CN115278058A

CN115278058A - Image acquisition method and device, electronic equipment and storage medium

Info

Publication number: CN115278058A
Application number: CN202210731344.4A
Authority: CN
Inventors: 王丹; 裴珺
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-11-01

Abstract

The application discloses an image acquisition method, an image acquisition device, electronic equipment and a storage medium, and belongs to the technical field of camera shooting. The method comprises the following steps: determining a first light source based on a first image acquired by an image sensor; determining a target adjustment parameter of a target photosensitive unit in the image sensor according to the first light source; adjusting parameters corresponding to the target photosensitive unit through the target adjustment parameters; and acquiring a target image through the adjusted image sensor.

Description

Image acquisition method and device, electronic equipment and storage medium

Technical Field

The application belongs to the technical field of camera shooting, and particularly relates to an image acquisition method and device, electronic equipment and a storage medium.

Background

At present, when a user shoots through an electronic device, reflection (for example, reflection between a lens and a cover glass) occurs between a lens and a lens module in the electronic device, so that a phenomenon such as flare (flare) or ghost exists in an image shot by the electronic device.

Generally, in the related art, flare or ghost of a captured image can be reduced by lens optimization (e.g., improving the film coating characteristics of a lens or improving the film coating characteristics of a filter).

However, in the above methods, although the phenomena such as flare and ghost may be slightly improved by improving the film-coating characteristics of the lens or the film-coating characteristics of the filter, the phenomena such as flare and ghost may not be completely eliminated.

Therefore, the image shot by the electronic equipment is low in definition.

Disclosure of Invention

The embodiment of the application aims to provide an image acquisition method, an image acquisition device, an electronic device and a storage medium, and can solve the problem that the definition of an image shot by the electronic device is low.

In a first aspect, an embodiment of the present application provides an image capturing method applied to an image capturing apparatus, where the image capturing apparatus includes an image sensor, the image sensor includes a photosensitive layer, the photosensitive layer includes at least two photosensitive units, and the image capturing method includes: determining a first light source based on a first image acquired by an image sensor; determining a target adjustment parameter of a target photosensitive unit in the image sensor according to the first light source; adjusting parameters corresponding to the target photosensitive unit through the target adjustment parameters; and acquiring a target image through the adjusted image sensor.

In a second aspect, an embodiment of the present application provides an image capturing apparatus, including an image sensor, where the image sensor includes a photosensitive layer, and the photosensitive layer includes at least two photosensitive units; the image acquisition device includes: the device comprises a determining module, an adjusting module and an acquisition module. The determining module is used for determining a first light source based on a first image acquired by the image sensor; and determining a target adjustment parameter of a target photosensitive unit in the image sensor according to the first light source. The adjusting module is used for adjusting the parameters corresponding to the target photosensitive unit through the target adjusting parameters determined by the determining module; and the acquisition module is used for acquiring the target image through the image sensor adjusted by the adjustment module.

In a third aspect, embodiments of the present application provide an electronic device, which includes a processor and a memory, where the memory stores a program or instructions executable on the processor, and the program or instructions, when executed by the processor, implement the steps of the method according to the first aspect.

In a fourth aspect, embodiments of the present application provide a readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the method according to the first aspect.

In a fifth aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the method according to the first aspect.

In a sixth aspect, embodiments of the present application provide a computer program product, stored on a storage medium, for execution by at least one processor to implement the method according to the first aspect.

In this embodiment of the application, the image capturing device may determine a first light source in a first image captured by the image sensor, then determine a target adjustment parameter associated with the target photosensitive unit according to the first light source, adjust the corresponding target photosensitive unit according to the target adjustment parameter, and capture the target image through the adjusted image sensor. In this scheme, because image acquisition device can confirm first light source in the first image earlier, image acquisition device can confirm the region that first light source is located in the first image promptly, then the sensitization parameter of the target sensitization unit that corresponds with this region of readjustment to after the sensitization parameter of this target sensitization unit of adjustment, at the in-process of image acquisition device collection image, can expose the compensation to image sensor, eliminate phenomenons such as dazzling (flare) or ghost, promoted the image definition that image acquisition device shot.

Drawings

Fig. 1 is a flowchart of an image acquisition method provided in an embodiment of the present application;

FIG. 2 is a diagram illustrating an example of a physical ordering of pixels sensed in an image sensor according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of an example of a light transmission control layer according to an embodiment of the present disclosure;

fig. 4 is a second schematic view illustrating an example of a light transmission control layer according to an embodiment of the present disclosure;

fig. 5 is a third schematic view illustrating an example of a light transmission control layer according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of an example of a signal control circuit according to an embodiment of the present disclosure;

fig. 7 is a second schematic diagram of an example of a signal control circuit according to an embodiment of the present disclosure;

FIG. 8 is a third exemplary schematic diagram of a signal control circuit according to an embodiment of the present disclosure;

FIG. 9 is a fourth schematic diagram of an example of a signal control circuit according to an embodiment of the present disclosure;

fig. 10 is a schematic structural diagram of an image capturing device according to an embodiment of the present application;

fig. 11 is a schematic hardware structure diagram of an electronic device according to an embodiment of the present disclosure;

fig. 12 is a second schematic diagram of a hardware structure of an electronic device according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application are capable of operation in sequences other than those illustrated or described herein, and that the terms "first," "second," etc. are generally used in a generic sense and do not limit the number of terms, e.g., a first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The image capturing method provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

With the development of communication technology, functions of application programs in electronic devices are increasing, for example, users can meet their own needs through a shooting function in the electronic devices, however, when the electronic devices shoot, especially at night scenes, because light is incident on a lens in the electronic devices from inside or outside of a field of view, the light is reflected inside the lens and a module, for example, reflection between a lens and a cover glass, reflection between the lens and a lens, reflection between an infrared filter and the lens, and reflection between a sensor and the infrared filter, so that the electronic devices may generate ghost or flare phenomena when shooting images.

In the related art, a user may improve the phenomena of ghost, flare, and the like occurring when the electronic device shoots through lens optimization (for example, improving the film coating property of the lens, improving the film coating property of the IR, reducing the reflectivity of the image sensor, and reducing the reflectivity of other components in the module (such as the capacitance in the module)).

In the embodiment of the application, the image acquisition device can determine the first light source in the first image acquired by the image sensor, then determine the target adjustment parameter of the target photosensitive unit according to the first light source, adjust the corresponding target photosensitive unit according to the target adjustment parameter, and acquire the target image through the adjusted image sensor. In this scheme, because image acquisition device can confirm first light source in the first image earlier, image acquisition device can confirm the region that first light source is located in the first image promptly, then the sensitization parameter of the target sensitization unit that corresponds with this region of readjustment to after the sensitization parameter of this target sensitization unit of adjustment, at the in-process of image acquisition device collection image, can expose the compensation to image sensor, eliminate phenomenons such as dazzling (flare) or ghost, promoted the image definition that image acquisition device shot.

An embodiment of the present application provides an image acquisition method, and fig. 1 shows a flowchart of an image acquisition method provided in an embodiment of the present application. As shown in fig. 1, an image acquisition method provided by an embodiment of the present application may include steps 201 to 204 described below.

Step 201, the image acquisition device determines a first light source based on a first image acquired by the image sensor.

In this embodiment of the application, after the image capturing device captures the first image through the image sensor, the image capturing device may perform light source detection on the first image to determine an image area where the first light source is located (hereinafter, referred to as a first light source area).

Specifically, after the image capturing device captures the first image, the image capturing device may acquire brightness values of all pixels in the first image, so as to determine an area corresponding to a pixel brightness value greater than a preset threshold as the first light source area.

For example, assuming that the brightness values of all pixels in the first image acquired by the image acquisition device are 80, 80, 68, 64, the electronic device may then compare the brightness value corresponding to each pixel with a preset threshold (e.g. 64), so as to determine the area corresponding to the pixel greater than the preset threshold (i.e. the image area corresponding to 80, 80, 68) as the first light source area.

Optionally, in this embodiment of the application, before the image capturing device captures the first image, the electronic device may capture a second image, where the second image is captured by the user in a completely dark environment, so that the electronic device may compare the second image with an area in the first image where the brightness value is different greatly, and determine the area in the first image where the brightness value is different greatly as the first light source area according to the second image.

