一第一类感光单元511所承受到的光串扰程度可以约为0.75%×4=3%。
假设在目标感光驱动批次内,目标感光区域520内的每个感光单元510均可以被驱动。因此,该目标感光驱动批次可以包括多个感光驱动子批次。也就是说,每个感光驱动子批次仅驱动目标感光区域520内的部分感光单元,通过多个感光驱动子批次可以实现目标感光区域520内每个感光单元510均被驱动。
该多个感光驱动子批次可以包括第1感光驱动子批次和第2感光驱动子批次。针对第1感光驱动子批次,图12示出了目标感光区域520内的多个感光单元510的状态(包括被驱动的状态和未被驱动的状态)。针对第2感光驱动子批次,图13示出了目标感光区域520内的多个感光单元510的状态(包括被驱动的状态和未被驱动的状态)。在图12、图13所示的示例中,可以通过两个感光驱动子批次,使得目标感光区域520内的每个感光单元510均可以被驱动。
可以看出,目标感光区域520内的多个感光单元510包括多个第1感光单元、多个第2感光单元。在第1感光驱动子批次内,该多个第1感光单元被驱动、该多个第2感光单元未被驱动;因此,在第1感光驱动子批次内,该第1感光单元属于第一类感光单元511,该第2感光单元属于第二类感光单元512。在第2感光驱动子批次内,该多个第1感光单元未被驱动、该多个第2感光单元被驱动;因此,在第2感光驱动子批次内,该第1感光 单元属于第二类感光单元512,该第2感光单元属于第一类感光单元511。
也就是说,在第1感光驱动子批次内已经被驱动的第一类感光单元511,可以是在第2感光驱动子批次内未被驱动的第二类感光单元512。并且,在第1感光驱动子批次内未被驱动的第二类感光单元512,可以是在第2感光驱动子批次内被驱动的第一类感光单元511。
在一个示例中,一个像素单元可以对应一个感光单元510。
假设存在一个与目标感光区域520对应的目标像素区域。该目标像素区域可以包括与该多个感光单元510一一对应的多个像素单元。
在图12所示的第1感光驱动子批次内,电子设备或电子设备内的处理器(或控制器)可以获取该目标像素区域内的第一部分像素单元的图像信息,该第一部分像素单元可以与该第1感光驱动子批次内的第一类感光单元511对应。
在图13所示的第2感光驱动子批次内,电子设备或电子设备内的处理器(或控制器)可以获取该目标像素区域内的第二部分像素单元的图像信息,该第二部分像素单元可以与该第2感光驱动子批次内的第一类感光单元511对应。
因此,在图12、图13所示的示例中,该目标像素区域的图像信息可以通过两个感光驱动批次得到。
在一个示例中,一个像素单元可以对应多个感光单元510。
假设存在目标像素单元,该目标像素单元对应目标感光区域520内的多个感光单元510。由于在图12、图13所示的示例中,仅通过一个感光驱动子批次,可能无法获得目标像素单元的完整的图像信息。可以通过如上所述的第1感光驱动子批次和第2感光驱动子批次,得到目标感光区域520内的全部感光单元510的检测信号。因此,电子设备或电子设备内的处理器(或控制器)可以根据第1感光驱动子批次检测到的信号以及第2感光驱动子批次检测到的信号,确定目标像素单元的图像信息。
图14是本申请实施例提供的一种与目标感光区域520对应的驱动电路600的示意性结构图。应理解,图14示出的驱动电路600仅仅是示意性的,本申请对驱动电路600的具体形式可以不作限定。例如,驱动电路600可以包括数量更多或更少的电子元件。
图像传感器内的感光驱动器(图14未示出)可以通过驱动电路600为感光单元510供电。感光驱动器可以包括第一驱动连接端911、第二驱动连接端912、第三驱动连接端913;第一驱动连接端911的电压值可以为V0,第二驱动连接端912的电压值可以为V1,第三驱动连接端913的电压值可以为V2。感光单元510的工作电压可以为V3。在V0>0的情况下,V0>V2>V1,并且|V0-V1|≥V3>|V0-V2|。在V0<0的情况下,V0<V2<V1,并且|V0-V1|≥V3>|V0-V2|。
驱动电路600可以包括多个感光单元510,以及与该多个感光单元510一一对应的多个第一电连接端转换器件610。第一电连接端转换器件610可以是MOS管。感光单元510可以与对应的第一电连接端转换器件610串联连接。
感光单元510可以包括第一输入端521、第二输入端522。第一输入端521可以与感光驱动器的第一驱动连接端911电连接。
第一电连接端转换器件610可以包括第一电连接端611、第二电连接端612、第三电连接端613。第一电连接端611可以与感光单元510的第二输入端522电连接。第一电连 接端转换器件610的第二电连接端612可以与感光驱动器的第二驱动连接端912电连接。第一电连接端转换器件610的第三电连接端613可以与感光驱动器的第三驱动连接端913电连接。
第一电连接端转换器件610可以切换与第一电连接端611导通的电连接端,使得第一电连接端611与第二电连接端612导通(且第一电连接端611与第三电连接端613断开),或者第一电连接端611与第三电连接端613导通(且第一电连接端611与第二电连接端612断开)。从而,第一电连接端转换器件610可以调整感光单元的负载电压。
例如,当第一电连接端转换器件610的第一电连接端611与第二电连接端612导通时,感光单元510的负载电压可以是|V0-V1|,此时感光单元510的负载电压大于感光单元510的工作电压,因此感光单元510可以正常工作,即处于被驱动的状态。又如,当第一电连接端611与第三电连接端613导通时,感光单元510的负载电压可以是|V0-V2|,此时感光单元510的负载电压小于感光单元510的工作电压,因此感光单元510可以无法正常工作,即处于未被驱动的状态。
结合图12、图13所示的示例,图14示出了第一类感光单元511和第二类感光单元512的具体电连接方式。第一类感光单元511的负载电压可以是|V0-V1|,第二类感光单元512的负载电压可以是|V0-V2|。从图14可以看出,在同一行上,任意两个相邻的感光单元510的电连接方式不同。并且,在同一列上,任意两个相邻的感光单元510的电连接方式不同。
图15是本申请实施例提供的一种与目标感光区域520对应的驱动电路600的示意性结构图。应理解,图15示出的驱动电路600仅仅是示意性的,本申请对驱动电路600的具体形式可以不作限定。例如,驱动电路600可以包括数量更多或更少的电子元件。
图像传感器内的感光驱动器(图14未示出)可以通过驱动电路600为感光单元510供电。感光驱动器可以包括第四驱动连接端914、第五驱动连接端915;第四驱动连接端914的电压值可以为V0,第五驱动连接端915的电压值可以为V1。感光单元510的工作电压可以为V3,|V0-V1|≥V3。
驱动电路600可以包括多个感光单元510。每个感光单元510的第三输入端523可以与感光驱动器的第四驱动连接端914电连接。多个感光单元510可以包括多个第1感光单元510a、多个第2感光单元510b。第1感光单元510a可以包括第三输入端523a、第四输入端524a。第2感光单元510b可以包括第五输入端523b、第六输入端524b。第三输入端523a、第五输入端523b均可以与感光驱动器的第四驱动连接端914电连接。
第二电连接端转换器件620可以包括第四电连接端621、第五电连接端622、第六电连接端623。第四电连接端621可以与第1感光单元510a的第四输入端524a电连接。第二电连接端转换器件620的第五电连接端622可以与第2感光单元510b的第六输入端524b电连接。第二电连接端转换器件620的第六电连接端623可以与感光驱动器的第五驱动连接端915电连接。
第二电连接端转换器件620可以切换与第六电连接端623导通的电连接端,使得第六电连接端623与第四电连接端621导通(且第六电连接端623与第五电连接端622断开),或者第六电连接端623与第五电连接端622导通(且第六电连接端623与第四电连接端621断开)。从而,第二电连接端转换器件620可以调整感光单元510的负载电压。
