CN113301280B - Pixel circuit of photosensitive block, image processing method and device and electronic equipment - Google Patents

Abstract

The embodiment of the application provides a pixel circuit of a photosensitive block, an image processing method, an image processing device and electronic equipment. The pixel circuit of the photosensitive block comprises: at least three pixel cells and at least one charge storage device; each pixel unit comprises a photodiode for converting an optical signal into an electrical signal; the photodiodes of at least two pixel units are electrically connected with the same charge storage device and used for charging the charge storage device to obtain pixel information of the photosensitive block. The charge storage device is charged to the same charge storage device through the photodiodes of at least two pixel units, so that the charging time of the charge storage device is shortened, the time of exposure integration is greatly shortened, the image imaging and transmission speed are improved, the technical problem of poor display effect caused by display delay is avoided, and the user experience is improved.

Description

Pixel circuit of photosensitive block, image processing method, device and electronic equipment

technical field

The present application relates to the technical field of image processing, and in particular, the present application relates to a pixel circuit of a photosensitive block, an image processing method, device and electronic equipment.

Background technique

The camera can replace the human eye to obtain places that people cannot reach, and is an extension of human vision. There will be a long time delay between obtaining information on the camera side and displaying it on the display side. This end-to-end delay is quite different from the characteristics of human eyes to obtain information.

At present, there will be a display delay problem from the camera end to the display end, which makes the display effect poor and reduces the user experience.

Contents of the invention

Aiming at the shortcomings of the existing methods, the present application proposes a pixel circuit of a photosensitive block, an image processing method, device and electronic equipment to solve the technical problem of poor display effect caused by display delay in the prior art.

In a first aspect, an embodiment of the present application provides a pixel circuit of a photosensitive block, including: at least three pixel units and at least one charge storage device;

Each pixel unit includes a photodiode for converting light signals into electrical signals;

The photodiodes of at least two pixel units are electrically connected to the same charge storage device for charging the charge storage device to obtain pixel information of the photosensitive block.

In a possible implementation, the pixel circuit includes a charge storage device;

The photodiodes are all electrically connected to the same charge storage device.

In a possible implementation, each pixel unit is provided with a color filter layer of a preset color; the preset color includes a first color, a second color and a third color;

Among the color filter layers of preset colors, the number of color filter layers of two colors is the same.

In a possible implementation, the pixel circuit includes three charge storage devices;

The photodiodes corresponding to the color filter layers of the same color are electrically connected to the same charge storage device.

In a possible implementation manner, the pixel circuit further includes: at least three first switching devices;

The first ends of the first switching devices are electrically connected to a photodiode, the second ends of the first switching devices are electrically connected to the first ends of the charge storage device, and the control ends of the first switching devices are connected to the same data signal line. electrical connection;

The second terminal of the charge storage device is grounded.

In a possible implementation manner, the pixel circuit further includes: at least one second switching device;

Each row of pixel units is electrically connected to a first gate signal line;

At least one second switching device is arranged in sequence, the first terminal of the first second switching device is electrically connected to the first voltage terminal, and the second terminal of the previous second switching device is electrically connected to the first terminal of the subsequent second switching device. connected and the connection node is electrically connected to a first gate signal line, and the second end of the last second switching device is electrically connected to the first gate signal line corresponding to the last row of pixel units;

The control ends of the second switching devices are all electrically connected to the same second gate signal line.

In a second aspect, an embodiment of the present application provides an image processing method, including:

When it is detected that the speed of the moving target in the image area is greater than the preset speed threshold, the first scanning mode is switched to a block scanning mode; the block scanning mode adopts the pixel circuit of the photosensitive block as in the first aspect;

The photodiodes of at least two pixel units of each photosensitive block are sequentially controlled to charge the same charge storage device to obtain pixel information of the image area.

In a possible implementation manner, the first scanning manner adopts a progressive scanning manner.