For example, assuming that the luminance values of the pixels of the second image acquired by the image acquisition device are 64 in a completely black environment, the image acquisition device may compare the luminance value of each pixel in the second image with the luminance value of each pixel in the first image, so that a region corresponding to at least one pixel value in the first image that is greater than the luminance value of the pixel in the second image is determined as the first light source region according to the second image.

The first image and the second image are images of the same size and the same field of view captured under the same environment.

Optionally, in this embodiment of the application, the image capturing device may divide brightness of all pixels in the first image according to a preset matrix to obtain at least one pixel brightness matrix (hereinafter, referred to as a first pixel brightness matrix), and then obtain an average value of the at least one first pixel brightness matrix (hereinafter, referred to as a first brightness average value); then, the image capturing device may also divide the brightness of all pixels in the second image according to a preset matrix to obtain at least one pixel brightness matrix (hereinafter, referred to as a second pixel brightness matrix), then obtain an average value of the at least one second pixel brightness matrix (hereinafter, referred to as a second brightness average value), and compare each brightness average value of the at least one first brightness average value with each brightness average value of the at least one second brightness average value, thereby determining the first light source region in the first image.

It can be understood that the image acquisition device can determine the first light source area by means of block processing, thereby improving the efficiency of the image acquisition device in processing images.

Optionally, in an embodiment of the present application, the image sensor may be an all-in-one (e.g., a four-in-one, a nine-in-one, or a sixteen-in-one) sensor.

For example, in an all-in-one image sensor, taking 4-in-1 as an example, as shown in fig. 2, the physical ordering of the photosensitive pixels in the image sensor arranges 4R photosensitive pixels together, 4 Gb photosensitive pixels together, and 4B photosensitive pixels together.

Optionally, in this embodiment of the present application, the second image may be a data image acquired by an image sensor and converted from an optical signal to a digital signal.

Alternatively, in the embodiment of the present application, the first Light source may be a natural Light source (e.g., light irradiated by the sun or Light irradiated by the moon), an artificial Light source (e.g., light irradiated by a tungsten lamp, light irradiated by a fluorescent lamp, light irradiated by a Light Emitting Diode (LED)). Specifically, the method may be determined according to actual use requirements, and the embodiment of the present application is not limited.

Optionally, in this embodiment of the application, before the image capturing device captures the first image through the image sensor, the user may perform a first input on the electronic device to trigger the image capturing device to capture the first image through the image sensor.

Optionally, in this embodiment of the application, the first input may be any one of: click input, long-press input, sliding input and preset track input; or a physical key combination (e.g., power key and volume key). The method can be determined according to actual use requirements, and the embodiment of the application is not limited.

Step 202, the image acquisition device determines a target adjustment parameter of a target photosensitive unit in the image sensor according to the first light source.

In the embodiment of the application, the image acquisition device determines the target adjustment parameters of the target photosensitive unit in the image sensor according to the position information of the first light source area corresponding to the first light source.

Optionally, in this embodiment of the application, the number of the first light source regions may be one or more.

Specifically, in the case that the number of the first light source areas is multiple, each piece of the position information corresponds to one target adjustment parameter, so that the image acquisition device can determine the target adjustment parameter corresponding to the first light source area according to the position information after acquiring the position information of the first light source area.

Optionally, in this embodiment of the present application, the position information may be a pixel matrix position or a pixel point position determined by the image acquisition device according to light source detection.

Optionally, in an embodiment of the present application, the target adjustment parameter includes at least one of: the adjustment ratio of the amount of light entering (light transmittance parameter) and the adjustment ratio of the exposure gain (exposure gain parameter).

Alternatively, in this embodiment of the application, the step 202 may be specifically implemented by the step 202a described below.

Step 202a, under the condition that the first light source is matched with the second light source corresponding to the first target correction image, the image acquisition device takes a target correction matrix corresponding to the first target correction image as a target adjustment parameter.

In an embodiment of the present application, the first target corrected image is an image of at least one second corrected image.

In the embodiment of the application, when the position information of the first light source is matched with the position information of the second light source corresponding to the first target correction image, the image acquisition device takes the target correction matrix corresponding to the first target correction image as the target adjustment parameter.

Specifically, the image acquisition device may compare the position information of the first light source with the position information of the second light source, and when the matching degree between the position information of the first light source and the position information of the second light source is greater than a preset threshold, the image acquisition device uses a target correction matrix corresponding to the first target correction image as a target adjustment parameter.

It should be noted that the target correction matrix corresponding to the first target correction image is calibrated in advance by the image capturing device.

Optionally, in this embodiment of the application, the image capturing device may calibrate an exposure parameter of the area corresponding to the second light source in advance, so that the image capturing device may adjust a parameter corresponding to the target photosensitive unit according to the exposure parameter.

Specifically, the image acquisition device may obtain at least one second corrected image by shooting, where each of the at least one second corrected image includes a second light source, and the positions of the second light sources are different, and taking an example that one second corrected image includes one second light source, the image acquisition device may obtain a pixel brightness value of the second corrected image, determine an area corresponding to a pixel value of which the pixel brightness value in the second corrected image is greater than a preset threshold (for example, 64) as an area where the second light source is located, and then perform proportional operation on the pixel value in the area and the preset threshold to obtain a target adjustment parameter corresponding to the area.

For example, assuming that the pixel value of the region where the second light source is located in the second corrected image is 75/64/68, and the preset threshold is 64, the image acquisition device may perform division operation on the preset threshold and the pixel value of the region where the second light source is located respectively (i.e. 64/75, 64/64, 64/68) to obtain a quotient (i.e. 0.835, 1, 0.941) of the pixel value of the region where the second light source is located and the preset threshold, where the quotient is the target adjustment parameter.

In this application embodiment, after the image acquisition device determines the first light source area, the image acquisition device may determine the target adjustment parameter of the first light source according to the corresponding relationship between the first target correction image and the target correction matrix, it may be understood that the image acquisition device may perform parameter adjustment according to the corresponding relationship between the first target correction image and the target adjustment parameter stored in advance, and under the condition that the light source in the first image is matched with the light source of the first target correction image, the image acquisition device may perform parameter adjustment by using the correction matrix corresponding to the first target correction image, so as to improve the efficiency of removing the glare phenomenon by the image acquisition device.

And 203, adjusting the corresponding parameters of the target photosensitive unit by the image acquisition device through the target adjustment parameters.

In an embodiment of the present application, the target photosensitive unit is: among the light sensing units of the image sensor, a light sensing unit corresponding to the first light source region.

In the embodiment of the application, after the image acquisition device acquires the target adjustment parameters, the image acquisition device can adjust the parameters of the target photosensitive unit in the image sensor, and acquires the image again through the adjusted image sensor to obtain the target image.

Optionally, in this embodiment of the application, as shown in fig. 3, the image capturing device 10 further includes a microlens layer 11 and a light transmission control layer 12, the light transmission control layer 12 is located between the microlens layer 11 and the photosensitive layer 13, and the target adjusting parameter includes: a light transmittance parameter; the step 203 can be specifically realized by the following steps 203a and 203 b.

And 203a, obtaining the target light transmittance by the image acquisition device based on the light transmittance parameter.

In this application embodiment, after the image acquisition device determines the first light source area, the image acquisition device can perform proportional operation on a pixel value corresponding to the first light source area and a preset threshold value to obtain a light transmittance parameter, so that the image acquisition device can obtain a target light transmittance through the light transmittance parameter.

Optionally, in the embodiment of the present application, the light transmittance parameter may be one or more.

For example, assuming that the pixel value of the area where the first light source area is located is 75/64/68, and the preset threshold is 64, the image capturing device may divide the preset threshold by the pixel value of the first light source area (i.e., 64/75, 64/64, and 64/68) to obtain a quotient (i.e., 0.835, 1, and 0.941) between the pixel value of the first light source area and the preset threshold, where the quotient is a light transmittance parameter, and taking 0.835 as an example, if the original light transmittance of the image sensor is 80%, the target light transmittance is 64%.

Step 203b, the image acquisition device adjusts the light transmittance of the light transmittance control layer corresponding to the target photosensitive unit to the target light transmittance through the light transmittance control layer.

In this application embodiment, image acquisition device can be through the printing opacity control layer among the image sensor to adjust the light transmissivity of target sensitization unit to target luminousness, and through the target sensitization unit after the adjustment, gather the target image.

Specifically, the electronic device may apply a voltage to both ends of a light-transmission control layer in the image sensor, so that the light-transmission control layer adjusts the light transmittance of the target photosensitive unit to a target light transmittance.

