CN109922264B - Camera anti-shake system and method, electronic device, and computer-readable storage medium - Google Patents

Camera anti-shake system and method, electronic device, and computer-readable storage medium Download PDF

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CN109922264B
CN109922264B CN201910232570.6A CN201910232570A CN109922264B CN 109922264 B CN109922264 B CN 109922264B CN 201910232570 A CN201910232570 A CN 201910232570A CN 109922264 B CN109922264 B CN 109922264B
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angular velocity
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driving
velocity data
jitter compensation
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CN109922264A (en
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张海裕
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Abstract

The application relates to a camera anti-shake system and method, an electronic device and a computer-readable storage medium. The system comprises: a gyroscope for at least one of first angular velocity data and second angular velocity data; the main control chip is connected with a first output end and a second output end of the gyroscope and used for calculating to obtain jitter compensation data according to the first angular velocity data when the first angular velocity data is received through the first output end, receiving second angular velocity data output by the second output end when the first angular velocity data is received through the first output end and performing application processing according to the second angular velocity data; the driving chip is connected with the main control chip and used for receiving the jitter compensation data sent by the main control chip and outputting an electric signal according to the jitter compensation data; and the motor is used for receiving the electric signal output by the driving chip and driving the lens to move according to the electric signal. The camera anti-shake system and method, the electronic equipment and the computer readable storage medium can improve the accuracy of image acquisition.

Description

Camera anti-shake system and method, electronic device, and computer-readable storage medium
Technical Field
The present disclosure relates to the field of computer technologies, and in particular, to a camera anti-shake system and method, an electronic device, and a computer-readable storage medium.
Background
The camera can collect the light of shooting the scene in the process of shooting the image, and then converts the collected light into an electric signal through the photosensitive element for storage. The camera needs a certain time from the light of the mobile phone to the imaging process, and if the camera shakes in the imaging process, the collected light changes, so that the image obtained by imaging is blurred.
Disclosure of Invention
The embodiment of the application provides a camera anti-shake system and method, electronic equipment and a computer readable storage medium, which can improve the accuracy of image acquisition.
A camera anti-shake system comprising:
the gyroscope is used for acquiring at least one of first angular velocity data and second angular velocity data, wherein the first angular velocity data and the second angular velocity data are angular velocity data with different attributes;
the main control chip is connected with a first output end and a second output end of the gyroscope and used for calculating to obtain jitter compensation data according to the first angular velocity data when the first angular velocity data is received through the first output end, and performing application processing according to the second angular velocity data when the first angular velocity data is received through the first output end;
the driving chip is connected with the main control chip and used for receiving the jitter compensation data sent by the main control chip and outputting an electric signal according to the jitter compensation data;
and the motor is used for receiving the electric signal output by the driving chip and driving the lens to move according to the electric signal.
A camera anti-shake method includes:
the method comprises the steps of controlling a gyroscope to obtain at least one of first angular velocity data and second angular velocity data, wherein the first angular velocity data and the second angular velocity data are angular velocity data with different attributes, and the gyroscope comprises a first output end and a second output end;
when the main control chip receives first angular velocity data output by the first output end, jitter compensation data is obtained through calculation according to the first angular velocity data, and when the main control chip receives second angular velocity data output by the second output end, application processing is carried out according to the second angular velocity data;
receiving jitter compensation data sent by the main control chip through a driving chip, and outputting an electric signal according to the jitter compensation data;
and receiving the electric signal output by the driving chip through a motor, and driving the lens to move according to the electric signal.
An electronic device comprising a memory and a processor, the memory having stored therein a computer program that, when executed by the processor, causes the processor to perform the steps of:
the method comprises the steps of controlling a gyroscope to obtain at least one of first angular velocity data and second angular velocity data, wherein the first angular velocity data and the second angular velocity data are angular velocity data with different attributes, and the gyroscope comprises a first output end and a second output end;
when the main control chip receives first angular velocity data output by the first output end, jitter compensation data is obtained through calculation according to the first angular velocity data, and when the main control chip receives second angular velocity data output by the second output end, application processing is carried out according to the second angular velocity data;
receiving jitter compensation data sent by the main control chip through a driving chip, and outputting an electric signal according to the jitter compensation data;
and receiving the electric signal output by the driving chip through a motor, and driving the lens to move according to the electric signal.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:
the method comprises the steps of controlling a gyroscope to obtain at least one of first angular velocity data and second angular velocity data, wherein the first angular velocity data and the second angular velocity data are angular velocity data with different attributes, and the gyroscope comprises a first output end and a second output end;
when the main control chip receives first angular velocity data output by the first output end, jitter compensation data is obtained through calculation according to the first angular velocity data, and when the main control chip receives second angular velocity data output by the second output end, application processing is carried out according to the second angular velocity data;
receiving jitter compensation data sent by the main control chip through a driving chip, and outputting an electric signal according to the jitter compensation data;
and receiving the electric signal output by the driving chip through a motor, and driving the lens to move according to the electric signal.
According to the camera anti-shake system and method, the electronic device and the computer readable storage medium, at least one of the first angular velocity data and the second angular velocity data can be collected through the gyroscope, the shake compensation data and the second angular velocity data are calculated through the main control chip according to the first angular velocity data respectively for application processing, and the driving chip can electrify the motor according to the shake compensation data so as to drive the lens to move. Therefore, the shaking condition of the lens can be detected according to the collected angular velocity data, and then the lens is driven to move in different driving directions, so that the shaking compensation of the lens is realized, and the accuracy of image collection is improved. In addition, the gyroscope in the camera anti-shake system can acquire angular velocity data with different attributes, and the main control chip can realize different processing according to the angular velocity data with different attributes, so that the corresponding gyroscopes do not need to be installed respectively for different processing, and the cost of the system is saved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a camera anti-shake system in one embodiment;
fig. 2 is a schematic structural diagram of a camera anti-shake system in another embodiment;
FIG. 3 is a schematic structural diagram of a camera anti-shake system in yet another embodiment;
FIG. 4 is a schematic diagram of a motor and a driver chip in one embodiment;
FIG. 5 is a schematic structural diagram of a camera anti-shake system in yet another embodiment;
FIG. 6 is a flowchart of a camera anti-shake method in one embodiment;
FIG. 7 is a flowchart of a camera anti-shake method in another embodiment;
FIG. 8 is a flowchart of a camera anti-shake method in yet another embodiment;
FIG. 9 is a flowchart of a camera anti-shake method in yet another embodiment;
FIG. 10 is a schematic diagram of an image processing circuit in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, the first angular velocity data may be referred to as second angular velocity data, and similarly, the second angular velocity data may be referred to as first angular velocity data, without departing from the scope of the present application. Both the first angular velocity data and the second angular velocity data are angular velocity data, but they are not the same angular velocity data.