例如,当第二电连接端转换器件620的第六电连接端623与第四电连接端621导通时,第1感光单元510a的负载电压可以是|V0-V1|,此时第1感光单元510a的负载电压大于感光单元510的工作电压,因此第1感光单元510a可以正常工作,即处于被驱动的状态;与此同时,第六电连接端623与第五电连接端622断开;第2感光单元510b处于断开状态(感光单元510的负载电压可以近似视为0),第2感光单元510b的负载电压小于感光单元510的工作电压,因此第2感光单元510b可以无法正常工作,即处于未被驱动的状态。
另外,在此情况下,第1感光单元510a属于第一类感光单元511,第2感光单元510b属于第二类感光单元512。
对于第六电连接端623与第五电连接端622导通且第六电连接端623与第四电连接端621断开的情况,与前文的描述相类似,在此就不必再详细赘述。
结合图12、图13所示的示例,图15示出了第一类感光单元511和第二类感光单元512的电连接方式。从图15可以看出,第一类感光单元511的负载电压可以是|V0-V1|,第二类感光单元512可以处于断开状态。也就是说,在同一行上,任意两个相邻的感光单元510的电连接方式不同。并且,在同一列上,任意两个相邻的感光单元510的电连接方式不同。
在受益于相关描述和相关附图中呈现的指导启示下,本领域技术人员将会想到驱动电路600的其他可能的实施例。因此,应理解,本申请不限于所公开的特定实施例。
如上文所述,在一种可能的场景中,感光驱动器910可能无法同时驱动图像传感器440内的全部感光单元。感光驱动器910可以分批次驱动图像传感器440内的感光单元,即在不同的驱动批次内,驱动不同感光区域内的感光单元。
如图16所示,图像传感器440可以包括n个感光区域,分别为第1感光区域,第2感光区域,……第i感光区域,……第n感光区域,1≤i≤n,n>1,且i、n均为整数。
感光驱动器910驱动感光单元阵列的总批次可以包括n个感光驱动批次,该n个感光驱动批次可以与该n个感光区域一一对应。也就是说,感光驱动器910可以在不同感光驱动批次内驱动不同的感光区域。
例如,如图16所示,n个感光驱动批次可以包括第1感光驱动批次,第2感光驱动批次,……,第i感光驱动批次,……,第n感光驱动批次。其中,在第i感光驱动批次中,感光驱动器910可以驱动第i感光区域内的多个感光单元。
在一个示例中,图像传感器440还可以包括第三电连接端转换器件630,通过该第三电连接端转换器件630,可以改变图像传感器440的通电区域。第三电连接端转换器件630可以是MOS管。
结合图16,下面以感光驱动器910驱动第1感光区域,关闭第2感光区域为例进行说明。在受益于相关描述和相关附图中呈现的指导启示下,本领域技术人员将会想到分批驱动感光单元的其他可能的实施例。因此,应理解,本申请不限于所公开的特定实施例。
第三电连接端转换器件630可以包括第七电连接端631、第八电连接端632、第九电连接端633。第七电连接端631可以与感光驱动器910电连接。第八电连接端632可以与第1感光区域的电信号输入端电连接,从而感光驱动器910可以通过第三电连接端转换器件630与第1感光区域内的感光单元电连接。第九电连接端633可以与第2感光区域的电 信号输入端电连接,从而感光驱动器910可以通过第三电连接端转换器件630与第2感光区域内的感光单元电连接。第三电连接端转换器件630可以切换与第七电连接端631电连接的电连接端,使得第七电连接端631与第八电连接端632导通(且第七电连接端631与第九电连接端633断开),或者第七电连接端631与第九电连接端633断开导通(且第七电连接端631与第八电连接端632)。
结合图12、图13所示的示例,n个感光驱动批次中的目标感光驱动批次又可以包括2个感光驱动子批次(如图12、图13所示的第1感光驱动子批次和第2感光驱动子批次)。结合图16,并以第1感光区域、第2感光区域为例,阐述感光驱动器910驱动感光单元阵列的一种具体方式。
如图16所示,第1感光区域内的第1感光单元组(如图16中标注“1”的矩形)在第1感光区域的相对位置,可以与第2感光区域内的第3感光单元组(如图16中标注“3”的矩形)在第2感光区域的相对位置对应。类似地,第1感光区域内的第2感光单元组(如图16中标注“2”的矩形)在第1感光区域的相对位置,可以与第2感光区域内的第4感光单元组(如图16中标注“4”的矩形)在第2感光区域的相对位置对应。
首先,感光驱动器910可以执行第1感光驱动批次。相应地,第1感光区域内的感光单元可以被分批驱动。如图16所示,第三电连接端转换器件630的第七电连接端631可以与第八电连接端632导通。可选的,图像传感器440中(除第1感光区域以外)的其他感光区域内的感光单元均可以不被驱动。
其中,第1感光驱动批次还包括上文所述的第1感光驱动子批次和第2感光驱动子批次。在第1感光驱动批次的第1感光驱动子批次中,第1感光区域内的第1感光单元组可以被驱动,第1感光区域内的第2感光单元组可以处于未被驱动的状态。在此情况下,第1感光单元组内的感光单元可以属于上文所述的第一类感光单元511,第2感光单元组内的感光单元可以是上文所述的第二类感光单元512。
类似地,在第1感光驱动批次的第2感光驱动子批次中,第1感光区域内的第2感光单元组可以被驱动,第1感光区域内的第1感光单元组可以处于未被驱动的状态。在此情况下,第2感光单元组内的感光单元可以属于上文所述的第一类感光单元511,第1感光单元组内的感光单元可以是上文所述的第二类感光单元512。
之后,感光驱动器910可以执行第2感光驱动批次。相应地,第2感光区域内的感光单元可以被分批驱动。如图16所示,第三电连接端转换器件630的第七电连接端631可以与第九电连接端633导通。可选的,图像传感器440中(除第2感光区域以外)的其他感光区域内的感光单元均可以不被驱动。
其中,第2感光驱动批次还包括上文所述的第1感光驱动子批次和第2感光驱动子批次。在第2感光驱动批次的第1感光驱动子批次中,第2感光区域内的第3感光单元组可以被驱动,第2感光区域内的第4感光单元组可以处于未被驱动的状态。在此情况下,第3感光单元组内的感光单元可以属于上文所述的第一类感光单元511,第4感光单元组内的感光单元可以是上文所述的第二类感光单元512。
类似地,在第2感光驱动批次的第2感光驱动子批次中,第2感光区域内的第4感光单元组可以被驱动,第2感光区域内的第3感光单元组可以处于未被驱动的状态。在此情况下,第4感光单元组内的感光单元可以属于上文所述的第一类感光单元511,第3感光 单元组内的感光单元可以是上文所述的第二类感光单元512。
图17示出了第1感光区域、第2感光区域内的感光单元的另一种驱动方式。如图17所示,第2感光区域内的第3感光单元组(如图17中标注“3”的矩形)在第2感光区域的相对位置,可以与第1感光区域内的第2感光单元组(如图17中标注“2”的矩形)在第2感光区域的相对位置对应。类似地,第2感光区域内的第4感光单元组(如图17中标注“4”的矩形)在第2感光区域的相对位置,可以与第1感光区域内的第1感光单元组(如图17中标注“1”的矩形)在第1感光区域的相对位置对应。
感光驱动器910可以执行第1感光驱动批次。第1感光驱动批次还包括上文所述的第1感光驱动子批次和第2感光驱动子批次。在第1感光驱动批次的第1感光驱动子批次中,第1感光区域内的第1感光单元组可以被驱动,第1感光区域内的第2感光单元组可以处于未被驱动的状态。在第1感光驱动批次的第2感光驱动子批次中,第1感光区域内的第2感光单元组可以被驱动,第1感光单元组可以处于未被驱动的状态。
感光驱动器910可以执行第2感光驱动批次。第2感光驱动批次还包括上文所述的第1感光驱动子批次和第2感光驱动子批次。在第2感光驱动批次的第1感光驱动子批次中,第2感光区域内的第3感光单元组可以被驱动,第2感光区域内的第4感光单元组可以处于未被驱动的状态。在第2感光驱动批次的第2感光驱动子批次中,第2感光区域内的第4感光单元组可以被驱动,第3感光单元组可以处于未被驱动的状态。