Optionally, in this embodiment of the application, a material of the light transmission control layer is an electrochromic material.

Alternatively, in the embodiment of the present application, the electrochromic material may be a redox reaction material or a dispersed liquid crystal material.

For example, taking the light transmission control layer as a dispersed liquid crystal material as an example, as shown in fig. 4 (a), when a voltage is not applied across the image sensor 10, the liquid droplets in the liquid crystal interlayer are in a disordered state, and when light enters, the refractive index of the liquid droplets is greatly different from that of the matrix, so that the light is scattered when passing through the liquid droplets, and the dispersed liquid crystal material 14 is arranged in a disordered manner (i.e., the light cannot enter into a plurality of photosensitive pixels); as shown in fig. 4 (B), when a voltage is applied across the image sensor 10, the dispersed liquid crystal material may adjust the small liquid droplets in the liquid crystal interlayer according to the magnitude of the voltage, so that the refractive indexes of the substrates are relatively close, that is, when light enters, the dispersed liquid crystal material 14 is aligned, so that the light can enter the plurality of photosensitive units through the dispersed liquid crystal material 13.

Further illustratively, the voltage may be specifically 0V to 2.8V.

It should be noted that, for clarity of understanding of the image sensor provided in the embodiments of the present application, fig. 3 is a cross-sectional view of the image sensor.

Optionally, in this embodiment of the application, the light transmission control layer may include at least one light transmission unit, the photosensitive layer includes at least two photosensitive units, one light transmission unit is correspondingly disposed in each row of the at least two photosensitive units, or one light transmission unit is correspondingly disposed in each column of the at least two photosensitive units.

Specifically, in the embodiment of the present application, each of the at least one light-transmitting unit may cover one row of the photosensitive units.

Illustratively, as shown in fig. 5 (a), the image sensor includes 3 rows and 2 columns of filter units 12, and at least one light-transmitting unit 15 may cover the photosensitive units 12 completely in a row covering manner, so that each row of photosensitive units may correspond to one light-transmitting unit, thereby changing the amount of light entering the corresponding at least one row of photosensitive units.

Specifically, in the embodiment of the present application, each of the at least one light-transmitting unit may cover one row of the photosensitive units in a column.

Illustratively, as shown in fig. 5 (B), the image sensor includes 3 rows and 2 columns of filter units 12, and at least one light-transmitting unit 15 may completely cover the photosensitive units 16 in a column-covering manner, so that each column of photosensitive units may correspond to one light-transmitting unit, thereby changing the light incoming amount of the corresponding at least one column of photosensitive units.

Illustratively, as shown in fig. 5 (C), the image sensor includes 3 rows and 2 columns of photosensitive cells 16, and at least one light-transmitting cell 15 may cover the photosensitive cells 16 completely in a block covering manner, so that each photosensitive cell may correspond to one light-transmitting cell, thereby changing the amount of light entering the corresponding at least one photosensitive cell.

Optionally, in this embodiment of the application, the number of the light transmission control layers is at least two, and at least two light transmission control layers are stacked.

Illustratively, as shown in fig. 5 (D), the image sensor includes 3 rows and 2 columns of photosensitive cells 16, and at least one light-transmitting cell 15 covers the photosensitive cells 16 completely in a column covering manner and a row covering manner, so that each column of photosensitive cells can correspond to two light-transmitting cells, thereby changing the light incoming quantity of the corresponding at least one photosensitive cell.

In the embodiment of the application, the light transmittance of the target photosensitive unit can be adjusted to the target light transmittance by the image acquisition device through the light transmittance control layer in the image sensor, so that the flare phenomenon existing in the shooting process of a user is eliminated, and the flexibility of processing images by the electronic equipment is improved while the image definition shot by the image acquisition device is improved.

Optionally, in an embodiment of the present application, the image sensor includes: each photosensitive unit is correspondingly provided with a signal control circuit, and the target adjustment parameters comprise: an exposure gain parameter; the step 203 can be specifically realized by the steps 203c and 203d described below.

And 203c, the image acquisition device obtains the target exposure gain based on the exposure gain parameter.

In the embodiment of the application, after the image acquisition device determines the first light source area, the image acquisition device can perform proportional operation on the exposure gain value corresponding to the first light source area and the preset threshold value to obtain the exposure gain parameter, so that the image acquisition device can obtain the target exposure gain through the exposure gain parameter.

Optionally, in this embodiment of the present application, the exposure gain parameter may be one or more.

Exemplarily, assuming that the pixel value of the area where the first light source area is located is 75/64/68 and the preset threshold is 64, the image capturing device may perform division operation on the preset threshold and the pixel value of the first light source area respectively (i.e., 64/75, 64/64, 64/68) to obtain a quotient (i.e., 0.835, 1, 0.941) of the pixel value of the first light source area and the preset threshold, where the quotient is an exposure gain parameter, taking 0.835 as an example, and if the original exposure gain of the photosensitive unit in the image sensor is 2, the target exposure gain is 1.67.

And step 203d, the image acquisition device adjusts the gain value corresponding to the target photosensitive unit to the target exposure gain through the signal control circuit.

In the embodiment of the application, the image acquisition device can adjust the gain value corresponding to the target photosensitive unit into the target exposure gain through the signal control circuit in the image sensor, and acquire the target image through the adjusted target photosensitive unit.

In the embodiment of the application, the image acquisition device can adjust the gain value corresponding to the target photosensitive unit into the target exposure gain through the signal control circuit in the image sensor, so that the flare phenomenon existing in the shooting process of a user can be eliminated, the image definition shot by the image acquisition device is improved, and the flexibility of processing images by the image acquisition device is improved.

Optionally, in this embodiment of the application, as shown in fig. 6, the signal control circuit includes: the first control module 19 is connected with a first end of the photosensitive unit PD1, the first control module 19 is configured to adjust a signal voltage corresponding to the photosensitive unit, and a second end of the photosensitive unit PD1 is grounded; a second control module 20, the second control module 20 being connected to the first control module 19, the second control module 20 being further connected to an output terminal (indicated by Vout in fig. 6) of the signal control circuit, the second control module 20 being configured to adjust the conversion gain; the conversion gain is used for indicating the gain for converting the signal voltage corresponding to the first control module into the output voltage; the step 203d can be specifically realized by the step 203b1 described below.

Step 203d1, the image capturing device adjusts the gain value corresponding to the target photosensitive unit to the target exposure gain based on the target control module.

In an embodiment of the present application, the target control module includes at least one of: the device comprises a first control module and a second control module.

In the embodiment of the application, the image acquisition device can respectively obtain 1 to 7 times of the capacitor combination of the FD1 by controlling the switch of the target control module, so that the gain value corresponding to the target photosensitive unit is adjusted to be the target exposure gain.

Optionally, in this embodiment of the application, the photosensitive unit PD1 may include one photosensitive unit or multiple photosensitive units, and the photosensitive unit PD1 may specifically be a photodiode.

It is understood that, when the photosensitive unit PD1 performs the exposure, the photosensitive unit PD1 may generate electrons and holes according to the optical signal, wherein the electrons may move to the N region of the photosensitive unit PD1 and the holes may move to the P region of the photosensitive unit PD1, so that the photosensitive unit PD1 may generate and output the charge signal.

Alternatively, in the embodiment of the present application, with reference to fig. 6, the anode electrode of the photosensitive unit PD1 may be grounded, and the cathode electrode (i.e., the second end) of the photosensitive unit PD1 may be connected to the first control module 19 through the switching tube TX1, so that the charge signal generated by the photosensitive unit PD1 may enter the first control module 19; the second end of the photosensitive unit PD1 may be a cathode electrode of the photosensitive unit PD 1.

In the embodiment of the present application, the first control module 19 is configured to perform an amplification or reduction process on the charge signal output by the photosensitive unit PD 1.

In the embodiment of the application, the image acquisition device can adjust the gain value corresponding to the target photosensitive unit into the target exposure gain value through the target control module in the signal control circuit in the image sensor, eliminate the flare phenomenon of a user in the shooting process, and improve the flexibility of image processing of the image acquisition device while improving the image definition shot by the image acquisition device.

Optionally, in this embodiment of the present application, the first control module 19 includes: the photosensitive unit comprises N first switching pieces and N first capacitors, wherein each first switching piece is connected with the photosensitive unit through one first capacitor, and N is a positive integer; the second control module 20 includes: m second switching elements and M signal amplifiers, each of the M signal amplifiers being connected to the first control module 19 through one second switching element, M being a positive integer; the step 203b can be specifically realized by the step 203b2 described below.