Fig. 1 is a schematic structural diagram of a camera anti-shake system in one embodiment. As shown in fig. 1, the camera anti-shake system includes a gyroscope 102, a main control chip 104, a driving chip 106, and a motor 108. The gyroscope 102 includes a first output end and a second output end, the main control chip 104 is connected to the first output end and the second output end of the gyroscope 102, the main control chip 104 is connected to the driving chip 106, and the driving chip 106 is connected to the motor 108. Wherein:
a gyroscope 102 for acquiring at least one of first angular velocity data and second angular velocity data;
the main control chip 104 is configured to calculate jitter compensation data according to the first angular velocity data when receiving the first angular velocity data through the first output end, and perform application processing according to the second angular velocity data when receiving the first angular velocity data through the first output end;
the driving chip 106 is configured to receive the jitter compensation data sent by the main control chip 104, and output an electrical signal according to the jitter compensation data;
and the motor 108 is used for receiving the electric signal output by the driving chip 106 and driving the lens to move according to the electric signal.
In the embodiment of the application, the lens can collect light rays in a shooting scene, and the light rays collected by the lens are converted into images through the image sensor. The gyroscope can detect the shake of the lens, when the lens shakes, the acquired data can be sent to the main control chip to calculate the displacement generated by the lens, and then the motor is controlled to drive the lens to move according to the calculated displacement, so that the error generated by the shake is compensated, and the image blur caused by the shake of the lens is avoided.
The gyroscope is an angular motion detection device for detecting the angular motion of a momentum moment sensitive shell of a high-speed revolving body around a rotation axis orthogonal to an inertia space, and can include a piezoelectric gyroscope, a mechanical gyroscope, an optical fiber gyroscope, a laser gyroscope and the like, but is not limited thereto. The gyroscope can detect the angular velocity of the lens in one or more directions, so that the shake condition of the lens can be judged according to the detected angular velocity.
The gyroscope provided in this embodiment includes two output terminals, namely a first output terminal and a second output terminal, and can output two paths of data through the first output terminal and the second output terminal at the same time. The gyroscope can simultaneously acquire first angular velocity data and second angular velocity data with different attributes and respectively output the first angular velocity data and the second angular velocity data through the first output end and the second output end. Only one of the first angular velocity data and the second angular velocity data may be acquired and output through the first output terminal or the second output terminal.
Specifically, the first output end and the second output end may be connected to the main control chip through an SPI (Serial Peripheral Interface), or may be connected to the main control chip through another method, which is not limited thereto.
The attribute of the angular velocity data may be, but is not limited to, an output frequency of the angular velocity data, a measurement range, a bandwidth, and the like, where the output frequency refers to a frequency at which the gyroscope outputs the angular velocity data, the measurement range refers to a variation range of the angular velocity data measured by the gyroscope, and the bandwidth refers to a data amount of the angular velocity data output per unit time. For example, the first angular velocity data may be output at a frequency of 30HZ (hertz), and the second angular velocity data may be output at a frequency of 200HZ (hertz).
The gyroscope acquires first angular velocity data and/or second angular velocity data, and the first angular velocity data and/or the second angular velocity data can be respectively sent to the main control chip through the first output end and the second output end. The main control Chip may be an SOC (System on Chip), a CPU (Central Processing Unit), and the like, and is not limited herein. The main control chip can be used for carrying out anti-shake processing according to the first angular velocity data and carrying out application processing according to the second angular velocity data.
The application processing refers to processing an instruction initiated by an application program installed in the system, that is, the main control chip is a system-on-chip, which can implement both the anti-shake function of the lens and the processing of the application program. For example, the camera anti-shake system is installed in the electronic device, and other devices or application programs may also be installed, and the main control chip in the camera anti-shake system can process application instructions initiated by other devices or application programs in addition to the anti-shake function of the lens. The system-level main control chip has a powerful processing function, the anti-shake precision can be improved, the waste caused by installing the processing chip aiming at the camera anti-shake system can be avoided, and therefore the system cost is saved.
Specifically, the shake compensation data refers to data for compensating for shake generated by the lens, an algorithm for calculating the shake compensation data may be preset in the main control chip, and after the first angular velocity data is obtained, the shake compensation data may be calculated according to the first angular velocity data.
For example, the shake compensation data may specifically be an offset amount for compensating the lens, when the lens shakes, the lens may be offset by a certain distance in a certain direction, and the shake compensation data may be represented as a distance for compensating the lens in a direction opposite to the shake.
The driving chip (Driver Integrated Circuit) may include a single channel driving chip and a multi-channel driving chip, but is not limited thereto. The single-channel driving chip is a driving chip which only outputs one path of electric signals to the motor, and the multi-channel driving chip is a driving chip which can simultaneously output a plurality of paths of electric signals to the motor. It is understood that the single-channel driving chip is not limited to only one output terminal, and may have a plurality of output terminals, and only one output terminal outputs the electric signal to the motor. The electrical signal may be a current signal, a voltage signal, or other types of electrical signals, and is not limited herein.
The driving chip is connected with the motor, and after receiving the jitter compensation data sent by the main control chip, the driving chip can output an electric signal according to the jitter compensation data. The motor can be powered on according to the electric signal, and the motor after being powered on can drive the lens to move. The direction identification and the signal intensity that can carry in the signal of telecommunication can discern according to the direction identification and promote the camera lens and move in which direction, can promote the camera lens according to signal intensity and move different distances.
In one embodiment, the driving chips may include at least two single-channel driving chips, and the at least two single-channel driving chips respectively correspond to different driving directions. The main control chip is also used for calculating jitter compensation data corresponding to each driving direction according to the first angular velocity data and respectively sending the jitter compensation data of each driving direction to the corresponding single-channel driving chip; the single-channel driving chip is used for receiving the jitter compensation data sent by the main control chip and outputting an electric signal corresponding to the driving direction according to the jitter compensation data; the motor is also used for receiving the electric signal output by the single-channel driving chip and driving the lens to move in the corresponding driving direction according to the electric signal.
If the camera anti-shake system comprises at least two single-channel driving chips, signals in different driving directions can be transmitted through each single-channel driving chip. Specifically, the driving direction is used to indicate a direction in which the lens is subjected to shake compensation, that is, a direction in which the lens overcomes shake deviation. The driving directions of the lens can be preset, the main control chip can respectively calculate jitter compensation data corresponding to each driving direction according to the first angular velocity data, and then each jitter compensation data is sent to the corresponding single-channel driving chip.
After each single-channel driving chip receives the jitter compensation data, an electric signal is output according to the jitter compensation data. The electric signal output by the single-channel driving chip can contain signal intensity and direction identification, wherein the signal intensity is used for representing the magnitude of the output current, and the direction identification is used for representing the driving direction of the corresponding lens. And respectively outputting the electric signals with different signal strengths and direction identifications to corresponding motors, and driving the lens to move in the corresponding driving direction by the motors according to the electric signals and driving the lens to move by a distance corresponding to the signal strength.
Furthermore, the camera anti-shake system may further include at least two motors, that is, each single-channel driver chip is connected to one motor, and the at least two motors are connected to the lens. Thus, each motor corresponds to a driving direction, so that the lens is pushed to move in the corresponding driving direction.
For example, if two single-channel driver chips are installed in the electronic device, each single-channel driver chip is connected to one motor, and the two motors can respectively drive the lens to move in the x and y directions, the motors can drive the lens to move different distances in the x and y directions according to the signal strength of the electrical signal.