由图16、图17所示的示例可以看出,不同感光区域内的感光单元的驱动顺序可以不同。
在受益于相关描述和相关附图中呈现的指导启示下,本领域技术人员将会想到图像传感器440的其他可能的驱动方式。因此,应理解,本申请不限于所公开的特定实施例。
根据上文所述的3D图像的拍摄原理,在一种可能的场景中,电子设备或电子设备的处理器(或控制器)可以根据光自发光部件1232射出到射入3D摄像头的DToF,获取被摄物体的3D图像。
发光驱动器920可以对发光部件1232执行n个发光驱动批次,该n个发光驱动批次可以与该n个感光驱动批次一一对应。
例如,该n个发光驱动批次可以包括第1发光驱动批次,第2发光驱动批次,……,第i发光驱动批次,……,第n发光驱动批次。其中,第i发光驱动批次可以对应第i感光驱动批次。
根据图12、图13所示的示例,n个感光驱动批次中的每个感光驱动批次又可以包括2个感光驱动子批次。可选的,n个发光驱动批次中的每个发光驱动批次又可以包括2个发光驱动子批次。该2个发光驱动子批次可以与该2个感光驱动子批次一一对应。
例如,第i发光驱动批次的第1发光驱动子批次可以与第i感光驱动批次的第1感光驱动子批次对应,第i发光驱动批次的第2发光驱动子批次可以与第i感光驱动批次的第2感光驱动子批次对应。
假设在第i发光驱动批次的第1发光驱动子批次内,发光驱动器920驱动发光部件1232发出光信号的时刻为t
i1,相应地,在第i感光驱动批次的第1感光驱动子批次内,目标感光单元检测到光信号的时刻为t
i1’。电子设备或电子设备的处理器(或控制器)可以获取该目标感光单元所对应的DToF为t
i1’-t
i1。
发光部件1232可以包括多个发光单元。
在一个示例中,在不同的发光驱动批次中,发光驱动器920可以驱动相同的发光单元进行发光。
例如,在n个发光驱动批次中的每个发光驱动批次中,发光驱动器920可以驱动发光部件1232内的全部发光单元。
在另一个示例中,在不同的发光驱动批次中,发光驱动器920可以驱动不同的发光单元进行发光。例如,将图像传感器440的感光区域等分成n份,可以得到n个感光区域。并且,按照相同的等分方式,将发光部件1232的发光区域进行等分,得到与该n个感光区域一一对应的n个发光区域。该n个发光区域可以包括第1发光区域,第2发光区域,……第i发光区域,……第n发光区域,1≤i≤n,且i、n均为整数。其中,第i发光区域可以与第i感光区域对应。
可选的,在该第i发光驱动批次内,第i发光区域内的发光单元可以对被摄物体进行一次或多次曝光。相应地,在第i感光驱动批次内,第i感光区域内的感光单元可以对来自被摄物体的光信号进行一次或多次检测。该一次或多次曝光可以与该一次或多次检测一一对应。
图18是本申请实施例提供的一种图像传感器440和发光部件1232的控制电路的示意性结构图。
电子设备的主处理器(或主控制器)可以控制3D摄像头,以执行3D图像的拍摄操作。3D摄像头的处理器(或控制器等)可以控制发光驱动器920,以对发光部件1232内的发光单元进行驱动,并且,3D摄像头的处理器(或控制器等)可以协同控制图像传感器440的感光驱动器910,以对图像传感器440内的感光单元进行驱动。
针对第i发光驱动批次(或第i感光驱动批次),感光驱动器910可以通过图像传感器440与发光部件1232之间的接口,通知发光部件1232的发光驱动器920,以驱动第i发光区域内的发光单元。之后,发光驱动器920可以与第i发光区域内的发光单元电连接。相应地或与此同时,感光驱动器910可以驱动第i感光区域内的感光单元。最终,电子设备可以获取被摄物体的一部分3D图像信息,该部分3D图像信息可以与该第i感光区域对应。
下面结合图18,以发光驱动器920驱动第1发光区域,关闭第2发光区域为例进行说明。
发光部件1232可以包括第四电连接端转换器件640。通过该第四电连接端转换器件640,可以改变发光部件1232的通电区域。第四电连接端转换器件640可以是MOS管。
第四电连接端转换器件640可以包括第十电连接端641、第十一电连接端642、第十二电连接端643。第十电连接端641可以与发光驱动器920电连接。第十一电连接端642可以与第1发光区域的电信号输入端电连接,从而发光驱动器920可以通过第四电连接端转换器件640与第1发光区域内的发光单元电连接。第十二电连接端643可以与第2发光区域的电信号输入端电连接,从而发光驱动器920可以通过第四电连接端转换器件640与第2发光区域内的发光单元电连接。第四电连接端转换器件640可以切换与第十电连接端641电连接的电连接端,使得第十电连接端641与第十一电连接端642导通(且第十电连接端641与第十二电连接端643断开),或者第十电连接端641与第十二电连接端643断 开导通(且第十电连接端641与第十一电连接端642)。
图19是本申请实施例提供的另一种图像传感器440和发光部件1232的控制电路的示意性结构图。
电子设备的主处理器(或主控制器)可以控制图像传感器440的感光驱动器910对感光单元进行驱动。电子设备的主处理器(或主控制器)还可以协同控制发光部件1232的发光驱动器920对发光单元进行驱动。
具体地,针对第i发光驱动批次(或第i感光驱动批次),电子设备的主处理器(或主控制器)可以通过主处理器(或主控制器)与发光部件1232之间的接口,通知发光部件1232的发光驱动器920,以驱动第i发光区域内的发光单元。相应地或与此同时,电子设备的主处理器(或主控制器)可以通过主处理器(或主控制器)与图像传感器440之间的接口,通知图像传感器440的感光驱动器910,以驱动第i感光区域内的感光单元。最终,电子设备可以获取被摄物体的一部分3D图像信息,该部分3D图像信息可以与该第i感光区域对应。
假设图像传感器440可以获取分辨率为320*240的3D图像。
在一个示例中,电子设备或电子设备的处理器(或控制器)可以参照如图8所示的实施例,分批次驱动图像传感器440。也就是说,电子设备或电子设备的处理器(或控制器)在目标驱动批次内驱动目标感光区域520内的全部感光单元。假设驱动图像传感器440的批次数量为8次,则相应地,图像传感器440可以被划分得到8个感光区域,每个感光区域例如可以对应分辨率为320*30的图像块(或分辨率为40*240的图像块、80*120的图像块、160*60的图像块等)。
在一个示例中,电子设备或电子设备的处理器(或控制器)可以参照如图12至图19所示的实施例,分批次驱动图像传感器440。也就是说,电子设备或电子设备的处理器(或控制器)在目标驱动批次内仅驱动目标感光区域520内的第一类感光单元511。假设驱动图像传感器440的批次数量仍为8次,每个感光驱动批次进一步包括2个感光驱动子批次,则相应地,图像传感器440可以被划分得到4个感光区域,每个感光区域例如可以对应分辨率为320*60的图像块(或分辨率为80*240的图像块、160*120的图像块等)。
如上所述,在图像传感器440需分批次驱动的情况下,仅驱动目标驱动批次内的部分感光单元可以不额外增加图像传感器440的驱动批次。
在受益于相关描述和相关附图中呈现的指导启示下,本领域技术人员将会想到图像传感器440的其他可能的驱动方式。因此,应理解,本申请不限于所公开的特定实施例。
图20是本申请实施例提供的一种目标感光区域的示意性结构图。图21示出了该目标感光区域内的多个感光单元的驱动方式。
图像传感器包括当前被驱动的多个第一类感光单元511以及当前未被驱动的多个第二类感光单元512。目标感光区域内的感光单元的驱动方式可以满足:在同一行上,任意两个相邻的第一类感光单元511之间可以间隔有1个第二类感光单元512。并且,在同一列上,任意两个相邻的第一类感光单元511之间间隔有1个第二类感光单元512。并且,在同一斜线上,任意两个相邻的第一类感光单元511之间间隔有1个第二类感光单元512。由上文所述的感光单元的光串扰原理可知,图20所示的感光单元的控制方式有利于减少感光单元承受的光串扰程度。
如图21所示,通过4个感光驱动子批次,可以实现全部感光单元被驱动。4个感光驱动子批次分别为第1感光驱动子批次、第2感光驱动子批次、第3感光驱动子批次、第4感光驱动子批次。