And 203b2, controlling the P target switching elements to be in a passage state by the image acquisition device so as to adjust the output voltage signal of the target control module, wherein P is less than or equal to M + N.

In this embodiment, the P target switch devices are ones of N first switch devices and M second switch devices.

In the embodiment of the application, the image acquisition device can be in the access state by controlling the P target switch pieces, so that the output voltage signal of the target control module is adjusted, and then the capacitance combination that m is multiple to n is obtained respectively, so that the gain value corresponding to the target photosensitive unit is adjusted to be the target exposure gain, wherein m and n are positive numbers, and n is greater than m.

In the embodiment of the application, the image acquisition device can be through the P target switch pieces that switch on in the signal control circuit to the output voltage signal of adjustment target control module, and then target control module can be with the gain value adjustment that target sensitization unit corresponds to target exposure gain value, eliminate the flare phenomenon that the user exists at the shooting in-process, promoted the flexibility that the image acquisition device handled the image when having promoted the image definition that the image acquisition device was shot.

Optionally, in this embodiment of the application, with reference to fig. 6, as shown in fig. 7, the first control module 19 includes: a first capacitor FD1, a first end of the first capacitor FD1 is grounded, and a second end of the first capacitor FD1 is connected to the first end of the photosensitive element PD1 through a first switching tube TG 1; a second capacitor FD2, a first end of the second capacitor FD2 is grounded, and a second end of the second capacitor FD2 is connected to the first end of the photosensitive element PD1 through a second switching tube TG 2; a third capacitor FD1, a first end of the third capacitor FD1 is grounded, and a second end of the third capacitor FD1 is connected to the first end of the photosensitive element PD1 through a third switching tube TG 3; the step 203d1 can be specifically realized by the step 401 described below.

Step 401, under the condition that the target control module includes a first control module, the image acquisition device controls the first target switch tube to be in a connected state, and adjusts a gain value corresponding to the target photosensitive unit to be a target exposure gain.

In an embodiment of the present application, the first target switch tube includes at least one of: the first switch tube, the second switch tube and the third switch tube.

In the embodiment of the present application, the first capacitor, the second capacitor, and the third capacitor may be regarded as charge storage capacitors.

Optionally, in this embodiment of the application, the first switching tube TG1, the second switching tube TG2, and the third switching tube TG3 may be: mos tubes.

Optionally, in this embodiment of the present application, the first capacitor and the second capacitor may be any one of the following: electrolytic capacitor, mica capacitor, and ceramic capacitor.

It should be noted that, regarding the number of capacitors, a person skilled in the art may select the capacitors according to the size requirement of the signal control circuit, and the embodiment of the present application does not limit this.

Optionally, in this embodiment of the application, the types of the first capacitor and the second capacitor may be the same or different; the capacitance values of the first capacitor and the second capacitor can be the same or different.

For example, assuming that the plurality of capacitors includes a capacitor 1, a capacitor 2, and a capacitor 3, capacitance values of the plurality of capacitors may be the same, for example, capacitance value of the capacitor 1 may be a, capacitance value of the capacitor 2 may be a, and capacitance value of the capacitor 3 may be a, and a ratio of capacitance values of the capacitor 1, the capacitor 2, and the capacitor 3 may be 1.

Further exemplarily, assuming that the plurality of capacitors include a capacitor 1, a capacitor 2, and a capacitor 3, capacitance values of the plurality of capacitors may be different, for example, capacitance value of the capacitor 1 may be a, capacitance value of the capacitor 2 may be 2a, and capacitance value of the capacitor 3 may be 4a, and a ratio of capacitance values of the capacitor 1, the capacitor 2, and the capacitor 3 may be 1.

Optionally, in this embodiment of the present application, a plurality of capacitors may be connected in parallel.

Optionally, in this embodiment of the application, the second terminal of each capacitor in the plurality of capacitors may be grounded.

Optionally, in this embodiment of the application, the first end of each of the plurality of capacitors may be connected to the second end of the photo sensing unit PD1 through a switch, so that the first control module 19 may adjust the number of capacitors connected to the photo sensing unit PD1 by adjusting whether the switch is in an on state or an off state.

Further optionally, in this embodiment of the application, a ratio of capacitance values of the first capacitor FD1, the second capacitor FD2, and the third capacitor FD3 may specifically be: 1:2:4.

It will be appreciated that the amplification of the first control module 19 may be: the second amplification factor is 1 to 7 times, and the second amplification factor may be specifically the amplification factor of the first control module 19 when only the first capacitor FD1 is connected to the light sensing unit PD 1.

For example, in the case that the first switching tube TG1 is in the on state, and the second switching tube TG2 and the third switching tube TG3 are in the off state, the amplification factor of the first control module 19 may be 1 times of the second amplification factor.

When the first switch tube TG1, the second switch tube TG2 and the third switch tube TG3 are all in a conducting state, the amplification factor of the first control module 19 may be 7 times that of the second amplification factor.

Therefore, the signal output by the photosensitive unit can be amplified through at least one of the first capacitor, the second capacitor and the third capacitor to obtain a shot image with higher definition and dynamic range, and more capacitors are not required to be arranged, so that the size of the signal control circuit can be reduced, and the cost can be saved.

Optionally, in this embodiment of the application, the first control module 19 may further perform reduction processing on the signal output by the photosensitive unit through capacitance values of the FD1, the FD2, and the FD3, so that the charge signal output by the photosensitive unit PD1 may enter a smaller capacitance, and thus the signal sensing capability (sensitivity) of the photosensitive unit PD1 may be improved, so as to improve the definition of the captured image.

Optionally, in this embodiment of the present application, with reference to fig. 7, the second end of the first capacitor FD1 is further connected to the second control module 20 through the first switch tube TG 1; the second end of the second capacitor FD2 is further connected to the second control module 20 through a second switching tube TG 2; the second end of the third capacitor FD3 is further connected to the second control module 20 through a third switching transistor TG 3.

Further alternatively, in the embodiment of the present application, after the photosensitive unit PD1 outputs all the charge signals, the switching tube TX1 may be controlled to be in the off state, so that the first capacitor FD1, and/or the second capacitor FD2, and/or the third capacitor FD3 may output the voltage signals to the second control module 20.

Therefore, the second end of the first capacitor, the second end of the second capacitor and the second end of the third capacitor can be directly connected with the second control module without arranging other circuit structures, so that the size of the signal control circuit can be reduced, and the cost can be saved.

In this embodiment, when the photo sensing unit PD1 performs exposure, if the photo sensing unit PD1 reaches full well capacity (saturation), the charge signal output by the photo sensing unit PD1 may enter the first control module 19, so that the first control module 19 may adjust the number of the switching tubes in a conducting state in the plurality of switching tubes connected to the first ends of the plurality of capacitors, so as to adjust the number of the capacitors connected to the photo sensing unit PD1, and further adjust the magnification or reduction factor of the first control module 19.

The first control module 19 may increase the amplification factor of the first control module 19 according to the capacitance value of the capacitor connected to the photosensing unit PD1, so that the charge signal output by the photosensing unit PD1 may enter the capacitor with a large capacitance capacity, and the full-well capacity of the photosensing unit PD1 may be increased, and then the strong light signal detection capability of the photosensing unit PD1 may be increased, so that the dynamic range of the captured image may be increased.

The first control module 19 can reduce the amplification factor of the first control module 19 according to the capacitance value of the capacitor connected to the photosensitive unit PD1, so that the charge signal output by the photosensitive unit PD1 can be in the capacitor with smaller capacitance, and the signal sensing capability (sensitivity) of the photosensitive unit PD1 can be improved, thereby improving the definition of the photographed image.

It can be understood that, since the capacitance value of the capacitor is inversely proportional to the voltage under the condition that the charge signal is fixed, after the charge signal output by the photosensitive unit PD1 enters the smaller capacitor of the first control module 19, the smaller capacitor can convert the charge signal into a larger voltage signal, and therefore, the signal sensing capability of the photosensitive unit PD1 can be improved.

In the embodiment of the present application, after the amplification factor of the first control module 19 is adjusted, the capacitor connected to the photo sensor unit PD1 may convert the charge signal output by the photo sensor unit PD1 into a voltage signal, and output the voltage signal to the second control module 20.

