Method and device for determining splicing seam data of Micro LED splicing screen

Abstract

The invention belongs to the technical field of LED display, and particularly discloses a method and device for determining splicing seam data of a Micro LED spliced screen, and the method comprises the steps: obtaining a dark-state image and a bright-state image of a to-be-detected Micro LED spliced screen shot by a detection device, the detection device being a device for detecting the brightness and / or chromaticity of a to-be-detected Micro LED display, and the detection device being a device for detecting the brightness and / or chromaticity of the to-be-detected Micro LED display, and the detection device being a device for detecting the brightness and / or chromaticity of the to-be-detected Micro LED display; the dark-state image and the bright-state image are images of the to-be-tested Micro LED spliced screen in a closed state and an open state respectively; determining position information of a splicing seam area based on the dark-state image; and based on one or more of the dark-state image, the bright-state image and the position information of the splicing seam area, determining splicing seam data of the Micro LED splicing screen to be detected. According to the method and the device, the splicing seam data of the Micro LED splicing screen can be automatically acquired and quantitatively presented, and the consistency and the stability of detection are ensured while the detection efficiency is improved.

Description

Technical Field

[0001] The present application belongs to the field of LED display technology, and more specifically, relates to a method and device for determining splicing seam data of a Micro LED splicing screen. Background Art

[0002] Micro LED displays (Micro Light Emitting Diode Displays) display images by integrating a high-density, tiny LED array on a substrate. They offer advantages such as a wide color gamut, high brightness, low power consumption, high stability, and sensor integration. A Micro LED spliced ​​screen is a display device composed of multiple Micro LED screens, enabling large-scale, high-resolution displays.

[0003] Because each Micro LED screen is of fixed and tiny size, gaps often appear between the spliced ​​screens, affecting the overall display quality. Furthermore, slight differences in brightness and color performance can occur between different Micro LED screens, affecting the overall display quality after splicing, resulting in uneven brightness and color differences. Technical measures, such as seamless splicing, micro-seam splicing, and optical adjustment, can reduce the appearance of splicing gaps and adjust the optical parameters of different Micro LED screens, thereby improving the overall display quality of the spliced ​​screen.

[0004] After stitching is complete, the seams need to be inspected and assessed. Currently, this is typically done by visually identifying dimly lit areas and the size of the seams, while also relying on experience to determine if the seams are acceptable. Manual inspection is subjective and fails to provide objective, quantitative seam data. This results in significant errors in subsequent seam assessments and is inefficient. Summary of the Invention

[0005] In response to the defects of related technologies, the embodiments of the present application provide a method and device for determining the splicing seam data of a Micro LED splicing screen, aiming to solve the problem that manual detection cannot obtain objective and quantitative splicing seam data.

[0006] In a first aspect, an embodiment of the present application provides a method for determining splicing seam data of a Micro LED splicing screen, comprising: Obtain dark-state images and bright-state images of the Micro LED spliced ​​screen to be tested, taken by a testing device. The testing device is a device that detects the brightness and / or chromaticity of the Micro LED display to be tested. The dark-state images and bright-state images are images of the Micro LED spliced ​​screen to be tested in the off and on states, respectively; determining position information of the seam area based on the dark state image; Based on one or more of the dark state image, the bright state image and the position information of the splicing seam area, the splicing seam data of the Micro LED splicing screen to be tested is determined.

[0007] In some embodiments, determining the position information of the seam region based on the dark state image includes: The dark image is gray-scaled and the position information of the stitching seam area is determined based on the gray-scale image.

[0008] In some embodiments, the splicing seam data includes the brightness difference at the splicing position. Determining the splicing seam data of the Micro LED splicing screen to be tested includes: Determine a first brightness value of the seam area and a second brightness value of the display screen area in the bright state image; A brightness difference at the splicing position is determined based on the first brightness value and the second brightness value.

[0009] In some embodiments, the splicing seam data includes color difference at the splicing position. Determining the splicing seam data of the Micro LED splicing screen to be tested includes: Determining a first chromaticity value of a seam region and a second chromaticity value of a display screen region in a bright state image; A color difference of the splicing position is determined based on the first chromaticity value and the second chromaticity value.

[0010] In some embodiments, the seam data includes the width of the seam. Determining the seam data of the Micro LED splicing screen to be tested includes: Determine the distance between the lamp beads at the edge of the seam area in the bright state image and / or the dark state image along the direction perpendicular to the seam; The width of the joint is determined based on the distance between the lamp beads.

[0011] In some embodiments, the method further comprises: Based on the acquired seam data and predefined seam grade judgment rules, the seam grade of the Micro LED splicing screen to be tested is judged.