相应地,目标感光区域内的感光单元可以被划分为4个感光单元组。该4个感光单元组与该4个感光驱动子批次一一对应。也就是说,每个感光驱动子批次可以驱动对应的感光单元组。该4个感光单元组可以分别为第1感光单元组(如图21中标注“1”的矩形)、第2感光单元组(如图21中标注“2”的矩形)、第3感光单元组(如图21中标注“3”的矩形)、第4感光单元组(如图21中标注“4”的矩形)。
例如,第1感光驱动子批次可以驱动第1感光单元组;第2感光驱动子批次可以驱动第2感光单元组;第3感光驱动子批次可以驱动第3感光单元组;第4感光驱动子批次可以驱动第4感光单元组。
可以看出,在前一感光驱动子批次中被驱动的第一类感光单元511,可以是后一感光驱动子批次中未被驱动的第二类感光单元512;在前一感光驱动子批次中未被驱动的第二类感光单元512,可以是后一感光驱动子批次中被驱动的第一类感光单元511或未被驱动的第二类感光单元512。在该后一感光驱动子批次中被驱动的第一类感光单元511,可以是前一感光驱动子批次中未被驱动的第二类感光单元512;在该后一感光驱动子批次中未被驱动的第二类感光单元512,可以是前一感光驱动子批次中被驱动的第一类感光单元511或未被驱动的第二类感光单元512。
在一个示例中,一个像素单元可以对应一个感光单元。假设存在一个与目标感光区域对应的目标像素区域,目标感光区域可以包括多个感光单元,该目标像素区域可以包括与该多个感光单元一一对应的多个像素单元。在图21所示的4个感光驱动子批次内,电子设备可以依次获取该目标像素区域内一小部分像素单元的图像信息。在该4个感光驱动子批次后,目标感光区域内的全部感光单元可以被成功驱动,因此电子设备可以获取目标像素区域内的全部像素单元的图像信息。
在一个示例中,一个像素单元可以对应多个感光单元。假设存在目标像素单元,该目标像素单元对应目标感光区域内的多个感光单元。经过图21所示的4个感光驱动子批次后,目标感光区域内的全部感光单元可以被成功驱动。因此,电子设备可以根据在该4个感光驱动子批次检测到的信号,确定目标像素单元的图像信息。
图20、图21所示实施例的驱动电路、发光部件和图像传感器的控制电路、发光部件和图像传感器的控制方式等可以参照图12至图19所示的实施例,在此就不必再详细赘述。
图22是本申请实施例提供的一种目标感光区域的示意性结构图。图23示出了该目标感光区域内的多个感光单元的驱动方式。
图像传感器包括当前被驱动的多个第一类感光单元511以及当前未被驱动的多个第二类感光单元512。目标感光区域内的感光单元的驱动方式可以满足:在同一行上,任意两个相邻的第一类感光单元511之间可以间隔有3个第二类感光单元512。并且,在同一列上,任意两个相邻的第一类感光单元511之间间隔有3个第二类感光单元512。并且,在同一斜线上,任意两个相邻的第一类感光单元511之间间隔有1个第二类感光单元512。由上文所述的感光单元的光串扰原理可知,图22所示的感光单元的控制方式有利于减少感光单元承受的光串扰程度。
如图23所示,目标感光区域内的感光单元可以被划分为8个感光单元组。该8个感光单元组可以分别为第1感光单元组(如图23中标注“1”的矩形)、第2感光单元组(如图23中标注“2”的矩形)、第3感光单元组(如图23中标注“3”的矩形)、第4感光单元组(如图23中标注“4”的矩形)、第5感光单元组(如图23中标注“5”的矩形)、第6感光单元组(如图23中标注“6”的矩形)、第7感光单元组(如图23中标注“7”的矩形)、第8感光单元组(如图23中标注“8”的矩形)。通过与该8个感光单元组一一对应的8个感光驱动子批次,并且,每个感光驱动子批次可以驱动对应的感光单元组,可以实现全部感光单元被驱动。
在一个示例中,一个像素单元可以对应一个感光单元。假设存在一个与目标感光区域对应的目标像素区域。结合上文所述,在该8个感光驱动子批次后,目标感光区域内的全部感光单元可以被成功驱动。因此电子设备可以获取目标像素区域内全部像素单元的图像信息。
在一个示例中,一个像素单元可以对应多个感光单元。假设存在一个目标像素单元,该目标像素单元对应目标感光区域内的多个感光单元。结合上文所述,在该8个感光驱动子批次后,目标感光区域内的全部感光单元可以被成功驱动。因此,电子设备可以根据在该8个感光驱动子批次检测到的信号,确定目标像素单元的图像信息。
图22、图23所示实施例的驱动电路、发光部件和图像传感器的控制电路、发光部件和图像传感器的控制方式等可以参照图12至图19所示的实施例,在此就不必再详细赘述。
图24是本申请实施例提供的一种目标感光区域的示意性结构图。图25示出了该目标感光区域内的多个感光单元的驱动方式。
图像传感器包括当前被驱动的多个第一类感光单元511以及当前未被驱动的多个第二类感光单元512。目标感光区域内的感光单元的驱动方式可以满足:在同一行上,任意两个相邻的第一类感光单元511之间可以间隔有3个第二类感光单元512。并且,在同一列上,任意两个相邻的第一类感光单元511之间间隔有3个第二类感光单元512。并且,在同一斜线上,任意两个相邻的第一类感光单元511之间间隔有1个第二类感光单元512。由上文所述的感光单元的光串扰原理可知,图24所示的感光单元的控制方式有利于减少感光单元承受的光串扰程度。
如图25所示,目标感光区域内的感光单元可以被划分为9个感光单元组。该9个感光单元组可以分别为第1感光单元组(如图25中标注“1”的矩形)、第2感光单元组(如图25中标注“2”的矩形)、第3感光单元组(如图25中标注“3”的矩形)、第4感光单元组(如图25中标注“4”的矩形)、第5感光单元组(如图25中标注“5”的矩形)、第6感光单元组(如图25中标注“6”的矩形)、第7感光单元组(如图25中标注“7”的矩形)、第8感光单元组(如图25中标注“8”的矩形)、第9感光单元组(如图25中标注“9”的矩形)。通过与该9个感光单元组一一对应的9个感光驱动子批次,并且,每个感光驱动子批次可以驱动对应的感光单元组,可以实现全部感光单元被驱动。
在一个示例中,一个像素单元可以对应一个感光单元。假设存在一个与目标感光区域对应的目标像素区域。结合上文所述,在该9个感光驱动子批次后,目标感光区域内的全部感光单元可以被成功驱动。因此电子设备可以获取目标像素区域内全部像素单元的图像信息。
在一个示例中,一个像素单元可以对应多个感光单元。假设存在一个目标像素单元,该目标像素单元对应目标感光区域内的多个感光单元。结合上文所述,在该9个感光驱动子批次后,目标感光区域内的全部感光单元可以被成功驱动。因此,电子设备可以根据在该9个感光驱动子批次检测到的信号,确定目标像素单元的图像信息。
图24、图25所示实施例的驱动电路、发光部件和图像传感器的控制电路、发光部件和图像传感器的控制方式等可以参照图12至图19所示的实施例,在此就不必再详细赘述。
图26是本申请实施例提供的一种图像传感器440的控制方法的示意性流程图。图26所示的方法可以应用上文所述的图像传感器440,或者包含该图像传感器440的3D摄像头或电子设备。该方法可以由上述图像传感器440、3D摄像头或电子设备内的控制器(或控制模块、控制单元等)或处理器(或处理模块、处理单元等)、驱动器(或驱动模块、驱动单元等)等执行。
该图像传感器440可以包括感光单元阵列,所述感光单元阵列包括多个感光单元。
2601,从所述多个感光单元中确定多个第一类感光单元和/或多个第二类感光单元,所述第一类感光单元以及第二类感光单元满足以下任一项:在任一行上,任意两个相邻的第一类感光单元之间间隔有至少一个所述第二类感光单元,在任一列上,任意两个相邻的第一类感光单元之间间隔有至少一个所述第二类感光单元,以及在任一斜线上,任意两个相邻的第一类感光单元之间间隔有至少一个所述第二类感光单元。
2602,控制所述第一类感光单元的负载电压为第一电压,控制所述第二类感光单元的负载电压为第二电压,所述第一电压高于所述感光单元的工作电压,所述第二电压低于所述感光单元的工作电压。