In a third aspect, the embodiment of the present application provides an image processing device, including:

The first control module is configured to switch the first scanning mode to a block scanning mode when it is detected that the speed of the moving target in the image area is greater than a preset speed threshold; the block scanning mode adopts the pixel circuit of the photosensitive block in the first aspect;

The second control module is used to sequentially control the photodiodes of at least two pixel units of each photosensitive block to charge the same charge storage device to obtain pixel information of the image area.

In a fourth aspect, an embodiment of the present application provides an electronic device, including: a detection unit, a control unit, and the pixel circuit of the first aspect;

The detection unit is electrically connected with the control unit, and is used for detecting the speed of the moving object in the image area, and sending the speed of the moving object to the control unit;

The control unit is configured to switch the first scanning mode to a block scanning mode when it is detected that the speed of the moving target in the image area is greater than the preset speed threshold, and sequentially control the photodiodes of at least two pixel units of each photosensitive block to A capacitor is charged to obtain the pixel information of the image area.

In the fifth aspect, the embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, and the computer program is stored, and when the computer program is executed by an electronic device, the image processing method according to the second aspect is implemented.

The beneficial technical effects brought by the technical solutions provided by the embodiments of the present application include:

In the embodiment of the present application, when the speed of the moving target in the image area is detected to be greater than the preset speed threshold, the first scanning mode is switched to the block scanning mode, and the photodiodes of at least two pixel units of each photosensitive block are sequentially controlled to move to the same The charge storage device is charged, thereby shortening the charging time of the charge storage device, greatly reducing the time of exposure integration, improving image imaging and transmission speed, avoiding the technical problem of poor display effect caused by display delay, and improving user experience .

Additional aspects and advantages of the application will be set forth in part in the description which follows, and will become apparent from the description, or may be learned by practice of the application.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, wherein:

FIG. 1 is a flow chart of an image processing method provided in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of an image processing device provided in an embodiment of the present application;

FIG. 3 is a schematic structural diagram of an electronic device provided in an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a pixel circuit of a photosensitive block provided in an embodiment of the present application;

FIG. 5 is a schematic diagram of arrangement of pixel units of a pixel circuit of a photosensitive block provided in an embodiment of the present application;

FIG. 6 is a schematic structural diagram of another pixel circuit of a photosensitive block corresponding to the arrangement of pixel units in FIG. 5 according to an embodiment of the present application.

Detailed ways

The present application is described in detail below, and examples of embodiments of the present application are shown in the drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. Also, detailed descriptions of known technologies will be omitted if they are not necessary to illustrate the features of the present application. The embodiments described below by referring to the figures are exemplary only for explaining the present application, and are not construed as limiting the present application.

Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as commonly understood by those of ordinary skill in the art to which this application belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be understood to have meanings consistent with their meaning in the context of the prior art, and unless specifically defined as herein, are not intended to be idealized or overly Formal meaning to explain.

Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the specification of the present application refers to the presence of the features, integers, steps, operations, elements and/or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Additionally, "connected" or "coupled" as used herein may include wireless connection or wireless coupling. The expression "and/or" used herein includes all or any elements and all combinations of one or more associated listed items.

The inventor of the present application conducted research and found that the sensor is the core of the camera, responsible for converting the optical signal passing through the Lens into an electrical signal, and then converting it into a digital signal through an internal AD (digital-to-analog conversion). Camera Sensor has two kinds of pixel arrays, one is RGB array, and the other is Bayer array (Bayer pattern). Currently, Bayer array is more widely used in the market.

RGB (Red, Green, Blue, red, green, blue) array, that is, filters of different colors are added to each pixel to filter out the colors of the three channels of RGB.