[0012] In some embodiments, the detection device is an area array colorimeter.

[0013] In a second aspect, an embodiment of the present application further provides a device for determining splicing seam data of a Micro LED splicing screen, comprising: An acquisition module is configured to acquire a dark-state image and a bright-state image of the Micro LED spliced ​​screen to be tested, taken by a detection device. The detection device is a device that detects the brightness and / or chromaticity of the Micro LED display to be tested. The dark-state image and the bright-state image are images of the Micro LED spliced ​​screen to be tested in the off and on states, respectively. A first determination module is configured to determine position information of a splicing seam area of ​​the Micro LED splicing screen to be tested based on the dark state image; The second determination module is used to determine the splicing seam data of the Micro LED splicing screen to be tested based on the bright state image and the position information of the splicing seam area.

[0014] In a third aspect, an embodiment of the present application further provides an electronic device, comprising: at least one memory for storing programs; and at least one processor for executing the programs stored in the memory. When the program stored in the memory is executed, the processor is used to execute the method described in the first aspect or any possible implementation of the first aspect.

[0015] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, which stores a computer program. When the computer program runs on a processor, the processor executes the method described in the first aspect or any possible implementation of the first aspect.

[0016] In a fifth aspect, an embodiment of the present application further provides a computer program product, which, when running on a processor, enables the processor to execute the method described in the first aspect or any possible implementation of the first aspect.

[0017] The embodiment of the present application provides a method and device for determining the splicing seam data of a Micro LED splicing screen. A detection device obtains a dark-state image and a bright-state image of the Micro LED splicing screen to be tested, uses the dark-state image to locate the splicing seam area of ​​the Micro LED splicing screen to be tested, and then uses the bright-state image to detect the splicing seam data of the splicing seam area. This realizes the automated acquisition and quantitative presentation of the splicing seam data of the Micro LED splicing screen, improves the detection efficiency, and ensures the consistency and stability of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in this application or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 1 is a flow chart of a method for determining splicing seam data of a Micro LED splicing screen provided in an embodiment of the present application; Figure 2 This is a schematic diagram of an image of a Micro LED spliced ​​screen to be tested provided by the present application; Figure 3 1 is a schematic structural diagram of a device for determining splicing seam data of a Micro LED splicing screen provided in an embodiment of the present application; Figure 4 It is a structural diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0021] Figure 1 FIG. 1 is a flow chart of a method for determining the splicing seam data of a Micro LED splicing screen provided in an embodiment of the present application. Figure 1 As shown, the method includes at least the following steps: S101. Obtain dark-state images and bright-state images of the Micro LED spliced ​​screen to be tested, taken by a testing device.

[0022] Specifically, the Micro LED spliced ​​screen under test is composed of multiple Micro LED display panels. Testing equipment, such as industrial cameras, luminance meters, and colorimeters, measures the brightness and / or color of the Micro LED spliced ​​screen under test. By simulating the human eye's color perception, the testing equipment can measure parameters such as brightness, chromaticity, color temperature, and color difference of the Micro LED spliced ​​screen under test.

[0023] Dark-state images and bright-state images refer to images taken with the same lighting and other shooting conditions, but with the Micro LED video wall under test turned off and on, respectively. For example, under natural light conditions, if the Micro LED video wall under test is turned off, a dark-state image is obtained; if the Micro LED video wall under test is turned on, a bright-state image is obtained.

[0024] Use the testing equipment to obtain dark and bright images of the Micro LED spliced ​​screen under test. Optionally, use an area array colorimeter to obtain dark and bright images of the Micro LED spliced ​​screen under test. An area array colorimeter can accurately extract sub-pixel brightness and chromaticity, achieving absolute brightness and chromaticity measurement.

[0025] S102: Determine position information of the seam area based on the dark state image.

[0026] Specifically, for dark-state images, since the Micro LED splicing screen under test is turned off, light can pass through the splicing seam area, resulting in a significant difference in pixels between the splicing seam area and the display screen area. This allows the splicing seam area and the display screen area in the dark-state image to be distinguished and the location information of the splicing seam area to be determined. The location information of the splicing seam area includes the coordinates and range of the splicing seam area.

[0027] The splicing seam area refers to the entire or partial area of ​​the gap area at the splicing position of two Micro LED splicing screens, and the display area refers to the area of ​​the normal Micro LED splicing screen except the splicing seam area.

[0028] S103: Determine the splicing seam data of the Micro LED splicing screen to be tested based on one or more of the dark state image, the bright state image, and the position information of the splicing seam area.