可选的,所述感光单元包括第一输入端、第二输入端;所述感光驱动器包括第一驱动连接端、第二驱动连接端、第三驱动连接端,所述第一驱动连接端与所述第二驱动连接端的电压差为所述第一电压,所述第一驱动连接端与所述第三驱动连接端的电压差为所述第二电压;所述图像传感器还包括第一电连接端转换器件,所述第一电连接端转换器件包括第一电连接端、第二电连接端、第三电连接端,所述第一电连接端转换器件用于在所述第一电连接端与所述第二电连接端导通、所述第一电连接端与所述第三电连接端导通之间切换;所述感光单元通过所述第一输入端与所述感光驱动器的第一驱动连接端电连接,所述感光单元通过所述第二输入端与所述第一电连接端转换器件的第一电连接端电连接,所述第一电连接端转换器件通过所述第二电连接端与所述感光驱动器的第二驱动连接端电连接,所述第一电连接端转换器件通过所述第三电连接端与所述感光驱动器的第三驱动连接端电连接;所述控制所述第一类感光单元的负载电压为第一电压,控制所述第二类感光单元的负载电压为第二电压,包括:控制所述第一电连接端转换器件切换与所述第一电连接端导通的电连接端,使得在所述感光单元属于所述第一类感光单元的情况下,所述第一电连接端与所述第二电连接端导通,且所述第一电连接端与所述第三电连接端断开,在所述感光单元属于所述第二类感光单元的情况下,所述第一电连接端与所述第三电连接端导通,且所述第一电连接端与所述第二电连接端断开。
可选的,所述多个感光单元包括多个第一感光单元、多个第二感光单元,所述第一感光单元包括第三输入端、第四输入端;所述第二感光单元包括第五输入端、第六输入端;所述感光驱动器包括第四驱动连接端、第五驱动连接端,所述第四驱动连接端与所述第五 驱动连接端的电压差为所述第一电压;所述图像传感器还包括第二电连接端转换器件,所述第二电连接端转换器件包括第四电连接端、第五电连接端、第六电连接端,所述第二电连接端转换器件用于在所述第四电连接端与所述第六电连接端导通、所述第五电连接端与所述第六电连接端导通之间切换;所述第一感光单元通过所述第三输入端与所述感光驱动器的第四驱动连接端电连接,所述第一感光单元通过所述第四输入端与所述第二电连接端转换器件的第四电连接端电连接;所述第二感光单元通过所述第五输入端与所述感光驱动器的第四驱动连接端电连接,所述第二感光单元通过所述第六输入端与所述第二电连接端转换器件的第五电连接端电连接;所述第二电连接端转换器件通过所述第六电连接端与所述感光驱动器的第五驱动连接端电连接,所述控制所述第一类感光单元的负载电压为第一电压,控制所述第二类感光单元的负载电压为第二电压,包括:控制所述第二电连接端转换器件切换与所述第六电连接端导通的电连接端,使得所述第四电连接端与所述第六电连接端导通,且所述第五电连接端与所述第六电连接端断开,或者,所述第五电连接端与所述第六电连接端导通,且所述第四电连接端与所述第六电连接端断开。
可选的,在所述从所述多个感光单元中确定多个第一类感光单元和/或多个第二类感光单元之前,所述方法还包括:确定第一感光区域内的感光单元和/或第二感光区域内的感光单元,所述第一感光区域与所述第二感光区域为所述图像传感器的两个互不相连的感光区域,所述多个感光单元均位于所述第一感光区域内;控制所述第一感光区域内的感光单元与所述感光驱动器电连接,切断所述第二感光区域内的感光单元与所述感光驱动器之间的电连接。
可选的,所述图像传感器还包括:第三电连接端转换器件,所述第三电连接端转换器器件包括第七电连接端、第八电连接端、第九电连接端,所述第三电连接端转换器件用于在所述第八电连接端与所述第七电连接端导通、所述第九电连接端与所述第七电连接端导通之间切换,所述第三电连接端转换器件通过所述第七电连接端与所述感光驱动器电连接,所述第三电连接端转换器件通过所述第八电连接端与所述第一感光区域内的感光单元电连接,所述第三电连接端转换器件通过所述第九电连接端与所述第二感光区域内的感光单元电连接;所述控制所述第一感光区域内的感光单元与所述感光驱动器电连接,切断所述第二感光区域内的感光单元与所述感光驱动器之间的电连接,包括:控制所述第三电连接端转换器件切换与所述第七电连接端导通的电连接端,使得所述第七电连接端与所述第八电连接端导通、所述第七电连接端与所述第九电连接端断开。
可选的,所述方法应用于3D摄像头,所述3D摄像头包括发光部件,所述发光部件包括多个发光单元,在所述控制所述第一感光区域内的感光单元与所述感光驱动器电连接,切断所述第二感光区域内的感光单元与所述感光驱动器之间的电连接之前,所述方法还包括:从所述多个发光单元中确定第一发光区域内的发光单元和/或第二发光区域内的发光单元,所述第一发光区域与所述第一感光区域对应,所述第二发光区域与所述第二感光区域对应;所述控制所述第一感光区域内的感光单元与所述感光驱动器电连接,切断所述第二感光区域内的感光单元与所述感光驱动器之间的电连接,包括:协同控制所述第一发光区域内的发光单元与所述发光驱动器电连接,以及所述第一感光区域内的感光单元与所述感光驱动器电连接,协同切断所述第二发光区域内的发光单元与所述发光驱动器之间的电连接以及所述第二感光区域内的感光单元与所述感光驱动器之间的电连接。
可选的,所述发光部件还包括:第四电连接端转换器件,所述第四电连接端转换器器件包括第十电连接端、第十一电连接端、第十二电连接端,所述第十一电连接端,在所述第十二电连接端中的一个电连接端与所述第十电连接端导通的情况下,另一个电连接端与所述第十电连接端断开,所述第四电连接端转换器件通过所述第十电连接端与所述发光驱动器电连接,所述第四电连接端转换器通过所述第十一电连接端与所述第一发光区域内的发光单元电连接,所述第四电连接端转换器通过所述第十二电连接端与所述第二发光区域内的发光单元电连接;所述控制所述第一发光区域内的发光单元与所述发光驱动器电连接,切断所述第二发光区域内的发光单元与所述发光驱动器之间的电连接,包括:控制所述第四电连接端转换器件切换与所述第十电连接端导通的电连接端,使得所述第十电连接端与所述第十一电连接端导通、所述第十电连接端与所述第十二电连接端断开。
可选的,所述方法由所述图像传感器内的感光驱动器执行,或者由电子设备内的处理器执行,所述图像传感器设置于所述电子设备内。
可选的,所述方法还包括:根据所述第一类感光单元检测到的信号,生成3D图像。
可选的,所述多个感光单元包括4个感光单元组,所述4个感光单元组包括目标感光单元组,所述目标感光单元组内的感光单元属于所述第一类感光单元,所述4个感光单元组中剩余3个感光单元组内的感光单元属于所述第二类感光单元,所述目标感光单元组为所述4个感光单元组中的任一感光单元组,所述第一类感光单元和第二类感光单元满足:在同一行上,任意两个相邻的所述第一类感光单元之间间隔有1个所述第二类感光单元,在同一列上,任意两个相邻的所述第一类感光单元之间间隔有1个所述第二类感光单元,并且,在同一斜线上,任意两个相邻的所述第一类感光单元之间间隔有1个所述第二类感光单元。
可选的,所述多个感光单元包括8个感光单元组,所述8个感光单元组包括目标感光单元组,所述目标感光单元组内的感光单元属于所述第一类感光单元,所述8个感光单元组中剩余7个感光单元组内的感光单元属于所述第二类感光单元,所述目标感光单元组为所述8个感光单元组中的任一感光单元组,所述第一类感光单元和第二类感光单元满足:在同一行上,任意两个相邻的所述第一类感光单元之间间隔有3个所述第二类感光单元,在同一列上,任意两个相邻的所述第一类感光单元之间间隔有3个所述第二类感光单元,并且,在同一斜线上,任意两个相邻的所述第一类感光单元之间间隔有1个所述第二类感光单元。
可选的,所述多个感光单元包括9个感光单元组,所述9个感光单元组包括目标感光单元组,所述目标感光单元组内的感光单元属于所述第一类感光单元,所述9个感光单元组中剩余8个感光单元组内的感光单元属于所述第二类感光单元,所述目标感光单元组为所述9个感光单元组中的任一感光单元组,所述第一类感光单元和第二类感光单元满足:在同一行上,任意两个相邻的所述第一类感光单元之间间隔有2个所述第二类感光单元,在同一列上,任意两个相邻的所述第一类感光单元之间间隔有2个所述第二类感光单元,并且,在同一斜线上,任意两个相邻的所述第一类感光单元之间间隔有2个所述第二类感光单元。