The Bayer pattern is used to solve the problem that the color cost of the three channels of RGB is too high due to the addition of filters of different colors to each pixel. There is no three-color filter placed on each pixel of the Bayer array, but a single-color filter is placed at intervals between each pixel. Each channel gets a partially vacant picture, and this vacant value can be filled by various interpolation methods. The three channels are arranged in an orderly manner. For example, the bayer array is composed of repeated arrangements of 2x2 small grids, because human vision is more sensitive to green. There are 1 R, 1 B, and 2 G in the four grids. Ideally, each pixel should have three color values, but in fact R and B are only 1/4, and G is only 1/2. Therefore, only 1/3 of the image obtained by bayer pattern is real, and the rest are obtained by interpolation. , which also shows that natural images have a lot of redundant information.

The inventors of the present application have further researched and found that the camera can replace the human eye to obtain places that people cannot reach, and is an extension of human vision. In the current market, there will be a large delay in obtaining information from the camera terminal to displaying it on the display terminal. This end-to-end delay is quite different from the characteristics of human eyes to obtain information. A new technical solution is needed to reduce this end-to-end delay to meet the needs of human eyes.

The present application provides a pixel circuit of a photosensitive block, an image processing method, device and electronic equipment, aiming to solve the above technical problems in the prior art.

The technical solution of the present application and how the technical solution of the present application solves the above technical problems will be described in detail below with specific embodiments.

An embodiment of the present application provides an image processing method, as shown in FIG. 1 , the image processing method includes: step S101 to step S102.

S101. When it is detected that the speed of the moving target in the image area is greater than the preset speed threshold, switch the first scanning mode to a block scanning mode; the block scanning mode adopts the pixel circuit of the photosensitive block in any embodiment of the present application, and the photosensitive block For the specific structure of the pixel circuit, please refer to the subsequent specific introduction.

Optionally, in the embodiment of the present application, when a high-speed moving object is photographed, the sensor switches the integral exposure, and uses the block scanning method in the embodiment of the present application to perform image processing.

S102 , sequentially controlling the photodiodes 10 of at least two pixel units of each photosensitive block to charge the same charge storage device 20 to obtain pixel information of the image area. The specific structure of the pixel circuit of the photosensitive block is shown in FIG. 4 and FIG. 6 .

Optionally, the photodiodes 10 of at least two pixel units of each photosensitive block are sequentially controlled to charge the same charge storage device 20 to obtain corresponding pixel information of each photosensitive block, thereby obtaining pixel information of the entire image area.

In the embodiment of the present application, when the speed of the moving object in the image area is greater than the preset speed threshold, the scanning mode can be switched to a block scanning mode, and the photodiodes 10 of at least two pixel units of each photosensitive block can be sequentially controlled to charge to the same charge storage. The device 20 is charged, thereby shortening the charging time of the charge storage device 20, greatly reducing the time of exposure integration, improving image imaging and transmission speed, avoiding the technical problem of poor display effect caused by display delay, and improving user experience. .

The inventors of the present application consider that there are two sensor exposure scanning methods, one is rolling exposure scanning, and the other is global exposure. At present, rolling exposure scanning is an exposure method with a relatively high adoption rate.

Rolling exposure scanning means row-by-row exposure and row-by-row readout, sensor row-by-row exposure starts from the first row, and the second row starts to expose after a row period ends. By analogy, after N-1 rows, the Nth row starts to be exposed. Data is read out after the exposure of the first row ends, and a row cycle time (including row blanking time) is required to read out one row. After the first row is completely read out, the second row just starts to be read out, and so on, when the N-1th row is read out, the Nth row starts to be read out until the entire image is completely read out.

Global exposure scanning is frame exposure scanning. All rows of the Sensor start to expose at the same time and end the exposure at the same time. After the exposure is over, the Sensor transfers all electrons from the photosensitive block to the storage area, and then reads out the pixel data row by row. The advantage of such exposure is that the exposure time of each row of the image is relatively consistent, and the image will not shift and skew when shooting moving objects.

The inventors of the present application have further researched and found that rolling exposure scanning is an exposure method with a relatively high adoption rate at present. It has the characteristics of long time-consuming progressive scanning and time-delay in image formation. The block-by-block scanning method used in the embodiment of the present application is to pack the pixel units in each frame of image into blocks and then perform exposure scanning. This method can reduce the line scanning time and line blanking time at the same time, thereby improving the exposure time and imaging speed. .