In the embodiment of the present application, the second control module 20 is configured to amplify or reduce the voltage signal output by the first control module 19.

Optionally, in this embodiment of the application, with reference to fig. 6 and 7, as shown in fig. 8, the second control module 20 includes: a first target source follower SF1, a first end of the first target source follower SF1 being connected to the first control module 19 through a fourth switching tube TG 4; a second target source follower SF2, a first end of the second target source follower SF2 being connected to the first control module 19 through a fifth switching tube TG5, the first end of the second target source follower SF2 being further connected to a second end of the first target source follower SF 1; a third target source follower SF3, a first end of the third target source follower SF3 is connected to the first control module 19 through a sixth switching tube TG6, the first end of the third target source follower SF3 is further connected to a second end of the second target source follower SF2, and the second end of the third target source follower SF3 is connected to an output end of the signal control circuit; the step 203d1 can be specifically realized by the step 402 described below.

Step 402, under the condition that the target control module comprises a second control module, the image acquisition device controls a second target switch tube to be in a connected state, and the gain value corresponding to the target photosensitive unit is adjusted to be the target exposure gain.

In an embodiment of the present application, the second target switch tube includes at least one of: a fourth switching tube, a fifth switching tube and a sixth switching tube.

In the embodiment of the present application, the first target source follower, the second target source follower and the third target source follower may be regarded as voltage signal amplifiers.

It should be noted that, regarding the number of target source followers, a person skilled in the art may select the target source followers according to the amplification or reduction of the signal gain value, and this is not limited in the embodiment of the present application.

Optionally, in this embodiment of the application, for each target source follower in the plurality of target source followers, the gain (gain) of one target source follower is greater than 1, that is, the amplification factor of the one target source follower is greater than 1.

For each target source follower in the target source followers, a target mode may be adopted for one target source follower so that the amplification factor of the one target source follower is greater than 1.

The target mode includes at least one of: and a pixel stack (stacked pixel), wherein a target transistor is adopted, the quality of a gate oxide layer is improved, and the thickness of the gate oxide layer is reduced.

The above "pixel stack" can be understood as: the signal control circuit may be disposed below the photosensitive layer. The above-mentioned "employing the target transistor" can be understood as: taking a target transistor as a target source follower, wherein the target transistor can be any one of the following: a Fin-shaped Field Effect Transistor (FinFET) -like Transistor, a P-type metal-oxide-semiconductor Field Effect Transistor (mos) tube.

Optionally, in this embodiment of the application, the amplification factors of the first target source follower SF1, the second target source follower SF2 and the third target source follower SF3 may be the same or different.

Specifically, the amplification factors of the first target source follower SF1, the second target source follower SF2, and the third target source follower SF3 may be: 1.2 times.

It will be appreciated that the magnification of the second control module 20 may be: 1.2 to 1.73 times.

For example, when the sixth switching tube TG6 is in a conducting state, and the fourth switching tube TG4 and the fifth switching tube TG5 are in a blocking state, the amplification factor of the second control module 20 may be 1.2 times, that is, the voltage signal is amplified by the third target source follower SF 3. Under the condition that the fifth switching tube TG5 is in the on state and the fourth switching tube TG4 and the sixth switching tube TG6 are in the off state, the amplification factor of the second control module 20 may be 1.44 times, that is, the voltage signal is amplified by the second target source follower SF2 and the third target source follower SF 3. Under the condition that the fourth switching tube TG4 is in the on state and the fifth switching tube TG5 and the sixth switching tube TG6 are in the off state, the amplification factor of the second control module 20 may be 1.73 times, that is, the voltage signal is amplified by the first target source follower SF1, the second target source follower SF2 and the third target source follower SF 3.

Alternatively, in this embodiment, the first target source follower SF1, the second target source follower SF2, and the third target source follower SF3 may be connected in series.

Optionally, in this embodiment of the application, for each target source follower in the plurality of target source followers, the third terminal of one target source follower may be connected to one power supply to supply power to the one target source follower through the one power supply.

Optionally, in this embodiment of the application, the first end of each target source follower in the plurality of target source followers may be connected to the first control module 19 through a switch tube; a second end of a first target source follower in the target source followers is connected with a first end of a second target source follower, a second end of the second target source follower is connected with a first end of a third target source follower, a second end of the third target source follower is connected with a first end of a fourth target source follower, and so on; the second control module 20 can adjust the number of target source followers connected to the first control module 19 by adjusting the on state or the off state of the switching tube.

In this embodiment, when the voltage signal enters the second control module 20, the second control module 20 may adjust a certain switch tube of the plurality of switch tubes connected to the first ends of the plurality of target source followers to be in a conducting state, and adjust the number of the target source followers connected to the first control module 19 and further adjust the amplification factor of the second control module 20, where other switch tubes (i.e., the switch tubes of the plurality of switch tubes except the certain switch tube) are in a blocking state.

Under the condition that a first target switch tube of the plurality of switch tubes connected to the first ends of the plurality of target source followers is in a conducting state and other switch tubes (i.e. the switch tubes except the first target switch tube of the plurality of switch tubes) are in a cut-off state, the second control module 20 may adjust a second target switch tube of the plurality of switch tubes connected to the second ends of the plurality of target source followers to be in a conducting state, so as to adjust the amplification factor of the second control module 20, that is, the voltage signal may be amplified by more target source followers or amplified by fewer target source followers, thereby improving the dynamic range of the captured image; moreover, noise introduced by amplification of the target source follower is less than noise introduced by analog gain (analog gain) of the ISP, so that the definition of a shot image can be improved.

Optionally, in this embodiment of the application, the first target switch tube and the second target switch tube may be one or more than one.

In this embodiment, after the amplification factor of the second control module 20 is adjusted, the target source follower connected to the first control module 19 may amplify the voltage signal and output the amplified voltage signal to the output terminal of the signal control circuit.

Alternatively, in the embodiment of the present application, referring to fig. 8, the second control module 20 may be connected to the output terminal Vout of the signal control circuit through a switch tube SET, the switch tube SET is further connected to a first terminal of a direct current power supply DC, and a second terminal of the direct current power supply DC is grounded.

Therefore, the signal output by the first control module can be amplified through at least one target source follower of the first target source follower, the second target source follower and the third target source follower, so that a shot image with high definition and dynamic range can be obtained, and more target source followers do not need to be arranged, so that the size of the signal control circuit can be reduced, and the cost can be saved.

Optionally, in this embodiment of the application, the first control module 19 may further perform reduction processing on the signal output by the photosensitive unit according to the number of the target source followers, so that the signal perception capability (sensitivity) of the photosensitive unit PD1 may be improved, and thus, the definition of the captured image may be improved.

Optionally, in this embodiment of the application, after the light-entering amount of the collected image is reduced by the image collecting device through the light-transmitting control layer, if the light-entering amount is reduced too much, the gain corresponding to the target photosensitive unit may be amplified by the signal control circuit, so as to improve the quality of the shot image.

Of course, in order to further reduce the noise of the signal control circuit, a reset module may be further provided to reset the first control module 19 and the second control module 20 through the reset module, which will be illustrated below.

Optionally, in this embodiment of the application, with reference to fig. 8, as shown in fig. 9, the signal control circuit further includes: a target power supply VDD1; a reset switch RST1, a first end of the reset switch RST1 being connected to the target power supply VDD1, and a second end of the reset switch RST1 being connected to the first control block 19 and the second control block 20, respectively.

Further optionally, in this embodiment of the application, the reset switch RST1 may specifically be: mos tubes.

In the embodiment of the present application, the target power supply VDD1 is configured to send a reset signal to the first control module 19 and the second control module 20 through the reset switch RST1, so as to reset the first control module 19 and the second control module 20.

Further alternatively, in the embodiment of the present application, before the exposure of the photosensitive unit PD1, the target power supply VDD1 may send a reset signal to the first control module 19 and the second control module 20 through the reset switch RST 1; alternatively, after the photosensitive unit PD1 is exposed, the switching tube TX1 may be controlled to be in the off state, and then the target power supply VDD1 may send a reset signal to the first control module 19 and the second control module 20 through the reset switch RST 1.

Therefore, the first control module and the second control module can be reset through the target power supply, so that the noise of the first control module and the noise of the second control module can be reduced, the noise of the signal output by the signal control circuit can be reduced, and the definition of the shot image can be improved.

And step 204, the image acquisition device acquires a target image through the adjusted image sensor.