In the embodiments provided herein, the first angular velocity data and the second angular velocity data generated by the gyroscope are generated from the collected original angular velocity data, i.e., the gyroscope may collect the original angular velocity data first and then generate the first angular velocity data and the second angular velocity data from the original angular velocity data. For example, raw angular velocity data is collected at a frequency of 200HZ, and then first angular velocity data may be output at a frequency of 100HZ and second angular velocity data may be output at a frequency of 50HZ, respectively, from the collected raw angular velocity data. Therefore, the gyroscope is also used for acquiring original angular velocity data and generating first angular velocity data and/or second angular velocity data with different attributes according to the original angular velocity data.
In the camera anti-shake system, the main control chip may be further configured to obtain a first address corresponding to the first output end, obtain first attribute data corresponding to the first angular velocity data, and configure a register of the gyroscope according to the first address and the first attribute data; and/or acquiring a second address corresponding to the second output end, acquiring second attribute data corresponding to the second angular velocity data, and configuring a register of the gyroscope according to the second address and the second attribute data.
Specifically, the gyroscope may include a plurality of data output ends, each of the data output ends may correspond to an address, and when outputting data, the corresponding output end is searched for by the address, so that the data is output through the corresponding output end. The first address is an address corresponding to the first output terminal, the second address is an address corresponding to the second output terminal, the first output terminal can be found according to the first address, and the second output terminal can be found according to the second address.
The attribute data is used to indicate the attribute of the angular velocity data, and may specifically include, but is not limited to, the output frequency, the measurement range, the bandwidth, and the like of the angular velocity data. The first attribute data is for indicating an attribute of the first angular velocity data, the second attribute data is for indicating an attribute of the second angular velocity data, and the first attribute data and the second attribute data are different. For example, the first attribute data may be an output frequency of 25HZ, a measurement range of-30 degrees/sec to 30 degrees/sec; the first attribute data may be an output frequency of 100HZ and a measurement range of-150 degrees/sec to 150 degrees/sec.
Before the gyroscope collects the angular velocity, the parameters of the gyroscope can be configured, mainly the attribute of the angular velocity data output by the gyroscope and the corresponding output end address are configured. Specifically, configuration parameters may be written in a register corresponding to the gyroscope, that is, an address and attribute data of the output terminal may be written correspondingly. I.e. a first address and corresponding first attribute data are written to the register and a second address and corresponding second attribute data are written to the register. Therefore, the angular velocity data corresponding to the first attribute data can be output through the output end corresponding to the first address, and the angular velocity data corresponding to the second attribute data can be output through the output end corresponding to the second address.
In this embodiment of the present application, the main control chip is further configured to, when an image acquisition instruction is detected, obtain a target application identifier of a target application program that initiates the image acquisition instruction; and acquiring first attribute data corresponding to the first angular velocity data according to the target application identifier.
It is to be understood that the image capture instruction is an instruction for capturing an image, and when the image capture instruction is detected, the image sensor is powered on to capture the image. After an image acquisition instruction is detected, first angular velocity data can be acquired through a gyroscope, and anti-shake processing on a lens is achieved according to the first angular velocity data. Thus, when an image capture instruction is detected, the corresponding attribute may be adjusted according to the target application that initiated the image capture instruction. For example, an application program requiring relatively high data accuracy may control the gyroscope to output high-frequency angular velocity data.
Specifically, the image capturing instruction may include a target application identifier of the target application program, and the target application identifier may uniquely identify the target application program. And pre-establishing a corresponding relation between the application identifier and the first attribute data, and acquiring the first attribute data corresponding to the target application identifier according to the pre-established corresponding relation.
In one embodiment, the gyroscope is further configured to generate first angular velocity data corresponding to the first attribute data according to the original angular velocity data, read a first address in the register, and output the first angular velocity data through a first output terminal corresponding to the read first address; and/or generating second angular velocity data corresponding to the second attribute data according to the original angular velocity data, reading a second address in the register, and outputting the second angular velocity data through a second output end corresponding to the read second address. Before the gyroscope collects the angular velocity data, reading attribute data of the angular velocity data in a register, generating corresponding angular velocity data according to the read attribute data, reading an output end address of the output angular velocity data in the register, and outputting the generated angular velocity data through an output end corresponding to the read address.
The camera anti-shake system comprises a gyroscope, a main control chip, a driving chip and a motor, wherein first angular velocity data and/or second angular velocity data can be collected through the gyroscope, shaking compensation data and the second angular velocity data are calculated through the main control chip according to the first angular velocity data respectively to be applied and processed, and the driving chip can electrify the motor according to the shaking compensation data so as to drive the lens to move. Therefore, the shaking condition of the lens can be detected according to the collected angular velocity data, and then the lens is driven to move in different driving directions, so that the shaking compensation of the lens is realized, and the accuracy of image collection is improved. In addition, the gyroscope in the camera anti-shake system can acquire angular velocity data with different attributes, and the main control chip can realize different processing according to the angular velocity data with different attributes, so that the corresponding gyroscopes do not need to be installed respectively for different processing, and the cost of the system is saved.
Fig. 2 is a schematic structural diagram of a camera anti-shake system in another embodiment. As shown in fig. 2, the camera anti-shake system includes a gyroscope 102, a main control chip 104, a single-channel driving chip 1060, a single-channel driving chip 1062, and a motor 108. The gyroscope 102 includes a first output end and a second output end, the main control chip 104 is connected to the first output end and the second output end of the gyroscope 102, the main control chip 104 is connected to the single-channel driving chip 1060 and the single-channel driving chip 1062, and the single-channel driving chip 1060 and the single-channel driving chip 1062 are both connected to the motor 108. Wherein:
a gyroscope 102 for acquiring at least one of first angular velocity data and second angular velocity data;
the main control chip 104 is connected with the first output end and the second output end of the gyroscope, and is used for calculating jitter compensation data corresponding to each driving direction according to the first angular velocity data when the first angular velocity data is received through the first output end, respectively sending the jitter compensation data of each driving direction to the single-channel driving chip 1060 and the single-channel driving chip 1062, and performing application processing according to the second angular velocity data when the first angular velocity data is received through the first output end;
the single-channel driving chip 1060 and the single-channel driving chip 1062 are configured to receive the jitter compensation data sent by the main control chip 104, and output an electrical signal corresponding to a driving direction according to the jitter compensation data;
the motor 108 receives the electrical signals output by the single-channel driver chip 1060 and the single-channel driver chip 1062, and drives the lens to move in the corresponding driving direction according to the electrical signals.
In the embodiment of the present application, the gyroscope may be two-axis, four-axis, or the like, but is not limited thereto. The angular velocity data collected by the gyroscope may represent an angle of rotation of the lens in a unit time period, for example, the angular velocity data may be 60 degrees/second, 12 degrees/second, 34 degrees/second, and the like, which is not limited herein.
In the process of shooting an image, if the lens shakes, the image is shifted. The shake of the lens may be multi-directional, for example, a three-dimensional rectangular coordinate system is established for the lens, and then the shake direction of the lens can be represented by vectors in three directions. Therefore, when the lens is subjected to shake compensation, the lens can be compensated from a plurality of directions.
The driving direction is used for indicating the direction of the shake compensation of the lens, namely the direction of the lens for overcoming the shake deviation. The driving direction of the lens can be preset, after the main control chip receives the first angular velocity data, the main control chip can calculate the offset of the lens in any direction according to the first angular velocity data, and then calculate the shake compensation data of the lens in each driving direction according to the offset of the lens.