下面是本申请实施例提供的另一种图像传感器的控制方法,包括:从多个感光单元中确定多个第一感光单元、多个第二感光单元,所述第一感光单元和第二感光单元满足:在 同一行上,任意两个相邻的第一感光单元之间间隔有1个第二感光单元,在同一列上,任意两个相邻的第一感光单元之间间隔有1个第二感光单元,并且,在同一斜线上,任意两个相邻的第一感光单元之间不间隔第二感光单元;在第一驱动子批次内,驱动所述第一感光单元,并关闭所述第二感光单元;在第二驱动子批次内,驱动所述第二感光单元,并关闭所述第一感光单元。
本申请实施例提供的电子设备100可以包括存储器、处理器(或控制器、驱动器等)、通信接口以及总线。其中,存储器、处理器(或控制器、驱动器等)、通信接口通过总线实现彼此之间的通信连接。
存储器可以是只读存储器(read only memory,ROM),静态存储设备,动态存储设备或者随机存取存储器(random access memory,RAM)。存储器可以存储程序,当存储器中存储的程序被处理器(或控制器、驱动器等)执行时,处理器(或控制器、驱动器等)用于执行本申请实施例中图26所示的图像传感器的控制方法的各个步骤。
处理器(或控制器、驱动器等)可以采用通用的中央处理器(central processing unit,CPU),微处理器,应用专用集成电路(application specific integrated circuit,ASIC),图形处理器(graphics processing unit,GPU)或者一个或多个集成电路,用于执行相关程序,以实现本申请实施例中图26所示的图像传感器的控制方法。
处理器(或控制器、驱动器等)还可以是一种集成电路芯片,具有信号的处理能力。在实现过程中,本申请实施例中图26所示的图像传感器的控制方法的各个步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。
上述处理器(或控制器、驱动器等)还可以是通用处理器、数字信号处理器(digital signal processing,DSP)、专用集成电路(ASIC)、现成可编程门阵列(field programmable gate array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成本申请实施例的电子设备100中包括的单元所需执行的功能,或者执行本申请实施例中图26所示的图像传感器的控制方法。
通信接口使用例如但不限于收发器一类的收发装置,来实现电子设备100与其他设备或通信网络之间的通信。
总线可包括在电子设备100各个部件(例如,存储器、处理器(或控制器、驱动器等)、通信接口)之间传送信息的通路。
应理解,电子设备100中的处理模块可以相当于处理器(或控制器、驱动器等)。
本申请实施例提供的3D摄像头123可以包括存储器、处理器(或控制器、驱动器等)、通信接口以及总线。有关存储器、处理器(或控制器、驱动器等)、通信接口以及总线的说明可以参照电子设备100中的存储器、处理器(或控制器、驱动器等)、通信接口以及总线,在此就不必再详细赘述。
在本申请实施例中,通过上述方式,有利于减少DToF感光单元之间的串扰。进一步 地,有利于获得分辨率更清晰、精准度更高的3D图像信息。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,
装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(read-only memory,ROM)、随机存取存储器(random access memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。
Claims (20)
- 一种图像传感器(440),其特征在于,包括:多个感光单元(510),所述多个感光单元(510)按照阵列的形式排布;感光驱动器(910),所述感光驱动器(910)用于:从所述多个感光单元(510)中确定多个第一类感光单元(511)和/或多个第二类感光单元(512);控制所述第一类感光单元(511)的负载电压为第一电压,控制所述第二类感光单元(512)的负载电压为第二电压,所述第一电压高于所述感光单元(510)的工作电压,所述第二电压低于所述感光单元(510)的工作电压,所述第一类感光单元(511)以及第二类感光单元(512)满足以下任一项:在任一行上,任意两个相邻的第一类感光单元(511)之间间隔有至少一个所述第二类感光单元(512),在任一列上,任意两个相邻的第一类感光单元(511)之间间隔有至少一个所述第二类感光单元(512),以及在任一斜线上,任意两个相邻的第一类感光单元(511)之间间隔有至少一个所述第二类感光单元(512)。
- 根据权利要求1所述的图像传感器(440),其特征在于,所述感光单元(510)包括第一输入端(521)、第二输入端(522);所述感光驱动器(910)包括第一驱动连接端(911)、第二驱动连接端(912)、第三驱动连接端(913),所述第一驱动连接端(911)与所述第二驱动连接端(912)的电压差为所述第一电压,所述第一驱动连接端(911)与所述第三驱动连接端(913)的电压差为所述第二电压;所述图像传感器(440)还包括第一电连接端转换器件(610),所述第一电连接端转换器件(610)包括第一电连接端(611)、第二电连接端(612)、第三电连接端(613),所述第一电连接端转换器件(610)用于在所述第一电连接端(611)与所述第二电连接端(612)导通、所述第一电连接端(611)与所述第三电连接端(613)导通之间切换;所述感光单元(510)通过所述第一输入端(521)与所述感光驱动器(910)的第一驱动连接端(911)电连接,所述感光单元(510)通过所述第二输入端(522)与所述第一电连接端转换器件(610)的第一电连接端(611)电连接,所述第一电连接端转换器件(610)通过所述第二电连接端(612)与所述感光驱动器(910)的第二驱动连接端(912)电连接,所述第一电连接端转换器件(610)通过所述第三电连接端(613)与所述感光驱动器(910)的第三驱动连接端(913)电连接;所述控制所述第一类感光单元(511)的负载电压为第一电压,控制所述第二类感光单元(512)的负载电压为第二电压,包括:控制所述第一电连接端转换器件(610)切换与所述第一电连接端(611)导通的电连接端,使得在所述感光单元(510)属于所述第一类感光单元(511)的情况下,所述第一电连接 端(611)与所述第二电连接端(612)导通,且所述第一电连接端(611)与所述第三电连接端(613)断开,在所述感光单元(510)属于所述第二类感光单元(512)的情况下,所述第一电连接端(611)与所述第三电连接端(613)导通,且所述第一电连接端(611)与所述第二电连接端(612)断开。