In some embodiments, the first scanning method adopts a progressive scanning method.

Optionally, the progressive scanning method, that is, the existing rolling exposure scanning method, may also adopt other existing normal exposure methods.

Compared with the existing progressive scanning method, the block-by-block scanning method in the embodiment of the present application reduces the number of scanning lines and saves time for line scanning and line blanking.

The block scanning method of the embodiment of the present application can reduce the end-to-end delay, enable people to obtain external information at the first time, and ensure the real-time performance of the information. When the speed of the moving target in the detected image area is greater than the preset speed threshold , and preset an acceptable speed upper limit threshold based on the human eye response, that is, to ensure that when the upper limit is exceeded, the scene picture can basically be ignored. When the head rotates rapidly and it is detected that the moving speed exceeds the preset speed threshold, the exposure mode is automatically switched to block scanning mode. The characteristic of human eyes observing things is that the display speed and picture clarity of the freeze-frame picture are relatively high. When the head is turned quickly, it does not pay special attention to the surrounding scene. Therefore, the block scanning method will reduce the resolution of the scene, and increase the data transmission speed of each frame by reducing the amount of display data, thereby reducing the problem of transmission delay.

Based on the same inventive concept, an embodiment of the present application provides an image processing device, as shown in FIG. 2 , the image processing device 200 includes: a first control module 210 and a second control module 220 .

The first control module 210 is configured to switch the first scanning mode to a block scanning mode when it is detected that the speed of the moving object in the image area is greater than the preset speed threshold; the block scanning mode adopts the photosensitive block of any embodiment of the present application pixel circuit.

The second control module 220 is configured to sequentially control the photodiodes 10 of at least two pixel units of each photosensitive block to charge the same charge storage device 20 to obtain pixel information of the image area.

Optionally, the first scanning mode adopts a progressive scanning mode.

Based on the same inventive concept, an embodiment of the present application provides an electronic device, as shown in FIG. 3 , the electronic device 300 includes: a detection unit 310 , a control unit 320 and a pixel circuit 330 of the photosensitive block of any embodiment of the present application.

The detection unit 310 is electrically connected with the control unit 320 , and is used for detecting the speed of the moving object in the image area and sending the speed of the moving object to the control unit 320 .

The control unit 320 is configured to switch the first scanning mode to a block scanning mode when it is detected that the speed of the moving object in the image area is greater than the preset speed threshold, and sequentially control the direction of the photodiodes 10 of at least two pixel units of each photosensitive block to The same capacitor is charged to obtain the pixel information of the image area.

Optionally, the detection unit 310 includes a sensor for detecting the speed of the moving object in the image area.

Optionally, the electronic device 300 may be AR (Augmented Reality, Augmented Reality) glasses. When a person wears the AR glasses and turns quickly, the image processing method of the embodiment of the present application is required to improve the display effect and user experience.

An embodiment of the present application provides a pixel circuit of a photosensitive block, including: at least three pixel units and at least one charge storage device 20 .

Each pixel unit includes a photodiode 10 for converting light signals into electrical signals.

The photodiodes 10 of at least two pixel units are electrically connected to the same charge storage device 20 for charging the charge storage device 20 to obtain pixel information of the photosensitive block.

The embodiment of the present application is for two kinds of pixel arrays of the current image sensor, ie, RGB pixel array and Bayer array, corresponding to the pixel circuits of the photosensitive blocks of the two pixel arrays in the block-by-block exposure scanning mode.

In some embodiments, as shown in FIG. 4 , the pixel circuit includes a charge storage device 20 ; and the photodiodes 10 are electrically connected to the same charge storage device 20 .