The corresponding relation between the first angular velocity data and the shake compensation data can be preset, and after the first angular velocity data collected by the gyroscope is read, the corresponding shake compensation data can be obtained through calculation according to the first angular velocity data. The shake compensation data may include compensation offsets corresponding to the lens in different driving directions, and the lens may be driven to move in the different driving directions according to the shake compensation data, thereby realizing compensation for shake.
In one embodiment, a fitting function may be established in advance, the lens may be controlled to shake before an image is captured, reference angular velocity data and an offset of the lens during a shaking process of the lens are collected by a gyroscope, and corresponding reference shaking compensation data may be obtained according to the offset of the lens. And then calculating a constant in the fitting function according to the collected reference angular velocity data and the reference shake compensation data. And finally, substituting the calculated constant into a fitting function to establish a model, namely obtaining the model representing the corresponding relation between the first angular velocity data and the jitter compensation data.
For example, the fitting function may be expressed as
Figure BDA0002007178410000111
Wherein x represents first angular velocity data collected by a gyroscope, y (x, w) represents shake compensation data of a lens, and wjJ may be any natural number, and is not limited herein. Determining each constant wjThe correspondence between the first angular velocity data and the shake compensation data can then be established.
Specifically, the main control chip may include at least two output terminals, each of which is connected to one single-channel driver chip, and then outputs the corresponding jitter compensation data through each of the output terminals. The electric signal output by the single-channel driving chip can contain signal intensity and direction identification, wherein the signal intensity is used for representing the magnitude of the output current, and the direction identification is used for representing the driving direction of the lens. The motor can be powered on according to the direction identification and the signal strength contained in the electric signal, so that the lens is driven to move in different directions by corresponding distances.
For example, main control chip includes output A and output B, and single channel driver chip includes single channel driver chip A and single channel driver chip B, and main control chip output A is connected with single channel driver chip A, and main control chip output B is connected with single channel driver chip B, and single channel driver chip A and single channel driver chip B correspond drive direction X and drive direction Y respectively. When the main control chip sends the jitter compensation data, the jitter compensation data corresponding to the driving direction X may be output from the output terminal a to the driving chip a, and the jitter compensation data corresponding to the driving direction Y may be output from the output terminal B to the driving chip B.
In one embodiment, the main control chip is connected to each single-channel driver chip through an Inter-Integrated Circuit (IIC) bus, and each single-channel driver chip corresponds to an IIC address. When the main control chip sends data to the single-channel drive chip, the IIC address can be searched first, the IIC connected with the drive chip is searched, and then the IIC is transmitted to the corresponding drive chip. Specifically, the main control chip may obtain an IIC address corresponding to each single-channel driver chip, and send jitter compensation data in each driving direction to the corresponding single-channel driver chip according to the obtained IIC address.
After receiving the electric signal output by the single-channel driving chip, the motor can be powered on according to the electric signal and generate a corresponding magnetic field after being powered on, and the lens is driven to move in the corresponding driving direction, so that the lens is controlled to compensate for the shake through the shift generated by the movement.
In one embodiment, a two-dimensional rectangular coordinate system may be established with a plane where an image sensor corresponding to a lens is located, and an origin position of the two-dimensional coordinate system is not further limited in this application. The shake compensation data may be understood as a vector offset in a two-dimensional coordinate system of a position after lens shake and a position before lens shake, that is, a vector distance of the position after lens shake with respect to the position before lens shake.
The lens moves during the shaking process, and the image sensor is kept still, so that the image collected after the lens is moved has a certain offset.
Above-mentioned camera anti-shake system can listen the shake condition of camera lens according to the angular velocity data of gathering, then calculates the signal of telecommunication corresponding to different driving directions through two at least single channel driver chips to the drive camera lens moves on different driving directions, with the compensation of realization to the camera lens shake, has improved the accuracy of gathering the image. In addition, the gyroscope in the camera anti-shake system can acquire angular velocity data with different attributes, and the main control chip can realize different processing according to the angular velocity data with different attributes, so that the corresponding gyroscopes do not need to be installed respectively for different processing, and the cost of the system is saved.
Fig. 3 is a schematic structural diagram of a camera anti-shake system in yet another embodiment. As shown in fig. 3, the camera anti-shake system includes a main board 10 and a camera module 12, wherein a gyroscope 102, a main control chip 104 and a driving chip 106 are disposed on the main board 10, and a motor 108 and a lens 110 are disposed in the camera module 12. The driving chip 106 is further provided with a hall sensor 1064. The hall sensor 1064 is used to collect the position data of the lens 110; the driving chip 106 may output an electrical signal according to the jitter compensation data and the position data collected by the hall sensor 1064.
Specifically, a Hall sensor (Hall sensor) is a magnetic field sensor made according to the Hall effect, which is essentially the deflection of moving charged particles in a magnetic field caused by the action of lorentz forces. When charged particles (electrons or holes) are confined in a solid material, this deflection causes an accumulation of positive and negative charges in the direction of the perpendicular current and magnetic field, thereby creating an additional transverse electric field.
The Hall sensor can detect the position of the lens and feed the detected position of the lens back to the driving chip, and the driving chip can output an electric signal by combining the position of the lens. Specifically, a coordinate system may be established for a plane where the lens is located, for example, the coordinate system may be established with an initial position of the lens when the lens does not shake as an origin, so as to determine coordinates of the lens in the coordinate system according to hall values output by the hall sensors, that is, to determine position data of the lens. The plane where the lens is located generally refers to a plane where the lens is located and is parallel to the image sensor corresponding to the lens.
In one embodiment, the Motor 108 is a Voice Coil Motor (VCM), and the driving chip 106 is disposed in the VCM 108. Therefore, the space of the camera anti-shaking system can be saved, and the system stability is improved.
Fig. 4 is a schematic structural diagram of a motor and a driving chip in one embodiment. As shown in fig. 4, the motor 108 is a voice coil motor, and the driving chip 106 may be disposed in the coil of the motor 108, so as to reduce the area occupied by the driving chip and improve the system stability. The camera anti-shake system may further include a rail 112, a magnet 114, a lens holder 116, and a ball 118, wherein the lens holder 116 is used for fixing the lens. As can be seen from the left-hand law, after the motor 108 is powered on, the current in the coil and the magnetic field formed by the magnet 114 generate an ampere force, the ampere force pushes the ball 118 to move in the track 112, and the movement of the ball 118 drives the movement of the lens holder 116, so as to move the lens.
Therefore, when the motor drives the lens to move, the positions where the lens stays are different, the magnetic field where the lens stays also changes, and the current electrified by the motor is also influenced. The single-channel driving chip can output an electrical signal according to the shake compensation data and the position data of the lens.
According to the camera anti-shake system, the shake condition of the lens can be detected according to the collected angular velocity data, the shake compensation data is calculated according to the angular velocity data, and then the motor is powered on according to the electric signals output by the shake compensation data and the position data of the lens, so that the lens is driven to move, the shake compensation of the lens is realized, and the accuracy of image collection is improved.