[0029] Specifically, the width of the seam can be determined by using the pixel information of the dark state image or the bright state image, or the pixel information of the seam area, or the combination of the position information of the image and the seam area; and the brightness difference / color difference at the seam position, the width of the seam, etc. can be determined by using the position information of the bright state image and the seam area.

[0030] The method for determining the splicing seam data of the Micro LED splicing screen provided in the embodiment of the present application obtains a dark state image and a bright state image of the Micro LED splicing screen to be tested through a detection device, uses the dark state image to locate the splicing seam area of ​​the Micro LED splicing screen to be tested, and then uses the bright state image to detect the splicing seam data of the splicing seam area, thereby realizing the automated acquisition and quantitative presentation of the splicing seam data of the Micro LED splicing screen, improving the detection efficiency while ensuring the consistency and stability of the detection.

[0031] In some embodiments, S102 specifically includes: The dark image is gray-scaled and the position information of the stitching seam area is determined based on the gray-scale image.

[0032] Specifically, the brightness / grayscale values ​​of pixels in a grayscale image are unique, typically ranging from 0 to 255, where 0 represents black and 255 represents white. Different values ​​represent varying shades of gray. Compared to directly determining the location of seam areas using color images, grayscale images simplify image analysis while preserving important image features (including edges and shapes), resulting in greater efficiency and reduced data processing.

[0033] When the Micro LED splicing screen to be tested is turned off, the pixel values ​​of the display area and the splicing seam area are clearly distinguished. Therefore, the position information of the splicing seam area can be directly determined using the color image / grayscale image.

[0034] In some embodiments, the stitching seam data includes brightness differences at the stitching positions, and S103 specifically includes: Determine a first brightness value of the seam area and a second brightness value of the display screen area in the bright state image; A brightness difference at the splicing position is determined based on the first brightness value and the second brightness value.

[0035] Specifically, the brightness difference and chromaticity difference at the splicing position should mainly consider the state of the Micro LED splicing screen being turned on. Therefore, after locating the position information of the splicing seam area through the dark state image, the first brightness value of the splicing seam area in the bright state image is detected, and the second brightness value of the display area is detected to obtain the brightness difference at the splicing position.

[0036] Figure 2 This is a schematic diagram of the image of the Micro LED splicing screen to be tested provided by the implementation of this application, such as Figure 2 As shown, two Micro LED splicing screens are spliced ​​together. Near the splicing position, the red regular rectangular box is the region of interest (ROI) near the splicing position. The red irregular area within the ROI is the splicing seam area. The area outside the splicing seam area is the display area. The blue arrow points in the vertical direction along the splicing seam.

[0037] Optionally, the first brightness value is an average brightness value of the joint seam area, and the second brightness value is an average brightness value of the display screen area.

[0038] Optionally, the first brightness value is the brightness extreme value of the splicing seam area, and the second brightness value is the brightness extreme value of the display screen area. The extreme value may be a maximum value or a minimum value.

[0039] Optionally, the first brightness value is the brightness value of the centroid of the joint seam area, and the second brightness value is the average brightness value of the display screen area (it may also be the brightness value of the centroid).

[0040] In some embodiments, the stitching seam data includes color difference at the stitching position, and S103 specifically includes: Determining a first chromaticity value of a seam region and a second chromaticity value of a display screen region in a bright state image; A color difference of the splicing position is determined based on the first chromaticity value and the second chromaticity value.

[0041] Specifically, after locating the position information of the splicing seam area through the dark state image, the first chromaticity value of the splicing seam area in the bright state image is detected, and the second chromaticity value of the display screen area is detected, thereby obtaining the color difference of the splicing position.

[0042] Optionally, the first chromaticity value is an average chromaticity value of the joint seam area, and the second chromaticity value is an average chromaticity value of the display screen area.

[0043] Optionally, the first chromaticity value is the chromaticity extreme value of the splicing seam area, and the second chromaticity value is the chromaticity extreme value of the display screen area. The extreme value may be a maximum value or a minimum value.

[0044] Optionally, the first brightness value is the chromaticity value of the centroid of the joint seam area, and the second chromaticity value is the chromaticity average value of the display screen area (it may also be the brightness value of the centroid).

[0045] In some embodiments, the seam data includes the width of the seam, and S103 specifically includes: Determine the distance between the lamp beads at the edge of the seam area in the bright state image and / or the dark state image along the direction perpendicular to the seam; The width of the joint is determined based on the distance between the lamp beads.

[0046] Specifically, for two adjacent Micro LED display panels, the width of the joint can be measured by the spacing between the edge lamp beads / pixels at the joint position of the two Micro LED display panels.