As shown in FIG. 4, the charge storage device 20 is a first capacitor C1, and the nine photodiodes 10 are electrically connected to the first capacitor C1 to charge the first capacitor C1, thereby shortening the charging time and greatly reducing the time for exposure integration. Smaller, improves image formation and transmission speed. Compared with the way in which each photodiode 10 in the RGB pixel array in the prior art is independently controlled by a capacitor unit, the embodiment of the present application shortens the charging time of the capacitor, and improves the imaging and transmission speed of images.

Optionally, the pixel circuit of each photosensitive block may also include 2, 4, 16 and other pixel units, and the photodiodes 10 connected to all the pixel units are electrically connected to the same charge storage device 20 .

In some embodiments, as shown in FIG. 6 , each pixel unit is provided with a color filter layer of a preset color; the preset colors include a first color, a second color and a third color.

Among the color filter layers of preset colors, the number of color filter layers of two colors is the same.

Optionally, the first color, the second color and the third color are three colors of R red, G green and B blue respectively, the number of red and blue filter layers is the same, and the number of green filter layers is greater than that of red and blue filter layer.

Optionally, as shown in FIG. 5 , the number of the first color R and the third color B is 2, and the number of the second color G is 4. The arrangement of the color filter layers of the pixel units shown in FIG. 6 corresponds to the arrangement of the pixel units in FIG. 5 .

In some embodiments, as shown in FIG. 6 , the pixel circuit includes three charge storage devices 20 . The photodiodes 10 corresponding to the color filter layers of the same color are electrically connected to the same charge storage device 20 . The three charge storage devices 20 include a second capacitor C2, a third capacitor C3 and a fourth capacitor C4.

In some embodiments, as shown in FIG. 4 and FIG. 6 , the pixel circuit further includes: at least three first switching devices 30 . In the embodiment of the present application, there are 9 first switching devices 30 in total, and not all of them are marked.

The first terminals of the first switching devices 30 are electrically connected to one photodiode 10, the second terminals of the first switching devices 30 are electrically connected to the first terminals of the charge storage device 20, and the control terminals of the first switching devices 30 are all electrically connected to each other. It is electrically connected with the same data signal line dataA. The second terminal of the charge storage device 20 is grounded.

In some embodiments, as shown in FIG. 4 and FIG. 6 , the pixel circuit further includes: at least one second switching device 40 . In the embodiment of the present application, there are three second switching devices 40 in total.

Each row of pixel units is electrically connected to a first gate signal line gate.

At least one second switching device 40 is arranged in sequence, the first terminal of the first second switching device 40 is electrically connected to the first voltage terminal, the second terminal of the previous second switching device 40 is connected to the second terminal of the next second switching device 40 The first end is electrically connected and the connection node is electrically connected to a first gate signal line gate, and the second end of the last second switching device 40 is electrically connected to the first gate signal line gate corresponding to the last row of pixel units.

The control terminals of the second switch device 40 are all electrically connected to the same second gate signal line gateA.

Optionally, both the first switching device 30 and the second switching device 40 are switching transistors.

Optionally, the anode of the photodiode 10 is electrically connected to the first gate signal line gate, and the cathode of the photodiode 10 is electrically connected to the first terminal of the first switching device 30 .

Optionally, the pixel circuit further includes: at least three third switching devices and at least three fifth capacitors. The first end of each third switching device is correspondingly electrically connected to a photodiode 10, the second end of each third switching device is correspondingly electrically connected to the first end of a fifth capacitor, and the second end of the fifth capacitor is grounded . The control end of the third switch device is connected to the control signal line. The third switching device is a switching transistor. Referring to FIG. 4 and FIG. 6 , the pixel circuit includes 9 third switching devices and 9 fifth capacitors.

As an example, as shown in FIG. 4, the embodiment of the present application uses a 3x3 photosensitive block array of an RGB pixel array as a basic unit, and connects the first gate signal line gate of the 3x3 photosensitive block through a second switching device 40, Then the 3x3 photosensitive block array is controlled to be turned on at the same time through a second gate signal line gateA. In the overall pixel circuit composed of multiple photosensitive blocks, each 3x3 photosensitive block array unit is connected together by nine first switching devices 30, one data signal line dataA, and nine photodiodes 10 are simultaneously turned on and turned on. Concentrate the charge to charge the first capacitor C1 to complete the photoelectric conversion.