Fig. 5 is a schematic structural diagram of a camera anti-shake system in yet another embodiment. As shown in fig. 5, the camera anti-shake system includes a gyroscope 502, a main control chip 504, a first driving chip 506, a second driving chip 508, a first motor 520, a first lens 522, a second motor 540, and a second lens 542. The gyroscope 502 includes a first output end and a second output end, the main control chip 504 is connected to the first output end and the second output end of the gyroscope 502, the main control chip 504 is further connected to the first driving chip 506 and the second driving chip 508, the first driving chip 506 is connected to the first motor 520, the first motor 520 is connected to the first lens 522, the second driving chip 508 is connected to the second motor 540, and the second motor 540 is connected to the second lens 542. The gyroscope 502, the main control chip 504, the first driving chip 506, and the second driving chip 508 are disposed on the main board 50, the first motor 520 and the first lens 522 are disposed in the first camera module 52, and the second motor 540 and the second lens 542 are disposed in the second camera module 54.
The gyroscope 502 is configured to obtain at least one of first angular velocity data and second angular velocity data, where the first angular velocity data and the second angular velocity data are output through a first output terminal and a second output terminal, respectively;
the main control chip 504 is configured to calculate first jitter compensation data and second jitter compensation data according to the first angular velocity data when the first angular velocity data is received through the first output end, send the first jitter compensation data to the first driver chip 506, send the second jitter compensation data to the second driver chip 508, and perform application processing according to the second angular velocity data when the first angular velocity data is received through the first output end;
a first driving chip 506, configured to receive the first jitter compensation data sent by the main control chip 504 and output a first electrical signal according to the first jitter compensation data;
a second driving chip 508, configured to receive the second jitter compensation data sent by the main control chip 504, and output a second electrical signal according to the second jitter compensation data;
a first motor 520, configured to receive the first electrical signal output by the first driving chip 506, and drive the first lens 522 to move according to the first electrical signal;
the second motor 540 is configured to receive a second electrical signal output by the second driving chip 508, and drive the second lens 542 to move according to the second electrical signal.
Specifically, the camera anti-shake system may include a lens, or may include two or more lenses, so that when the lens is anti-shake, a corresponding motor and a corresponding driving chip may be respectively disposed on each lens, thereby implementing the anti-shake function.
The camera anti-shake system can detect the shake condition of the lens according to the collected angular velocity data, and then drives the at least two lenses to move according to the angular velocity data so as to realize the shake compensation of the at least two lenses and improve the accuracy of image collection.
In an embodiment, a first hall sensor may be further disposed in the first camera module 52, the first hall sensor is connected to the first driving chip 506, and the first hall sensor is configured to acquire first position data of the first lens 522 and send the first position data to the first driving chip 506. The first driving chip 508 is further configured to receive the first jitter compensation data sent by the main control chip 504, receive the first position data sent by the first hall sensor, and output a first electrical signal according to the first jitter compensation data and the first position data.
The second camera module 54 may further include a second hall sensor, the second hall sensor is connected to the second driving chip 508, and the second hall sensor is configured to obtain second position data of the second lens 542 and send the second position data to the second driving chip 508. The second driving chip 508 is further configured to receive the second jitter compensation data sent by the main control chip 504, receive the second position data sent by the second hall sensor, and output a second electrical signal according to the second jitter compensation data and the second position data.
In the embodiment provided by the present application, the first driving chip 506 may further include at least two first single-channel driving chips, where the at least two first single-channel driving chips respectively correspond to 522 different first driving directions of the first lens, and the second driving chip 508 includes at least two second single-channel driving chips, where the at least two second single-channel driving chips respectively correspond to different second driving directions of the second lens 542;
the main control chip is further used for calculating first jitter compensation data corresponding to each first driving direction according to the first angular velocity data, sending the first jitter compensation data of each first driving direction to the corresponding first single-channel driving chip respectively, calculating second jitter compensation data corresponding to each second driving direction according to the second angular velocity data, and sending the second jitter compensation data of each second driving direction to the corresponding second single-channel driving chip respectively;
the first single-channel driving chip is used for receiving first jitter compensation data sent by the main control chip and outputting first electric signals corresponding to each first driving direction according to the first jitter compensation data;
the second single-channel driving chip is used for receiving second jitter compensation data sent by the main control chip and outputting second electric signals corresponding to each second driving direction according to the second jitter compensation data;
the first motor is also used for receiving a first electric signal output by the first single-channel driving chip and driving the first lens to move in the corresponding first driving direction according to the first electric signal;
the second motor is further used for receiving a second electric signal output by the second single-channel driving chip and driving the second lens to move in a corresponding second driving direction according to the second electric signal.
Fig. 6 is a flowchart of a camera anti-shake method in an embodiment. As shown in fig. 6, the camera anti-shake method includes steps 602 to 608. Wherein:
step 602, controlling a gyroscope to obtain at least one of first angular velocity data and second angular velocity data, where the first angular velocity data and the second angular velocity data are angular velocity data with different attributes, and the gyroscope includes a first output end and a second output end.
Step 604, when the main control chip receives the first angular velocity data output by the first output end, calculating to obtain jitter compensation data according to the first angular velocity data, and when the main control chip receives the second angular velocity data output by the second output end, performing application processing according to the second angular velocity data.
And 606, receiving the jitter compensation data sent by the main control chip through the driving chip, and outputting an electric signal according to the jitter compensation data.
The step of outputting the electrical signal may specifically include: the position data of the lens is collected through a Hall sensor arranged in a driving chip, and an electric signal is output according to the jitter compensation data and the position data.
And step 608, receiving the electric signal output by the driving chip through the motor, and driving the lens to move according to the electric signal.
After the lens is driven to move, the image sensor corresponding to the lens can be controlled to be powered on, so that an image is generated by powering on. Step 606 may be followed by: controlling an image sensor corresponding to a lens to be electrified, collecting a target image, acquiring target position data of the lens when the target image is collected, determining an image offset corresponding to the target position data according to a preset conversion function, and compensating the target image according to the image offset.
The target position data is the position of the lens when the target image is acquired, and the position is expressed in the coordinate system, so that the lens offset of the lens relative to the coordinate origin can be obtained according to the target position data. The preset conversion function can be obtained according to a specific calibration mode, and the preset conversion function can be used for converting the position information of the lens offset into the image offset, namely converting the lens offset into the image offset. For example, the lens shift amount of the lens in the XY plane along the x-axis and the lens shift amount along the y-axis may be substituted into the corresponding variables in the preset shift conversion function, and the corresponding image shift amount d1 may be obtained by calculation.
According to the camera anti-shake method, the first angular velocity data and/or the second angular velocity data are/is acquired through the gyroscope, the shake compensation data and the second angular velocity data are calculated through the main control chip according to the first angular velocity data respectively for application processing, and the driving chip can electrify the motor according to the shake compensation data so as to drive the lens to move. Therefore, the shaking condition of the lens can be detected according to the collected angular velocity data, and then the lens is driven to move in different driving directions, so that the shaking compensation of the lens is realized, and the accuracy of image collection is improved. In addition, the gyroscope in the camera anti-shake system can acquire angular velocity data with different attributes, and the main control chip can realize different processing according to the angular velocity data with different attributes, so that the corresponding gyroscopes do not need to be installed respectively for different processing, and the cost of the system is saved.
Fig. 7 is a flowchart of a camera anti-shake method in another embodiment. As shown in fig. 7, the camera anti-shake method includes steps 702 to 708. Wherein:
step 702, controlling a gyroscope to collect original angular velocity data and generate at least one of first angular velocity data and second angular velocity data according to the original angular velocity data, wherein the gyroscope includes a first output end and a second output end.