[0047] Pixel pitch, also known as lamp bead pitch, refers to the distance between adjacent pixels / lamp beads. The smaller the lamp bead pitch, the higher the lamp bead density, which means higher resolution. The size of a single pixel / lamp bead in a Micro LED splicing screen is fixed, which determines the width of each pixel in the physical space.

[0048] Theoretically, the pixel / lamp pitch is fixed, but due to limitations in the manufacturing process, a certain range of error is permitted. The maximum error corresponds to the pixel / lamp pitch threshold. Near the joints of the MicroLED video wall under test, the pixel / lamp pitch may exceed this threshold, and resolution may also decrease.

[0049] Therefore, the width of the seam can be determined by the distance between the lamp beads at the edge of the seam area in the direction perpendicular to the seam in the bright state image and / or the dark state image.

[0050] For example, for any two Micro LED display panels, the maximum distance between the LEDs in the joint area along the vertical direction of the joint is used as the joint width. If the joint width is determined using both bright-state and dark-state images, the average value can be used.

[0051] In some embodiments, the method for determining display screen seam data further includes: Based on the acquired seam data and predefined seam grade judgment rules, the seam grade of the Micro LED splicing screen to be tested is judged.

[0052] Specifically, after obtaining the seam data of the Micro LED splicing screen to be tested, it can be used to determine the seam grade based on predefined seam grade determination rules and the obtained seam data. For example, it can determine whether the seam is qualified and further classify qualified seams.

[0053] Figure 3 : is a structural diagram of a device for determining the splicing seam data of a Micro LED splicing screen provided in an embodiment of the present application, such as Figure 3 As shown, the device at least includes: An acquisition module 301 is configured to acquire a dark-state image and a bright-state image of the Micro LED spliced ​​screen under test, taken by a detection device. The detection device is a device that detects the brightness and / or chromaticity of the Micro LED display under test. The dark-state image and the bright-state image are images of the Micro LED spliced ​​screen under test in the off and on states, respectively. A first determining module 302 is configured to determine position information of a seam region based on a dark image; The second determining module 303 is configured to determine the splicing seam data of the Micro LED splicing screen to be tested based on one or more of the dark state image, the bright state image, and the position information of the splicing seam area.

[0054] In some embodiments, determining the position information of the seam region based on the dark state image includes: The dark image is gray-scaled and the position information of the stitching seam area is determined based on the gray-scale image.

[0055] In some embodiments, the splicing seam data includes the brightness difference at the splicing position. Determining the splicing seam data of the Micro LED splicing screen to be tested includes: Determine a first brightness value of the seam area and a second brightness value of the display screen area in the bright state image; A brightness difference at the splicing position is determined based on the first brightness value and the second brightness value.

[0056] In some embodiments, the splicing seam data includes color difference at the splicing position. Determining the splicing seam data of the Micro LED splicing screen to be tested includes: Determining a first chromaticity value of a seam region and a second chromaticity value of a display screen region in a bright state image; A color difference of the splicing position is determined based on the first chromaticity value and the second chromaticity value.

[0057] In some embodiments, the seam data includes the width of the seam. Determining the seam data of the Micro LED splicing screen to be tested includes: Determine the distance between the lamp beads at the edge of the seam area in the bright state image and / or the dark state image along the direction perpendicular to the seam; The width of the joint is determined based on the distance between the lamp beads.

[0058] In some embodiments, the apparatus further comprises: The judgment module is used to judge the grade of the splicing seam of the Micro LED splicing screen to be tested based on the acquired splicing seam data and predefined splicing seam grade judgment rules.

[0059] In some embodiments, the detection device is an area array colorimeter.

[0060] It is understood that the detailed functional implementation of each of the above-mentioned units / modules can be found in the description of the aforementioned method embodiment and will not be described in detail here. It should be understood that the above-mentioned device is used to execute the method in the above-mentioned embodiment, and the corresponding program modules in the device have similar implementation principles and technical effects as those described in the above-mentioned method. The working process of the device can refer to the corresponding process in the above-mentioned method and will not be described in detail here.

[0061] Based on the methods described in the above embodiments, embodiments of the present application provide an electronic device. The device may include: at least one memory for storing programs and at least one processor for executing the programs stored in the memory. When the programs stored in the memory are executed, the processor is configured to execute the methods described in the above embodiments.

[0062] Figure 4 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application, such as Figure 4 As shown, the electronic device may include: a processor 401, a communications interface 420, a memory 403, and a communication bus 404. The processor 401, the communications interface 402, and the memory 403 communicate with each other via the communication bus 404. The processor 401 may call software instructions in the memory 403 to execute the methods described in the above embodiments.