As an example, as shown in FIG. 6, the embodiment of the present application uses the 3x3 photosensitive block array of the Bayer array as a basic unit, and the arrangement of pixel units is shown in FIG. 5, with 9 pixel units as a small whole, the first The pixel units of the color filter layers of the first color R, the second color G and the third color B are respectively connected to each other, that is, the photodiode 10 of the pixel unit corresponding to the first color R among the nine pixel units charges the third capacitor C3 , the photodiode 10 of the pixel unit corresponding to the second color G charges the second capacitor C2, and the photodiode 10 of the pixel unit corresponding to the third color B charges the fourth capacitor C4.

Optionally, as shown in FIG. 6, the number of pixel units corresponding to the second color G is larger than the number of pixel units corresponding to the first color R and the third color B, so when the display end uses RGB data, it performs binary processing on G , that is, use the 1/2 value of G.

In the prior art, a pixel unit obtained by the Bayer array can only perceive one of the first color R, the second color G, and the third color B, so the data stored in each pixel is monochromatic light, that is, the original Data Raw Data, this data cannot be directly displayed on the display side, and the ISP module is required to convert the Raw Data into RGB format.

The 9 pixels in the Bayer array of the embodiment of the present application are the basic unit, and all the photodiodes 10 corresponding to the first color R in the basic unit will simultaneously integrate charges to a third capacitor C3, so that the integration time will be increased to the original 2 times, the amount of data becomes 1/9 of the original. The photodiodes 10 corresponding to the second color G and the third color B charge the second capacitor C2 and the fourth capacitor C4 in the same way. In this way, each basic unit will eventually have three integrating capacitors R, G, and B, and finally form a large RGB pixel, which is directly used for display display. That is, the pixel unit of the photosensitive block in the embodiment of the present application does not need to send the original value to the ISP, and the ISP calculates other values of the photosensitive point through interpolation and special effect processing based on the other two values around the value of a single photosensitive point. The color value, thereby restoring the steps of RGB, can directly obtain RGB pixels, which can be directly used as display display, which saves the step of converting the display format in the ISP, improves the image imaging speed, and reduces the charging time, thereby reducing the camera. End-to-end display delay to display.

Based on the same inventive concept, an embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, and the computer program is stored, and when the computer program is executed by an electronic device, the image processing method of any embodiment of the present application is implemented.

It should be noted that the computer-readable medium in the present application may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. A computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to, electrical connections with one or more wires, portable computer diskettes, hard disks, random access memory (RAM), read-only memory (ROM), erasable Programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this application, however, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code therein. Such propagated data signals may take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing. The computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, and the computer-readable signal medium may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device . Program code embodied on a computer readable medium may be transmitted by any appropriate medium, including but not limited to wires, optical cables, RF (radio frequency), etc., or any suitable combination of the above.

The computer-readable medium in the embodiment of the present application may be included in the electronic device, or may exist independently without being assembled in the electronic device.

Those skilled in the art can understand that the various operations, methods, and steps, measures, and schemes in the processes that have been discussed in this application can be replaced, changed, combined, or deleted. Furthermore, the various operations, methods, and other steps, measures, and schemes in the processes that have been discussed in this application may also be replaced, changed, rearranged, decomposed, combined, or deleted. Further, steps, measures, and schemes in the prior art that have operations, methods, and processes disclosed in the present application may also be alternated, changed, rearranged, decomposed, combined, or deleted.

The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present application, unless otherwise specified, "plurality" means two or more.

In the description of this specification, specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in an appropriate manner.

It should be understood that although the various steps in the flow chart of the accompanying drawings are displayed sequentially according to the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in the flowcharts of the accompanying drawings may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but may be executed at different times, and the order of execution is also It is not necessarily performed sequentially, but may be performed alternately or alternately with at least a part of other steps or sub-steps or stages of other steps.