Before generating the first angular velocity data and/or the second angular velocity data with different attributes according to the original angular velocity data, at least one of the following steps is further included: acquiring a first address corresponding to a first output end, acquiring first attribute data corresponding to first angular velocity data, and configuring a register of the gyroscope according to the first address and the first attribute data; and acquiring a second address corresponding to the second output end, acquiring second attribute data corresponding to the second angular velocity data, and configuring a register of the gyroscope according to the second address and the second attribute data.
In an embodiment, the step of acquiring the first attribute data may specifically include: when an image acquisition instruction is detected, acquiring a target application identifier of a target application program which initiates the image acquisition instruction; and acquiring first attribute data corresponding to the first angular velocity data according to the target application identifier.
In one embodiment, the step of generating angular velocity data specifically comprises at least one of the following steps: generating first angular velocity data corresponding to the first attribute data according to the original angular velocity data, reading a first address in a register, and outputting the first angular velocity data through a first output end corresponding to the read first address; and generating second angular velocity data corresponding to the second attribute data according to the original angular velocity data, reading a second address in the register, and outputting the second angular velocity data through a second output end corresponding to the read second address.
Step 704, when the main control chip receives the first angular velocity data output by the first output end, calculating the jitter compensation data corresponding to each driving direction according to the first angular velocity data, and sending the jitter compensation data of each driving direction to the corresponding single-channel driving chip, when the main control chip receives the second angular velocity data output by the second output end, performing application processing according to the second angular velocity data.
And step 706, receiving the jitter compensation data sent by the main control chip through the single-channel driving chip, and outputting an electric signal corresponding to the driving direction according to the jitter compensation data.
And 708, receiving the electric signal output by the single-channel driving chip through a motor, and driving the lens to move in the corresponding driving direction according to the electric signal.
According to the camera anti-shake method, the shake condition of the lens can be detected according to the collected angular velocity data, and then the electric signals corresponding to different driving directions are calculated through the at least two single-channel driving chips, so that the lens is driven to move in different driving directions, the shake compensation of the lens is realized, and the accuracy of image collection is improved. In addition, the gyroscope in the camera anti-shake system can acquire angular velocity data with different attributes, and the main control chip can realize different processing according to the angular velocity data with different attributes, so that the corresponding gyroscopes do not need to be installed respectively for different processing, and the cost of the system is saved.
In one embodiment, the driving chip may include a first driving chip and a second driving chip, the motor includes a first motor and a second motor, and the lens includes a first lens and a second lens. As shown in fig. 8, the camera shake prevention method may further include:
step 802, calculating to obtain first jitter compensation data and second jitter compensation data according to the first angular velocity data.
And step 804, receiving the first jitter compensation data sent by the main control chip through the first driving chip, outputting a first electrical signal according to the first jitter compensation data, receiving the second jitter compensation data sent by the main control chip through the second driving chip, and outputting a second electrical signal according to the second jitter compensation data.
Step 806, the first motor is used for receiving the first electrical signal output by the first driving chip, driving the first lens to move according to the first electrical signal, the second motor is used for receiving the second electrical signal output by the second driving chip, and driving the second lens to move according to the second electrical signal.
The camera shake detection method has the advantages that the camera shake condition of the camera lens is detected according to the collected angular velocity data, and then at least two camera lenses are driven to move according to the angular velocity data, so that the camera shake compensation of the at least two camera lenses is realized, and the accuracy of image collection is improved.
In an embodiment, the first driving chip includes at least two first single-channel driving chips, the at least two first single-channel driving chips respectively correspond to different first driving directions of the first lens, the second driving chip includes at least two second single-channel driving chips, and the at least two second single-channel driving chips respectively correspond to different first driving directions of the second lens. As shown in fig. 9, the camera shake prevention method may further include:
step 902, calculating first jitter compensation data corresponding to each first driving direction according to the first angular velocity data, sending the first jitter compensation data of each first driving direction to the corresponding first single-channel driving chip, calculating second jitter compensation data corresponding to each second driving direction according to the first angular velocity data, and sending the second jitter compensation data of each second driving direction to the corresponding second single-channel driving chip.
And 904, receiving the first jitter compensation data sent by the main control chip through the first single-channel driving chip, outputting first electric signals corresponding to each first driving direction according to the first jitter compensation data, receiving the second jitter compensation data sent by the main control chip through the second single-channel driving chip, and outputting second electric signals corresponding to each second driving direction according to the second jitter compensation data.
Step 906, receiving a first electrical signal output by the first single-channel driving chip through the first motor, driving the first lens to move in the corresponding first driving direction according to the first electrical signal, receiving a second electrical signal output by the second single-channel driving chip through the second motor, and driving the second lens to move in the corresponding second driving direction according to the second electrical signal.
It will be understood that, although the various steps in the flow charts of fig. 6-9 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Also, at least some of the steps in fig. 6-9 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least some of the sub-steps or stages of other steps.
The embodiment of the application also provides the electronic equipment. The electronic device includes therein an Image Processing circuit, which may be implemented using hardware and/or software components, and may include various Processing units defining an ISP (Image Signal Processing) pipeline. FIG. 10 is a schematic diagram of an image processing circuit in one embodiment. As shown in fig. 10, for convenience of explanation, only aspects of the image processing technology related to the embodiments of the present application are shown.
As shown in fig. 10, the image processing circuit includes an ISP processor 1040 and control logic 1050. The image data captured by the imaging device 1010 is first processed by the ISP processor 1040, and the ISP processor 1040 analyzes the image data to capture image statistics that may be used to determine and/or control one or more parameters of the imaging device 1010. The imaging device 1010 may include a camera with one or more lenses 1012 and an image sensor 1014. The image sensor 1014 may include an array of color filters (e.g., Bayer filters), and the image sensor 1014 may acquire light intensity and wavelength information captured with each imaging pixel of the image sensor 1014 and provide a set of raw image data that may be processed by the ISP processor 1040. The sensor 1020 (e.g., a gyroscope) may provide parameters of the acquired image processing (e.g., anti-shake parameters) to the ISP processor 1040 based on the type of sensor 1020 interface. The sensor 1020 interface may utilize an SMIA (Standard Mobile Imaging Architecture) interface, other serial or parallel camera interfaces, or a combination of the above.
In addition, the image sensor 1014 may also send raw image data to the sensor 1020, the sensor 1020 may provide the raw image data to the ISP processor 1040 based on the type of interface of the sensor 1020, or the sensor 1020 may store the raw image data in the image memory 1030.
The ISP processor 1040 processes the raw image data pixel by pixel in a variety of formats. For example, each image pixel may have a bit depth of 8, 10, 12, or 14 bits, and ISP processor 1040 may perform one or more image processing operations on the raw image data, gathering statistical information about the image data. Wherein the image processing operations may be performed with the same or different bit depth precision.
ISP processor 1040 may also receive image data from image memory 1030. For example, the sensor 1020 interface sends raw image data to the image memory 1030, and the raw image data in the image memory 1030 is then provided to the ISP processor 1040 for processing. The image Memory 1030 may be part of a Memory device, a storage device, or a separate dedicated Memory within an electronic device, and may include a DMA (Direct Memory Access) feature.