[0063] In addition, the logic instructions in the aforementioned memory 403 can be implemented in the form of a software functional unit and, when sold or used as an independent product, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the portion that contributes to the relevant technology, or the portion of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application.

[0064] Based on the method in the above embodiment, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program. When the computer program runs on a processor, the processor executes the method in the above embodiment.

[0065] Based on the method in the above embodiment, an embodiment of the present application provides a computer program product. When the computer program product runs on a processor, the processor executes the method in the above embodiment.

[0066] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0067] The method steps in the embodiments of the present application can be implemented by hardware or by a processor executing software instructions. The software instructions can be composed of corresponding software modules, which can be stored in random access memory (RAM), flash memory, read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), registers, hard disks, removable hard disks, CD-ROMs, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and storage medium can be located in an ASIC.

[0068] In the above embodiments, all or part of the embodiments may be implemented using software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product comprises one or more computer instructions. When loaded and executed on a computer, the computer program instructions fully or partially produce the processes or functions described in the embodiments of this application. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted via the computer-readable storage medium. The computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium accessible by a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium may be magnetic media (e.g., floppy disk, hard disk, tape), optical media (e.g., DVD), or semiconductor media (e.g., solid-state drive (SSD)).

[0069] It will be understood that the various numerical numbers involved in the embodiments of the present application are merely distinctions for the convenience of description and are not intended to limit the scope of the embodiments of the present application.

[0070] It is easy for those skilled in the art to understand that the above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A method for determining the splicing seam data of a Micro LED splicing screen, characterized in that: include: Obtain a dark state image and a bright state image of the Micro LED spliced ​​screen to be tested, taken by a detection device. The detection device is a device for detecting the brightness and / or chromaticity of the Micro LED display to be tested. The dark state image and the bright state image are images of the Micro LED spliced ​​screen to be tested in the off state and the on state, respectively; determining position information of a seam region based on the dark state image; Based on one or more of the dark state image, the bright state image and the position information of the splicing seam area, the splicing seam data of the Micro LED splicing screen to be tested is determined.

2. The method for determining seam data according to claim 1, wherein: The determining the position information of the seam area based on the dark state image includes: Grayscale processing is performed on the dark state image, and position information of the splicing seam area is determined based on the grayscale image.

3. The method for determining seam data according to claim 1, wherein: The splicing seam data includes a brightness difference at a splicing position, and determining the splicing seam data of the Micro LED splicing screen to be tested includes: Determining a first brightness value of the seam area and a second brightness value of the display screen area in the bright state image; A brightness difference at the splicing position is determined based on the first brightness value and the second brightness value.

4. The method for determining seam data according to claim 1, wherein: The splicing seam data includes color difference at the splicing position, and determining the splicing seam data of the Micro LED splicing screen to be tested includes: Determining a first chromaticity value of the seam area and a second chromaticity value of the display screen area in the bright state image; A color difference of the splicing position is determined based on the first chromaticity value and the second chromaticity value.

5. The method for determining seam data according to claim 1, wherein: The splicing seam data includes a width of the splicing seam, and determining the splicing seam data of the Micro LED splicing screen to be tested includes: Determining the distance between the lamp beads at the edge of the seam area in the bright state image and / or the dark state image along a direction perpendicular to the seam; The width of the joint is determined based on the distance between the lamp beads.

6. The method for determining seam data according to any one of claims 1 to 5, characterized in that: The method further comprises: Based on the acquired splicing seam data and predefined splicing seam grade determination rules, a grade determination is performed on the splicing seam of the Micro LED splicing screen to be tested.

7. The method for determining seam data according to any one of claims 1 to 5, characterized in that: The detection device is an area array colorimeter.

8. A device for determining the splicing seam data of a Micro LED splicing screen, characterized in that: include: an acquisition module, configured to acquire a dark-state image and a bright-state image of the Micro LED spliced ​​screen to be tested, taken by a detection device. The detection device is a device for detecting the brightness and / or chromaticity of the Micro LED display to be tested. The dark-state image and the bright-state image are images of the Micro LED spliced ​​screen to be tested in the off state and the on state, respectively; A first determining module is configured to determine position information of a splicing seam area of ​​the Micro LED splicing screen to be tested based on the dark state image; The second determining module is configured to determine the splicing seam data of the Micro LED splicing screen to be tested based on the bright state image and the position information of the splicing seam area.

9. An electronic device / image signal generator / network device / transmitter / terminal / base station / industrial computer, characterized in that: include: at least one memory for storing a computer program; At least one processor is used to execute the program stored in the memory. When the program stored in the memory is executed, the processor is used to execute the method according to any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed on a processor, the processor is caused to execute the method according to any one of claims 1 to 7.

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