Optionally, in this embodiment of the application, after the image capturing device performs parameter adjustment on the target photosensitive unit in the image sensor, the image capturing device may receive a second input of the user to trigger the image capturing device to capture the target image.

Optionally, in this embodiment of the present application, the second input may be any one of the following: click input, long-press input, sliding input and preset track input; or a physical key combination (e.g., power key and volume key). The method can be determined according to actual use requirements, and the embodiment of the application is not limited.

Optionally, in this embodiment of the application, after the image capturing device performs parameter adjustment on the target photosensitive unit in the image sensor, the image capturing device may display a prompt message to a user to prompt the user to perform a second input.

Optionally, in this embodiment of the application, after the image capturing device obtains the target image, the image capturing device may store the target image in a target application (e.g., an album application); alternatively, the image capture device may output the target image into an image preview interface.

The embodiment of the application provides an image acquisition method, and an image acquisition device can determine a first light source in a first image acquired by an image sensor, then determine a target adjustment parameter of a target photosensitive unit according to the first light source, adjust the corresponding target photosensitive unit according to the target adjustment parameter, and further acquire a target image through the adjusted image sensor. In this scheme, because image acquisition device can confirm first light source in the first image earlier, image acquisition device can confirm the region at first light source place in the first image promptly, then the sensitization parameter of the target sensitization unit that corresponds with this region of readjustment to after the sensitization parameter of this target sensitization unit of adjustment, at image acquisition device collection shooting image's in-process, can expose the compensation to image sensor, eliminate phenomenons such as dazzling (flare) or ghost, promoted the image definition that image acquisition device shot.

Optionally, in this embodiment of the present application, before step 201 described above, the image acquisition method provided in this embodiment of the present application further includes step 301 and step 302 described below.

Step 301, the image acquisition device controls the image sensor to acquire a first corrected image and at least one second corrected image.

In an embodiment of the present application, the first corrected image is a completely black image, and a light source position corresponding to each second corrected image is different.

Optionally, in this embodiment of the application, the image capturing device may control the light transmittance of the light transmission control layer, so that the first corrected image is a completely black image.

Step 302, the image acquisition device obtains at least one correction matrix based on the first corrected image and the at least one second corrected image;

in this embodiment, the image acquisition device may obtain at least one second corrected image by shooting, where each of the at least one second corrected image includes a second light source, and taking an example that one second corrected image includes one second light source, the image acquisition device may obtain a pixel brightness value of the second corrected image, determine, as a region where the second light source is located, a region corresponding to a pixel value in which the pixel brightness value in the second corrected image is greater than the pixel brightness value in the first corrected image (for example, the pixel brightness values in the first corrected image are all 64), and then perform proportional operation on the pixel value in the region and a preset threshold value to obtain a correction matrix corresponding to the region.

For example, assuming that the pixel value of the area where the second light source is located in the second corrected image is 75/64/68, and the pixel luminance value of the first corrected image is 64, the image capturing device may perform division operations (i.e., 64/75, 64/64, 64/68) on the pixel luminance value of the first corrected image and the pixel luminance value of the area where the second light source is located, respectively, to obtain a quotient (i.e., 0.835, 1, 0.941) between the pixel value of the area where each second light source is located and the pixel luminance value of the first corrected image, where the quotient is the correction matrix.

It should be noted that the image capturing device may perform the above-mentioned processing on each of the at least one second corrected image to obtain a corresponding relationship between the at least one second corrected image and the at least one correction matrix.

It is to be understood that the image capturing apparatus may store a plurality of correction matrices corresponding to different light source positions, so that after the image capturing apparatus determines the position information of the first light source, a correction matrix corresponding to the position information of the first light source may be determined from at least one correspondence relationship stored in advance.

In the embodiment of the application, the image acquisition device can obtain the correction matrix corresponding to different light source positions according to the first correction image and the at least one second correction image, so that after the image acquisition device acquires the first image with the light source, the image acquisition device can obtain the correction matrix corresponding to the position of the light source in the first image according to the pre-stored corresponding relation, and thus, the image processing efficiency of the image acquisition device is improved.

It should be noted that, in the image capturing method provided in the embodiment of the present application, the execution subject may be an image capturing device, or an electronic device, or may also be a functional module or an entity in the electronic device. In the embodiment of the present application, an image acquisition method executed by an image acquisition apparatus is taken as an example to describe the image acquisition apparatus provided in the embodiment of the present application.

Fig. 10 shows a schematic diagram of a possible structure of an image capturing apparatus according to an embodiment of the present application. The image acquisition device comprises an image sensor, wherein the image sensor comprises a photosensitive layer, and the photosensitive layer comprises at least two photosensitive units. As shown in fig. 10, the image capturing apparatus 70 may include: a determination module 71, an adjustment module 72 and an acquisition module 73. A determining module 71, configured to determine a first light source based on a first image acquired by an image sensor; and determining a target adjustment parameter of a target photosensitive unit in the image sensor according to the first light source. An adjusting module 72, configured to determine a target adjusting parameter through the determining module 71, and adjust a parameter corresponding to the target photosensitive unit; and the acquisition module 73 is used for acquiring a target image through the image sensor adjusted by the adjustment module 72.

In a possible implementation manner, the acquiring module 73 is further configured to control the image sensor to acquire the first corrected image and the at least one second corrected image before the determining module 71 determines the target adjustment parameter of the target photosensitive unit in the image sensor according to the first light source; obtaining at least one correction matrix based on the first correction image and the at least one second correction image; the first corrected image is a full black image, and the light source position corresponding to each second corrected image is different.

In a possible implementation manner, the determining module 71 is specifically configured to, when the first light source is matched with the second light source corresponding to the first target correction image, use a target correction matrix corresponding to the first target correction image as a target adjustment parameter; the first target corrected image is an image in at least one second corrected image.

In a possible implementation manner, the image capturing device further includes a microlens layer and a light transmission control layer, the light transmission control layer is located between the microlens layer and the photosensitive layer, and the target adjustment parameter includes: a light transmittance parameter; the adjusting module 72 is specifically configured to obtain a target transmittance based on the transmittance parameter; and adjusting the light transmittance of the light transmission control layer corresponding to the target photosensitive unit to be the target light transmittance through the light transmission control layer.

In a possible implementation manner, the material of the light transmission control layer is an electrochromic material.

In one possible implementation, the image sensor includes: each photosensitive unit is correspondingly provided with a signal control circuit, and the target adjustment parameters comprise: an exposure gain parameter; the adjusting module 72 is specifically configured to obtain a target exposure gain based on the exposure gain parameter; and adjusting the gain value corresponding to the target photosensitive unit to the target exposure gain through the signal control circuit.

In one possible implementation, the signal control circuit includes: the first control module is connected with the first end of the photosensitive unit and used for adjusting the signal voltage corresponding to the photosensitive unit, and the second end of the photosensitive unit is grounded; the second control module is connected with the first control module, is also connected with the output end of the signal control circuit, and is used for adjusting conversion gain; the conversion gain is used for indicating the gain for converting the signal voltage corresponding to the first control module into the output voltage; the adjusting module 72 is specifically configured to adjust a gain value corresponding to the target light-sensing unit to a target exposure gain based on the target control module; wherein the target control module comprises at least one of: the device comprises a first control module and a second control module.

In a possible implementation manner, the first control module includes: the photosensitive unit comprises N first switching pieces and N first capacitors, wherein each first switching piece is connected with the photosensitive unit through one first capacitor, and N is a positive integer; the second control module includes: the first control module is connected with the M second switching elements and the M signal amplifiers through the first switching elements; the adjusting module 72 is specifically configured to control P target switches to be in an on state to adjust an output voltage signal of the target control module, where P is equal to or less than M + N, where the P target switches are switches of the N first switches and the M second switches.

In a possible implementation manner, the first control module includes: the first end of the first capacitor is grounded, and the second end of the first capacitor is connected with the first end of the photosensitive unit through a first switching tube; the first end of the second capacitor is grounded, and the second end of the second capacitor is connected with the first end of the photosensitive unit through a second switching tube; the first end of the third capacitor is grounded, and the second end of the third capacitor is connected with the first end of the photosensitive unit through a third switching tube; the adjusting module 72 is specifically configured to, in a case that the target control module includes a first control module, control the first target switch tube to be in a connected state, and adjust a gain value corresponding to the target photosensitive unit to a target exposure gain; wherein the first target switch tube comprises at least one of: the first switch tube, the second switch tube and the third switch tube.