Upon receiving raw image data from image sensor 1014 interface or from sensor 1020 interface or from image memory 1030, ISP processor 1040 may perform one or more image processing operations, such as temporal filtering. The processed image data may be sent to image memory 1030 for additional processing before being displayed. ISP processor 1040 receives processed data from image memory 1030 and performs image data processing on the processed data in the raw domain and in the RGB and YCbCr color spaces. The image data processed by ISP processor 1040 may be output to display 1070 for viewing by a user and/or further processed by a Graphics Processing Unit (GPU). Further, the output of ISP processor 1040 may also be sent to image memory 1030, and display 1070 may read image data from image memory 1030. In one embodiment, image memory 1030 may be configured to implement one or more frame buffers. Further, the output of the ISP processor 1040 may be transmitted to the encoder/decoder 1060 for encoding/decoding the image data. The encoded image data may be saved and decompressed before being displayed on a display 1070 device. The encoder/decoder 1060 may be implemented by a CPU or GPU or coprocessor.
The statistics determined by the ISP processor 1040 may be sent to the control logic 1050 unit. For example, the statistical data may include image sensor 1014 statistics such as auto-exposure, auto-white balance, auto-focus, flicker detection, black level compensation, lens 1012 shading correction, and the like. Control logic 1050 may include a processor and/or microcontroller that executes one or more routines (e.g., firmware) that may determine control parameters of imaging device 1010 and ISP processor 1040 based on the received statistical data. For example, the control parameters of the imaging device 1010 may include sensor 1020 control parameters (e.g., gain, integration time for exposure control, anti-shake parameters, etc.), camera flash control parameters, lens 1012 control parameters (e.g., focal length for focusing or zooming), or a combination of these parameters. The ISP control parameters may include gain levels and color correction matrices for automatic white balance and color adjustment (e.g., during RGB processing), as well as lens 1012 shading correction parameters.
In one embodiment, the steps of the camera anti-shake method provided by the above-mentioned embodiment can be implemented by using the image processing technology in fig. 10.
The embodiment of the application also provides a computer readable storage medium. One or more non-transitory computer-readable storage media containing computer-executable instructions that, when executed by one or more processors, cause the processors to perform the steps of the camera anti-shake method provided by the above-described embodiments.
A computer program product containing instructions which, when run on a computer, cause the computer to perform the camera anti-shake method provided by the above embodiments.
Any reference to memory, storage, database, or other medium used by embodiments of the present application may include non-volatile and/or volatile memory. Suitable non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM), which acts as external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synchronous Link (Synchlink) DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and bus dynamic RAM (RDRAM).
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (18)

1. A camera anti-shake system, comprising:
the gyroscope is used for acquiring original angular velocity data and generating at least one of first angular velocity data and second angular velocity data according to the original angular velocity data, wherein the first angular velocity data and the second angular velocity data are angular velocity data with different attributes;
the main control chip is connected with a first output end and a second output end of the gyroscope and used for calculating to obtain jitter compensation data according to a target fitting function and the first angular velocity data when the first angular velocity data is received through the first output end, and performing application processing according to the second angular velocity data when the second angular velocity data is received through the second output end; the main control chip is also used for acquiring a target application identifier of a target application program which initiates the image acquisition instruction when the image acquisition instruction is detected; acquiring first attribute data corresponding to the first angular velocity data according to the target application identifier; the determination of the target fitting function is as follows: presetting a reference fitting function, bringing lens reference angular velocity information and corresponding jitter compensation information collected in a lens jitter process into the reference fitting function to obtain a fitting parameter constant of the reference fitting function, and establishing a target fitting function according to the obtained fitting parameter;
the driving chip is connected with the main control chip and used for receiving the jitter compensation data sent by the main control chip and outputting an electric signal according to the jitter compensation data;
and the motor is used for receiving the electric signal output by the driving chip and driving the lens to move according to the electric signal.
2. The camera anti-shake system according to claim 1, wherein the main control chip is further configured to obtain a first address corresponding to the first output terminal, obtain first attribute data corresponding to the first angular velocity data, and configure a register of the gyroscope according to the first address and the first attribute data; and/or acquiring a second address corresponding to the second output end, acquiring second attribute data corresponding to the second angular velocity data, and configuring a register of the gyroscope according to the second address and the second attribute data.
3. The camera anti-shake system according to claim 2, wherein the gyroscope is further configured to generate first angular velocity data corresponding to first attribute data according to the original angular velocity data, read the first address in the register, and output the first angular velocity data through a first output terminal corresponding to the read first address; and/or generating second angular velocity data corresponding to second attribute data according to the original angular velocity data, reading the second address in the register, and outputting the second angular velocity data through a second output end corresponding to the read second address.
4. The camera anti-shake system according to claim 1, wherein the driver chips include at least two single-channel driver chips, and the at least two single-channel driver chips correspond to different driving directions, respectively;
the main control chip is also used for calculating jitter compensation data corresponding to each driving direction according to the first angular velocity data and respectively sending the jitter compensation data of each driving direction to the corresponding single-channel driving chip;
the single-channel driving chip is used for receiving jitter compensation data sent by the main control chip and outputting an electric signal corresponding to the driving direction according to the jitter compensation data;
the motor is also used for receiving the electric signal output by the single-channel driving chip and driving the lens to move in the corresponding driving direction according to the electric signal.
5. The camera anti-shake system according to claim 1, wherein a hall sensor is disposed in the driving chip, and the hall sensor is used for acquiring position data of the lens;
the driving chip is also used for outputting an electric signal according to the jitter compensation data and the position data.
6. The camera anti-shake system according to claim 1, wherein the motor is a voice coil motor, and the driver chip is disposed in the voice coil motor.
7. The camera anti-shake system according to claim 1, wherein the driver chip includes a first driver chip and a second driver chip, the motor includes a first motor and a second motor, and the lens includes a first lens and a second lens;
the main control chip is also used for calculating to obtain first jitter compensation data and second jitter compensation data according to the first angular velocity data;
the first driving chip is used for receiving first jitter compensation data sent by the main control chip and outputting a first electric signal according to the first jitter compensation data;
the first motor is used for receiving the first electric signal output by the first driving chip and driving the first lens to move according to the first electric signal;
the second driving chip is used for receiving second jitter compensation data sent by the main control chip and outputting a second electric signal according to the second jitter compensation data;
the second motor is used for receiving the second electric signal output by the second driving chip and driving the second lens to move according to the second electric signal.
8. The camera anti-shake system according to claim 7, wherein the first driver chip comprises at least two first single-channel driver chips, the at least two first single-channel driver chips respectively corresponding to different first driving directions of the first lens, and the second driver chip comprises at least two second single-channel driver chips, the at least two second single-channel driver chips respectively corresponding to different second driving directions of the second lens;
the main control chip is further configured to calculate first jitter compensation data corresponding to each first driving direction according to the first angular velocity data, send the first jitter compensation data of each first driving direction to a corresponding first single-channel driving chip, calculate second jitter compensation data corresponding to each second driving direction according to the first angular velocity data, and send the second jitter compensation data of each second driving direction to a corresponding second single-channel driving chip;
the first single-channel driving chip is used for receiving first jitter compensation data sent by the main control chip and outputting first electric signals corresponding to the first driving directions according to the first jitter compensation data;
the second single-channel driving chip is used for receiving second jitter compensation data sent by the main control chip and outputting second electric signals corresponding to the second driving directions according to the second jitter compensation data;
the first motor is further configured to receive the first electrical signal output by the first single-channel driver chip and drive the first lens to move in the corresponding first driving direction according to the first electrical signal;
the second motor is further configured to receive the second electrical signal output by the second single-channel driver chip, and drive the second lens to move in the corresponding second driving direction according to the second electrical signal.