- 根据权利要求1所述的图像传感器(440),其特征在于,所述多个感光单元(510)包括多个第一感光单元(510a)、多个第二感光单元(510b),所述第一感光单元(510a)包括第三输入端(523a)、第四输入端(524a);所述第二感光单元(510b)包括第五输入端(523b)、第六输入端(524b);所述感光驱动器(910)包括第四驱动连接端(914)、第五驱动连接端(915),所述第四驱动连接端(914)与所述第五驱动连接端(915)的电压差为所述第一电压;所述图像传感器(440)还包括第二电连接端转换器件(620),所述第二电连接端转换器件(620)包括第四电连接端(621)、第五电连接端(622)、第六电连接端(623),所述第二电连接端转换器件(620)用于在所述第四电连接端(621)与所述第六电连接端(623)导通、所述第五电连接端(622)与所述第六电连接端(623)导通之间切换;所述第一感光单元(510a)通过所述第三输入端(523a)与所述感光驱动器(910)的第四驱动连接端(914)电连接,所述第一感光单元(510a)通过所述第四输入端(524a)与所述第二电连接端转换器件(620)的第四电连接端(621)电连接;所述第二感光单元(510b)通过所述第五输入端(523b)与所述感光驱动器(910)的第四驱动连接端(914)电连接,所述第二感光单元(510b)通过所述第六输入端(524b)与所述第二电连接端转换器件(620)的第五电连接端(622)电连接;所述第二电连接端转换器件(620)通过所述第六电连接端(623)与所述感光驱动器(910)的第五驱动连接端(915)电连接,所述控制所述第一类感光单元(511)的负载电压为第一电压,控制所述第二类感光单元(512)的负载电压为第二电压,包括:控制所述第二电连接端转换器件(620)切换与所述第六电连接端(623)导通的电连接端,使得所述第四电连接端(621)与所述第六电连接端(623)导通,且所述第五电连接端(622)与所述第六电连接端(623)断开,或者,所述第五电连接端(622)与所述第六电连接端(623)导通,且所述第四电连接端(621)与所述第六电连接端(623)断开。
- 根据权利要求1至3中任一项所述的图像传感器(440),其特征在于,所述感光驱动器(910)还用于,在所述从所述多个感光单元(510)中确定多个第一类感光单元(511)和/或多个第二类感光单元(512)之前,确定第一感光区域内的感光单元(510)和/或第二感光区域内的感光单元(510),所述第一感光区域与所述第二感光区域为所述图像传感器(440)的两个互不相连的感光区域,所述多个感光单元(510)均位于所述第一感光区域内;所述感光驱动器(910)还用于,控制所述第一感光区域内的感光单元(510)与所述感光驱动器(910)电连接,切断所述第二感光区域内的感光单元(510)与所述感光驱动 器(910)之间的电连接。
- 根据权利要求4所述的图像传感器(440),其特征在于,所述图像传感器(440)还包括:第三电连接端转换器件(630),所述第三电连接端转换器件(630)包括第七电连接端(631)、第八电连接端(632)、第九电连接端(633),所述第三电连接端转换器件(630)用于在所述第八电连接端(632)与所述第七电连接端(631)导通、所述第九电连接端(633)与所述第七电连接端(631)导通之间切换,所述第三电连接端转换器件(630)通过所述第七电连接端(631)与所述感光驱动器(910)电连接,所述第三电连接端转换器件(630)通过所述第八电连接端(632)与所述第一感光区域内的感光单元(510)电连接,所述第三电连接端转换器件(630)通过所述第九电连接端(633)与所述第二感光区域内的感光单元(510)电连接;所述控制所述第一感光区域内的感光单元(510)与所述感光驱动器(910)电连接,切断所述第二感光区域内的感光单元(510)与所述感光驱动器(910)之间的电连接,包括:控制所述第三电连接端转换器件(630)切换与所述第七电连接端(631)导通的电连接端,使得所述第七电连接端(631)与所述第八电连接端(632)导通、所述第七电连接端(631)与所述第九电连接端(633)断开。
- 根据权利要求2、3、5中任一项所述的图像传感器(440),其特征在于,所述电连接端转换器件为金属氧化物半导体场效应MOS管。
- 一种3D摄像头,其特征在于,包括:镜头,所述镜头包括如权利要求1至5中任一项所述的图像传感器(440);发光部件(1232),所述发光部件(1232)发出的光经被摄物体反射后入射至所述图像传感器(440),光从所述发光部件(1232)到所述图像传感器(440)的飞行时间用于生成所述被摄物体的3D图像。
- 根据权利要求7所述的3D摄像头,其特征在于,所述图像传感器(440)为权利要求4或5所述的图像传感器(440),所述发光部件(1232)包括:多个发光单元;发光驱动器(920),用于从所述多个发光单元中确定第一发光区域内的发光单元和/或第二发光区域内的发光单元,所述第一发光区域与所述第一感光区域对应,所述第二发光区域与所述第二感光区域对应;所述发光驱动器(920)还用于,在所述第一感光区域内的感光单元(510)与所述感光驱动器(910)电连接,且所述第二感光区域内的感光单元(510)与所述感光驱动器(910)断开的情况下,控制所述第一发光区域内的发光单元与所述发光驱动器(920)电连接,切断所述第二发光区域内的发光单元与所述发光驱动器(920)之间的电连接。
- 根据权利要求7所述的3D摄像头,其特征在于,所述发光部件(1232)还包括:第四电连接端转换器件(640),所述第四电连接端转换器件(640)包括第十电连接端(641)、第十一电连接端(642)、第十二电连接端(643),所述第四电连接端转换器件(640)用于在所述第十一电连接端(642)与所述第十电连接端(641)导通、所述第十二电连接端(643)与所述第十电连接端(641)导通之间切换,所述第四电连接端转 换器件(640)通过所述第十电连接端(641)与所述发光驱动器(920)电连接,所述第四电连接端转换器件(640)通过所述第十一电连接端(642)与所述第一发光区域内的发光单元电连接,所述第四电连接端转换器件(640)通过所述第十二电连接端(643)与所述第二发光区域内的发光单元电连接;所述控制所述第一发光区域内的发光单元与所述发光驱动器(920)电连接,切断所述第二发光区域内的发光单元与所述发光驱动器(920)之间的电连接,包括:控制所述第四电连接端转换器件(640)切换与所述第十电连接端(641)导通的电连接端,使得所述第十电连接端(641)与所述第十一电连接端(642)导通、所述第十电连接端(641)与所述第十二电连接端(643)断开。
- 一种电子设备,其特征在于,包括:如权利要求1至5中任一项所述的图像传感器(440)。
- 一种电子设备,其特征在于,包括:如权利要求6至9中任一项所述的3D摄像头;处理器,用于控制所述3D摄像头拍摄3D图像。
- 一种图像传感器(440)的控制方法,其特征在于,所述图像传感器(440)包括阵列排布的多个感光单元(510),所述方法包括:从所述多个感光单元(510)中确定多个第一类感光单元(511)和/或多个第二类感光单元(512);控制所述第一类感光单元(511)的负载电压为第一电压,控制所述第二类感光单元(512)的负载电压为第二电压,所述第一电压高于所述感光单元(510)的工作电压,所述第二电压低于所述感光单元(510)的工作电压,所述第一类感光单元(511)以及第二类感光单元(512)满足以下任一项:在任一行上,任意两个相邻的第一类感光单元(511)之间间隔有至少一个所述第二类感光单元(512),在任一列上,任意两个相邻的第一类感光单元(511)之间间隔有至少一个所述第二类感光单元(512),以及在任一斜线上,任意两个相邻的第一类感光单元(511)之间间隔有至少一个所述第二类感光单元(512)。
- 根据权利要求12所述的方法,其特征在于,所述感光单元(510)包括第一输入端(521)、第二输入端(522);所述感光驱动器(910)包括第一驱动连接端(911)、第二驱动连接端(912)、第三驱动连接端(913),所述第一驱动连接端(911)与所述第二驱动连接端(912)的电压差为所述第一电压,所述第一驱动连接端(911)与所述第三驱动连接端(913)的电压差为所述第二电压;所述图像传感器(440)还包括第一电连接端转换器件(610),所述第一电连接端转换器件(610)包括第一电连接端(611)、第二电连接端(612)、第三电连接端(613),所述第一电连接端转换器件(610)用于在所述第一电连接端(611)与所述第二电连接端(612)导通、所述第一电连接端(611)与所述第三电连接端(613)导通之间切换;所述感光单元(510)通过所述第一输入端(521)与所述感光驱动器(910)的第一 驱动连接端(911)电连接,所述感光单元(510)通过所述第二输入端(522)与所述第一电连接端转换器件(610)的第一电连接端(611)电连接,所述第一电连接端转换器件(610)通过所述第二电连接端(612)与所述感光驱动器(910)的第二驱动连接端(912)电连接,所述第一电连接端转换器件(610)通过所述第三电连接端(613)与所述感光驱动器(910)的第三驱动连接端(913)电连接;所述控制所述第一类感光单元(511)的负载电压为第一电压,控制所述第二类感光单元(512)的负载电压为第二电压,包括:控制所述第一电连接端转换器件(610)切换与所述第一电连接端(611)导通的电连接端,使得在所述感光单元(510)属于所述第一类感光单元(511)的情况下,所述第一电连接端(611)与所述第二电连接端(612)导通,且所述第一电连接端(611)与所述第三电连接端(613)断开,在所述感光单元(510)属于所述第二类感光单元(512)的情况下,所述第一电连接端(611)与所述第三电连接端(613)导通,且所述第一电连接端(611)与所述第二电连接端(612)断开。