In a possible implementation manner, the second control module includes: the first end of the first target source electrode follower is connected with the first control module through a fourth switching tube; the first end of the second target source electrode follower is connected with the first control module through a fifth switching tube, and the first end of the second target source electrode follower is also connected with the second end of the first target source electrode follower; the first end of the third target source electrode follower is connected with the first control module through a sixth switching tube, the first end of the third target source electrode follower is also connected with the second end of the second target source electrode follower, and the second end of the third target source electrode follower is connected with the output end of the signal control circuit; the adjusting module 72 is specifically configured to, when the target control module includes a second control module, control the second target switch tube to be in a connected state, and adjust the gain value corresponding to the target photosensitive unit to the target exposure gain; wherein the second target switch tube comprises at least one of: a fourth switching tube, a fifth switching tube and a sixth switching tube.

The embodiment of the application provides an image acquisition device, because image acquisition device can confirm first light source in the first image earlier, image acquisition device can confirm the region at first light source place in the first image promptly, then the sensitization parameter of the target sensitization unit that corresponds with this region of readjustment, thereby after the sensitization parameter of this target sensitization unit of adjustment, in the in-process of image acquisition device collection shooting image, can expose the compensation to image sensor, eliminate phenomenons such as dazzling light (flare) or ghost, the image definition that image acquisition device shot has been promoted.

The image acquisition device in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in an electronic device. The device can be mobile electronic equipment or non-mobile electronic equipment. The Mobile electronic Device may be, for example, a Mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted electronic Device, a Mobile Internet Device (MID), an Augmented Reality (AR)/Virtual Reality (VR) Device, a robot, a wearable Device, an ultra-Mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and may also be a server, a Network Attached Storage (Storage), a personal computer (NAS), a Television (TV), a teller machine, a self-service machine, and the like, and the embodiments of the present application are not limited in particular.

The image acquisition device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android (Android) operating system, an IOS operating system, or other possible operating systems, which is not specifically limited in the embodiments of the present application.

The image acquisition device provided by the embodiment of the application can realize each process realized by the method embodiments of fig. 1 to 9, achieve the same technical effect, and is not repeated here for avoiding repetition.

Optionally, as shown in fig. 11, an electronic device 90 is further provided in this embodiment of the present application, and includes a processor 91 and a memory 92, where the memory 92 stores a program or an instruction that can be executed on the processor 91, and when the program or the instruction is executed by the processor 91, the steps of the embodiment of the image capturing method are implemented, and the same technical effects can be achieved, and are not described again to avoid repetition.

It should be noted that the electronic device in the embodiment of the present application includes the mobile electronic device and the non-mobile electronic device described above.

Fig. 12 is a schematic hardware structure diagram of an electronic device implementing an embodiment of the present application.

The electronic device 100 includes, but is not limited to: a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, and a processor 110.

Those skilled in the art will appreciate that the electronic device 100 may further comprise a power source (e.g., a battery) for supplying power to various components, and the power source may be logically connected to the processor 110 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system. The electronic device structure shown in fig. 12 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description is not repeated here.

The electronic device further comprises an image sensor comprising a photosensitive layer comprising at least two photosensitive cells.

Wherein, the processor 110 is configured to determine a first light source based on a first image acquired by the image sensor; determining a target adjustment parameter of a target photosensitive unit in the image sensor according to the first light source; adjusting parameters corresponding to the target photosensitive unit through the target adjustment parameters; and acquiring a target image through the adjusted image sensor.

The embodiment of the application provides an electronic equipment, because first light source in the first image can be confirmed earlier to electronic equipment, the region that first light source place in the first image can be confirmed to electronic equipment promptly, then the sensitization parameter of the target sensitization unit that corresponds with this region is adjusted again, thereby after the sensitization parameter of this target sensitization unit of adjustment, at the in-process of image acquisition device collection shooting image, can expose compensation to image sensor, eliminate phenomenons such as glare (flare) or ghost, the image definition that electronic equipment shot has been promoted.

Optionally, in this embodiment of the application, the processor 110 is further configured to control the image sensor to acquire the first corrected image and the at least one second corrected image before determining the target adjustment parameter of the target photosensitive unit in the image sensor according to the first light source; obtaining at least one correction matrix based on the first correction image and the at least one second correction image; the first corrected image is a completely black image, and the light source position corresponding to each second corrected image in the at least one second corrected image is different.

Optionally, in this embodiment of the application, the processor 110 is specifically configured to, when the first light source is matched with the second light source corresponding to the first target correction image, use a target correction matrix corresponding to the first target correction image as the target adjustment parameter; the first target corrected image is an image in at least one second corrected image.

Optionally, in this embodiment of the application, the image capturing device further includes a microlens layer and a light transmission control layer, the light transmission control layer is located between the microlens layer and the photosensitive layer, and the target adjustment parameter includes: a light transmittance parameter; the processor 110 is specifically configured to obtain a target light transmittance based on the light transmittance parameter; and adjusting the light transmittance of the light transmission control layer corresponding to the target photosensitive unit to be the target light transmittance through the light transmission control layer.

Optionally, in an embodiment of the present application, the image sensor includes: each photosensitive unit is correspondingly provided with a signal control circuit, and the target adjustment parameters comprise: an exposure gain parameter; the processor 110 is specifically configured to obtain a target exposure gain based on the exposure gain parameter; and adjusting the gain value corresponding to the target photosensitive unit to be the target exposure gain through a signal control circuit.

Optionally, in an embodiment of the present application, the signal control circuit includes: the first control module is connected with the first end of the photosensitive unit and used for adjusting the signal voltage corresponding to the photosensitive unit, and the second end of the photosensitive unit is grounded; the second control module is connected with the first control module, is also connected with the output end of the signal control circuit, and is used for adjusting conversion gain; the conversion gain is used for indicating the gain for converting the signal voltage corresponding to the first control module into the output voltage; the processor 110 is specifically configured to adjust a gain value corresponding to the target light-sensing unit to a target exposure gain based on the target control module; wherein the target control module comprises at least one of: the device comprises a first control module and a second control module.

Optionally, in this embodiment of the application, the first control module includes: the photosensitive unit comprises N first switching pieces and N first capacitors, wherein each first switching piece is connected with the photosensitive unit through one first capacitor, and N is a positive integer; the second control module includes: the first control module is connected with the M second switching elements and the M signal amplifiers through the first switching elements; the processor 110 is specifically configured to control P target switches to be in an on state to adjust an output voltage signal of the target control module, where P is less than or equal to M + N, where the P target switches are switches among the N first switches and the M second switches.

Optionally, in this embodiment of the application, the first control module includes: the first end of the first capacitor is grounded, and the second end of the first capacitor is connected with the first end of the photosensitive unit through a first switching tube; the first end of the second capacitor is grounded, and the second end of the second capacitor is connected with the first end of the photosensitive unit through a second switching tube; a first end of the third capacitor is grounded, and a second end of the third capacitor is connected with the first end of the photosensitive unit through a third switching tube; the processor 110 is specifically configured to control the first target switch tube to be in a connected state, and adjust a gain value corresponding to the target light sensing unit to a target exposure gain; wherein the first target switch tube comprises at least one of: the first switch tube, the second switch tube and the third switch tube.

Optionally, in this embodiment of the application, the second control module includes: the first end of the first target source electrode follower is connected with the first control module through a fourth switching tube; a first end of the second target source follower is connected with the first control module through a fifth switching tube, and the first end of the second target source follower is also connected with a second end of the first target source follower; the first end of the third target source electrode follower is connected with the first control module through a sixth switching tube, the first end of the third target source electrode follower is also connected with the second end of the second target source electrode follower, and the second end of the third target source electrode follower is connected with the output end of the signal control circuit; the processor 110 is specifically configured to control the second target switch tube to be in a connected state, and adjust a gain value corresponding to the target light sensing unit to a target exposure gain; wherein the second target switch tube comprises at least one of the following: a fourth switching tube, a fifth switching tube and a sixth switching tube.

The electronic device provided by the embodiment of the application can realize each process realized by the method embodiment, and can achieve the same technical effect, and for avoiding repetition, the details are not repeated here.

The beneficial effects of the various implementation manners in this embodiment may specifically refer to the beneficial effects of the corresponding implementation manners in the above method embodiments, and are not described herein again to avoid repetition.