9. The camera anti-shake system according to any one of claims 1 to 8, wherein the camera anti-shake system includes a main board and a camera module, the gyroscope, a main control chip, and a driving chip are disposed on the main board, and the motor is disposed in the camera module.
10. A camera anti-shake method is characterized by comprising the following steps:
controlling a gyroscope to collect original angular velocity data and generate at least one of first angular velocity data and second angular velocity data according to the original angular velocity data, wherein the first angular velocity data and the second angular velocity data are angular velocity data with different attributes, and the gyroscope comprises a first output end and a second output end;
when an image acquisition instruction is detected, acquiring a target application identifier of a target application program which initiates the image acquisition instruction; acquiring first attribute data corresponding to first angular velocity data according to the target application identifier;
when the main control chip receives first angular velocity data output by the first output end, jitter compensation data are obtained through calculation according to a target fitting function and the first angular velocity data, and when the main control chip receives second angular velocity data output by the second output end, application processing is carried out according to the second angular velocity data;
the determination of the target fitting function is as follows: presetting a reference fitting function, bringing lens reference angular velocity information and corresponding jitter compensation information collected in a lens jitter process into the reference fitting function to obtain a fitting parameter constant of the reference fitting function, and establishing a target fitting function according to the obtained fitting parameter;
receiving jitter compensation data sent by the main control chip through a driving chip, and outputting an electric signal according to the jitter compensation data;
and receiving the electric signal output by the driving chip through a motor, and driving the lens to move according to the electric signal.
11. The camera anti-shake method according to claim 10, wherein before generating at least one of the first angular velocity data and the second angular velocity data from the original angular velocity data, further comprising at least one of:
acquiring a first address corresponding to the first output end, acquiring first attribute data corresponding to the first angular velocity data, and configuring a register of the gyroscope according to the first address and the first attribute data;
and acquiring a second address corresponding to the second output end, acquiring second attribute data corresponding to the second angular velocity data, and configuring a register of the gyroscope according to the second address and the second attribute data.
12. The camera anti-shake method according to claim 11, wherein the generating at least one of first and second angular velocity data from the original angular velocity data comprises at least one of:
generating first angular velocity data corresponding to first attribute data according to the original angular velocity data, reading the first address in the register, and outputting the first angular velocity data through a first output end corresponding to the read first address;
and generating second angular velocity data corresponding to second attribute data according to the original angular velocity data, reading the second address in the register, and outputting the second angular velocity data through a second output end corresponding to the read second address.
13. The camera anti-shake method according to claim 10, wherein the driving chips include at least two single-channel driving chips, and the at least two single-channel driving chips respectively correspond to different driving directions;
the calculating jitter compensation data according to the first angular velocity data includes:
calculating jitter compensation data corresponding to each driving direction according to the first angular velocity data, and respectively sending the jitter compensation data of each driving direction to a corresponding single-channel driving chip;
the receiving of the jitter compensation data sent by the main control chip through the driving chip and the output of the electrical signal according to the jitter compensation data include:
receiving jitter compensation data sent by the main control chip through the single-channel driving chip, and outputting an electric signal corresponding to the driving direction according to the jitter compensation data;
the receiving of the electrical signal output by the driving chip through the motor and the driving of the lens according to the electrical signal comprise:
and receiving the electric signal output by the single-channel driving chip through a motor, and driving the lens to move in the corresponding driving direction according to the electric signal.
14. The camera anti-shake method according to claim 10, wherein outputting an electrical signal according to the shake compensation data comprises:
and acquiring the position data of the lens through a Hall sensor arranged in the driving chip, and outputting an electric signal according to the jitter compensation data and the position data.
15. The camera anti-shake method according to claim 10, wherein the driver chips include a first driver chip and a second driver chip, the motors include a first motor and a second motor, and the lenses include a first lens and a second lens;
the calculating jitter compensation data according to the first angular velocity data includes:
calculating to obtain first jitter compensation data and second jitter compensation data according to the first angular velocity data;
the receiving of the jitter compensation data sent by the main control chip through the driving chip and the output of the electrical signal according to the jitter compensation data include:
receiving first jitter compensation data sent by the main control chip through the first driving chip, outputting a first electric signal according to the first jitter compensation data, receiving second jitter compensation data sent by the main control chip through the second driving chip, and outputting a second electric signal according to the second jitter compensation data;
the receiving of the electrical signal output by the driving chip through the motor and the driving of the lens according to the electrical signal comprise:
the first motor is used for receiving the first electric signal output by the first driving chip, driving the first lens to move according to the first electric signal, and the second motor is used for receiving the second electric signal output by the second driving chip and driving the second lens to move according to the second electric signal.
16. The camera anti-shake method according to claim 15, wherein the first driver chip includes at least two first single-channel driver chips, the at least two first single-channel driver chips respectively corresponding to different first driving directions of the first lens, and the second driver chip includes at least two second single-channel driver chips, the at least two second single-channel driver chips respectively corresponding to different first driving directions of the second lens;
the calculating to obtain the first jitter compensation data and the second jitter compensation data according to the first angular velocity data includes:
calculating first jitter compensation data corresponding to each first driving direction according to the first angular velocity data, respectively sending the first jitter compensation data of each first driving direction to a corresponding first single-channel driving chip, calculating second jitter compensation data corresponding to each second driving direction according to the first angular velocity data, and respectively sending the second jitter compensation data of each second driving direction to a corresponding second single-channel driving chip;
the receiving, by the first driver chip, first jitter compensation data sent by the main control chip, outputting a first electrical signal according to the first jitter compensation data, receiving, by the second driver chip, second jitter compensation data sent by the main control chip, and outputting a second electrical signal according to the second jitter compensation data includes:
receiving first jitter compensation data sent by the main control chip through the first single-channel driving chip, outputting first electric signals corresponding to all the first driving directions according to the first jitter compensation data, receiving second jitter compensation data sent by the main control chip through the second single-channel driving chip, and outputting second electric signals corresponding to all the second driving directions according to the second jitter compensation data;
the first motor is used for receiving the first electric signal output by the first driving chip, driving the first lens to move according to the first electric signal, receiving the second electric signal output by the second driving chip through the second motor, and driving the second lens to move according to the second electric signal, and the method includes:
the first motor receives the first electric signal output by the first single-channel driving chip, the first lens is driven to move in the corresponding first driving direction according to the first electric signal, the second motor receives the second electric signal output by the second single-channel driving chip, and the second lens is driven to move in the corresponding second driving direction according to the second electric signal.
17. An electronic device comprising a memory and a processor, the memory having stored therein a computer program that, when executed by the processor, causes the processor to perform the steps of the method according to any of claims 10 to 16.
18. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 10 to 16.
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