The above descriptions are only some implementations of the present application. It should be pointed out that for those of ordinary skill in the art, some improvements and modifications can be made without departing from the principle of the application. These improvements and modifications are also It should be regarded as the protection scope of this application.

Claims (10)

1. A pixel circuit of a photosensitive block, comprising: at least three pixel units, at least one charge storage device, and at least one second switching device; Each of the pixel units includes a photodiode for converting light signals into electrical signals; The photodiodes of the at least two pixel units are electrically connected to the same charge storage device, and are used to charge the photodiodes of the at least two pixel units to the same charge storage device when the speed of the moving target in the detected image area is greater than a preset speed threshold , to obtain the pixel information of the photosensitive block; The pixel units in each row are electrically connected to a first gate signal line; at least one of the second switching devices is arranged in sequence, the first end of the first second switching device is electrically connected to the first voltage end, The second end of the former second switching device is electrically connected to the first end of the latter second switching device, and the connection node is correspondingly electrically connected to a first gate signal line, and the last second switching device The second terminal of the second switching device is electrically connected to the first gate signal line corresponding to the pixel unit in the last row; the control terminals of the second switching devices are all electrically connected to the same second gate signal line. 2. The pixel circuit of the photosensitive block according to claim 1, wherein the pixel circuit comprises a charge storage device; The photodiodes are all electrically connected to the same charge storage device. 3. The pixel circuit of the photosensitive block according to claim 1, wherein each pixel unit is provided with a color filter layer of a preset color; the preset color includes a first color, a second color and third color; Among the color filter layers of the preset colors, the number of the color filter layers of two colors is the same. 4. The pixel circuit of the photosensitive block according to claim 3, wherein the pixel circuit comprises three charge storage devices; The photodiodes corresponding to the color filter layers of the same color are electrically connected to the same charge storage device. 5. The pixel circuit of the photosensitive block according to any one of claims 1-4, further comprising: at least three first switching devices; The first terminals of the first switching devices are electrically connected to a photodiode, the second terminals of the first switching devices are electrically connected to the first terminals of the charge storage device, and the first terminals of the first switching devices The control terminals are all electrically connected to the same data signal line; The second terminal of the charge storage device is grounded. 6. An image processing method, characterized in that, comprising: When it is detected that the speed of the moving target in the image area is greater than the preset speed threshold, the first scanning mode is switched to a block scanning mode; the block scanning mode adopts the photosensitive block according to any one of claims 1-5 the pixel circuit; The photodiodes of at least two pixel units of each photosensitive block are sequentially controlled to charge the same charge storage device to obtain pixel information of the image area. 7. The image processing method according to claim 6, wherein the first scanning mode adopts a progressive scanning mode. 8. An image processing device, comprising: The first control module is used to switch the first scanning mode to the block scanning mode when the speed of the moving target in the image area is detected to be greater than the preset speed threshold; the block scanning mode adopts any of claims 1-5 A pixel circuit of the photosensitive block described in one item; The second control module is used to sequentially control the photodiodes of at least two pixel units of each photosensitive block to charge the same charge storage device to obtain pixel information of the image area. 9. An electronic device, comprising: a detection unit, a control unit, and a pixel circuit of the photosensitive block according to any one of claims 1-5; The detection unit is electrically connected to the control unit, and is used to detect the speed of the moving object in the image area, and send the speed of the moving object to the control unit; The control unit is configured to switch the first scanning mode to a block scanning mode when it is detected that the speed of the moving object in the image area is greater than a preset speed threshold, and sequentially control the at least two pixel units of each photosensitive block. The photodiode charges the same capacitor to obtain the pixel information of the image area. 10. A computer-readable storage medium, on which a computer program is stored, wherein a computer program is stored, and when the computer program is executed by an electronic device, the image according to any one of claims 6 to 7 is realized Approach.

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