It should be understood that, in the embodiment of the present application, the input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, and the Graphics Processing Unit 1041 processes image data of a still picture or a video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 107 includes at least one of a touch panel 1071 and other input devices 1072. The touch panel 1071 is also referred to as a touch screen. The touch panel 1071 may include two parts of a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a first storage area storing a program or an instruction and a second storage area storing data, wherein the first storage area may store an operating system, an application program or an instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, memory 109 may include volatile memory or non-volatile memory, or memory 109 may include both volatile and non-volatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM), a Static Random Access Memory (Static RAM, SRAM), a Dynamic Random Access Memory (Dynamic RAM, DRAM), a Synchronous Dynamic Random Access Memory (Synchronous DRAM, SDRAM), a Double Data Rate Synchronous Dynamic Random Access Memory (Double Data Rate SDRAM, ddr SDRAM), an Enhanced Synchronous SDRAM (ESDRAM), a Synchronous Link DRAM (SLDRAM), and a Direct Memory bus RAM (DRRAM). Memory 109 in the embodiments of the subject application includes, but is not limited to, these and any other suitable types of memory.

Processor 110 may include one or more processing units; optionally, the processor 110 integrates an application processor, which primarily handles operations involving the operating system, user interface, and applications, etc., and a modem processor, which primarily handles wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements the processes of the foregoing method embodiments, and can achieve the same technical effects, and in order to avoid repetition, details are not repeated here.

The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read only memory ROM, a random access memory RAM, a magnetic or optical disk, and the like.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the foregoing method embodiment, and the same technical effect can be achieved.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.

Embodiments of the present application provide a computer program product, where the program product is stored in a storage medium, and the program product is executed by at least one processor to implement the processes in the above-mentioned embodiments of the image acquisition method, and can achieve the same technical effects, and in order to avoid repetition, details are not repeated here.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An image acquisition method is applied to an image acquisition device, the image acquisition device comprises an image sensor, the image sensor comprises a photosensitive layer, the photosensitive layer comprises at least two photosensitive units, and the method comprises the following steps:

determining a first light source based on a first image acquired by the image sensor;

determining a target adjustment parameter of a target photosensitive unit in the image sensor according to the first light source;

adjusting parameters corresponding to the target photosensitive unit through the target adjustment parameters;

and acquiring a target image through the adjusted image sensor.

2. The method of claim 1, wherein before determining the target adjustment parameter for the target light-sensing unit in the image sensor based on the first light source, the method further comprises:

controlling the image sensor to acquire a first corrected image and at least one second corrected image;

obtaining at least one rectification matrix based on the first rectification image and the at least one second rectification image;

the first corrected image is a completely black image, and the light source position corresponding to each second corrected image is different.

3. The method according to claim 1 or 2, wherein determining the target adjustment parameter of the target photosensitive unit in the image sensor according to the first light source comprises:

under the condition that the first light source is matched with a second light source corresponding to a first target correction image, taking a target correction matrix corresponding to the first target correction image as the target adjustment parameter;

wherein the first target rectified image is an image of the at least one second rectified image.

4. The method of claim 1, wherein the image capture device further comprises a microlens layer and a transmission control layer, the transmission control layer being located between the microlens layer and the photosensitive layer, the target adjustment parameters comprising: a light transmittance parameter;

the adjusting the parameters corresponding to the target photosensitive unit through the target adjusting parameters includes:

obtaining a target light transmittance based on the light transmittance parameter;

and adjusting the light transmittance of the light transmission control layer corresponding to the target photosensitive unit to be the target light transmittance through the light transmission control layer.

5. The method of claim 4, wherein the material of the light transmission control layer is an electrochromic material.

6. The method of claim 1, wherein the image sensor comprises: the signal control circuit is correspondingly arranged on each photosensitive unit, and the target adjusting parameters comprise: an exposure gain parameter;

obtaining a target exposure gain based on the exposure gain parameter;

and adjusting the gain value corresponding to the target photosensitive unit to the target exposure gain through the signal control circuit.

7. The method of claim 6, wherein the signal control circuit comprises:

the first control module is connected with the first end of the photosensitive unit, the first control module is used for adjusting the signal voltage corresponding to the photosensitive unit, and the second end of the photosensitive unit is grounded;

the second control module is connected with the first control module, is also connected with the output end of the signal control circuit, and is used for adjusting conversion gain;

the conversion gain is used for indicating the gain for converting the signal voltage corresponding to the first control module into the output voltage;

the adjusting, by the signal control circuit, the gain value corresponding to the target photosensitive unit to the target exposure gain includes:

based on a target control module, adjusting a gain value corresponding to the target photosensitive unit to be the target exposure gain;

wherein the target control module comprises at least one of: the first control module and the second control module.

8. The method of claim 7, wherein the first control module comprises: the photosensitive unit comprises N first switching pieces and N first capacitors, wherein each first switching piece is connected with the photosensitive unit through one first capacitor, and N is a positive integer;

the second control module includes: the first control module is connected with the first switch piece through a first signal amplifier, and M is a positive integer;

and controlling P target switching pieces to be in a pass state so as to adjust an output voltage signal of the target control module, wherein P is less than or equal to M + N, and the P target switching pieces are switching pieces in the N first switching pieces and the M second switching pieces.

9. The method of claim 7, wherein the first control module comprises:

the first end of the first capacitor is grounded, and the second end of the first capacitor is connected with the first end of the photosensitive unit through a first switching tube;

a first end of the second capacitor is grounded, and a second end of the second capacitor is connected with the first end of the photosensitive unit through a second switching tube;

a first end of the third capacitor is grounded, and a second end of the third capacitor is connected with the first end of the photosensitive unit through a third switching tube;

in a case that the target control module includes the first control module, the adjusting the gain value corresponding to the target light-sensing unit to the target exposure gain based on the target control module includes:

controlling a first target switching tube to be in a connected state, and adjusting a gain value corresponding to the target photosensitive unit to be the target exposure gain;

wherein the first target switch tube comprises at least one of: the first switch tube, the second switch tube and the third switch tube.

10. The photographing method according to claim 7, wherein the second control module includes:

a first target source follower, a first end of which is connected with the first control module through a fourth switch tube;

a first end of the second target source follower is connected with the first control module through a fifth switching tube, and the first end of the second target source follower is also connected with a second end of the first target source follower;

a first end of the third target source follower is connected with the first control module through a sixth switching tube, the first end of the third target source follower is further connected with a second end of the second target source follower, and the second end of the third target source follower is connected with the output end of the signal control circuit;

in a case that the target control module includes the second control module, the adjusting the gain value corresponding to the target light-sensing unit to the target exposure gain based on the target control module includes:

controlling a second target switch tube to be in a communicated state, and adjusting a gain value corresponding to the target photosensitive unit to be the target exposure gain;

wherein the second target switch tube comprises at least one of: the fourth switch tube, the fifth switch tube and the sixth switch tube.

11. An image capturing device, the image capturing device comprising an image sensor, the image sensor comprising a photosensitive layer, the photosensitive layer comprising at least two photosensitive units, the image capturing device further comprising: the device comprises a determining module, an adjusting module and an acquisition module;

the determining module is used for determining a first light source based on a first image acquired by the image sensor; determining a target adjustment parameter of a target photosensitive unit in the image sensor according to the first light source;

the adjusting module is used for determining the target adjusting parameters through the determining module and adjusting the parameters corresponding to the target photosensitive unit;

and the acquisition module is used for acquiring a target image through the image sensor adjusted by the adjusting module.

12. The apparatus according to claim 11, wherein the acquiring module is further configured to control the image sensor to acquire a first corrected image and at least one second corrected image before the determining module determines the target adjustment parameter of the target photosensitive unit in the image sensor according to the first light source; obtaining at least one correction matrix based on the first corrected image and the at least one second corrected image; the first corrected image is a completely black image, and the light source position corresponding to each second corrected image is different.

13. The apparatus according to claim 11 or 12, wherein the determining module is specifically configured to, when the first light source matches a second light source corresponding to a first target correction image, use a target correction matrix corresponding to the first target correction image as the target adjustment parameter; wherein the first target rectified image is an image of the at least one second rectified image.

14. An electronic device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the image acquisition method according to any one of claims 1 to 10.

15. A readable storage medium, characterized in that it stores thereon a program or instructions which, when executed by a processor, implement the steps of the image acquisition method according to any one of claims 1 to 10.