- 根据权利要求12所述的方法,其特征在于,所述多个感光单元(510)包括多个第一感光单元(510a)、多个第二感光单元(510b),所述第一感光单元(510a)包括第三输入端(523a)、第四输入端(524a);所述第二感光单元(510b)包括第五输入端(523b)、第六输入端(524b);所述感光驱动器(910)包括第四驱动连接端(914)、第五驱动连接端(915),所述第四驱动连接端(914)与所述第五驱动连接端(915)的电压差为所述第一电压;所述图像传感器(440)还包括第二电连接端转换器件(620),所述第二电连接端转换器件(620)包括第四电连接端(621)、第五电连接端(622)、第六电连接端(623),所述第二电连接端转换器件(620)用于在所述第四电连接端(621)与所述第六电连接端(623)导通、所述第五电连接端(622)与所述第六电连接端(623)导通之间切换;所述第一感光单元(510a)通过所述第三输入端(523a)与所述感光驱动器(910)的第四驱动连接端(914)电连接,所述第一感光单元(510a)通过所述第四输入端(524a)与所述第二电连接端转换器件(620)的第四电连接端(621)电连接;所述第二感光单元(510b)通过所述第五输入端(523b)与所述感光驱动器(910)的第四驱动连接端(914)电连接,所述第二感光单元(510b)通过所述第六输入端(524b)与所述第二电连接端转换器件(620)的第五电连接端(622)电连接;所述第二电连接端转换器件(620)通过所述第六电连接端(623)与所述感光驱动器(910)的第五驱动连接端(915)电连接,所述控制所述第一类感光单元(511)的负载电压为第一电压,控制所述第二类感光单元(512)的负载电压为第二电压,包括:控制所述第二电连接端转换器件(620)切换与所述第六电连接端(623)导通的电连接端,使得所述第四电连接端(621)与所述第六电连接端(623)导通,且所述第五电连接端(622)与所述第六电连接端(623)断开,或者,所述第五电连接端(622)与所述第六电连接端(623)导通,且所述第四电连接端(621)与所述第六电连接端(623)断开。
- 根据权利要求12至14中任一项所述的方法,其特征在于,在所述从所述多个感光单元(510)中确定多个第一类感光单元(511)和/或多个第二类感光单元(512)之前,所述方法还包括:确定第一感光区域内的感光单元(510)和/或第二感光区域内的感光单元(510),所述第一感光区域与所述第二感光区域为所述图像传感器(440)的两个互不相连的感光区域,所述多个感光单元(510)均位于所述第一感光区域内;控制所述第一感光区域内的感光单元(510)与所述感光驱动器(910)电连接,切断所述第二感光区域内的感光单元(510)与所述感光驱动器(910)之间的电连接。
- 根据权利要求15所述的方法,其特征在于,所述图像传感器(440)还包括:第三电连接端转换器件(630),所述第三电连接端转换器件(630)包括第七电连接端(631)、第八电连接端(632)、第九电连接端(633),所述第三电连接端转换器件(630)用于在所述第八电连接端(632)与所述第七电连接端(631)导通、所述第九电连接端(633)与所述第七电连接端(631)导通之间切换,所述第三电连接端转换器件(630)通过所述第七电连接端(631)与所述感光驱动器(910)电连接,所述第三电连接端转换器件(630)通过所述第八电连接端(632)与所述第一感光区域内的感光单元(510)电连接,所述第三电连接端转换器件(630)通过所述第九电连接端(633)与所述第二感光区域内的感光单元(510)电连接;所述控制所述第一感光区域内的感光单元(510)与所述感光驱动器(910)电连接,切断所述第二感光区域内的感光单元(510)与所述感光驱动器(910)之间的电连接,包括:控制所述第三电连接端转换器件(630)切换与所述第七电连接端(631)导通的电连接端,使得所述第七电连接端(631)与所述第八电连接端(632)导通、所述第七电连接端(631)与所述第九电连接端(633)断开。
- 根据权利要求15或16所述的方法,其特征在于,所述方法应用于3D摄像头,所述3D摄像头包括发光部件(1232),所述发光部件(1232)包括多个发光单元,在所述控制所述第一感光区域内的感光单元(510)与所述感光驱动器(910)电连接,切断所述第二感光区域内的感光单元(510)与所述感光驱动器(910)之间的电连接之前,所述方法还包括:从所述多个发光单元中确定第一发光区域内的发光单元和/或第二发光区域内的发光单元,所述第一发光区域与所述第一感光区域对应,所述第二发光区域与所述第二感光区域对应;所述控制所述第一感光区域内的感光单元(510)与所述感光驱动器(910)电连接,切断所述第二感光区域内的感光单元(510)与所述感光驱动器(910)之间的电连接,包括:协同控制所述第一发光区域内的发光单元与所述发光驱动器(920)电连接,以及所述第一感光区域内的感光单元(510)与所述感光驱动器(910)电连接,协同切断所述第二发光区域内的发光单元与所述发光驱动器(920)之间的电连接以及所述第二感光区域 内的感光单元(510)与所述感光驱动器(910)之间的电连接。
- 根据权利要求17所述的方法,其特征在于,所述发光部件(1232)还包括:第四电连接端转换器件(640),所述第四电连接端转换器件(640)包括第十电连接端(641)、第十一电连接端(642)、第十二电连接端(643),所述第十一电连接端(642),在所述第十二电连接端(643)中的一个电连接端与所述第十电连接端(641)导通的情况下,另一个电连接端与所述第十电连接端(641)断开,所述第四电连接端转换器件(640)通过所述第十电连接端(641)与所述发光驱动器(920)电连接,所述第四电连接端转换器件(640)通过所述第十一电连接端(642)与所述第一发光区域内的发光单元电连接,所述第四电连接端转换器件(640)通过所述第十二电连接端(643)与所述第二发光区域内的发光单元电连接;所述控制所述第一发光区域内的发光单元与所述发光驱动器(920)电连接,切断所述第二发光区域内的发光单元与所述发光驱动器(920)之间的电连接,包括:控制所述第四电连接端转换器件(640)切换与所述第十电连接端(641)导通的电连接端,使得所述第十电连接端(641)与所述第十一电连接端(642)导通、所述第十电连接端(641)与所述第十二电连接端(643)断开。
- 根据权利要求12至18中任一项所述的方法,其特征在于,所述方法由所述图像传感器(440)内的感光驱动器(910)执行,或者由电子设备内的处理器执行,所述图像传感器(440)设置于所述电子设备内。
- 根据权利要求12至19中任一项所述的方法,其特征在于,所述方法还包括:根据所述第一类感光单元(511)检测到的信号,生成3D图像。
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