Correction coefficient acquisition method, electronic equipment, storage medium and product

Abstract

The invention provides a correction coefficient acquisition method, electronic equipment, a storage medium and a product. The method comprises the steps of collecting current bright color information of LED lamp beads in a target screen; obtaining target bright color information corresponding to the target screen, and obtaining an initial correction coefficient corresponding to the LED lamp bead according to the target bright color information and the current bright color information; a lamp set corresponding to each LED lamp bead is obtained, target correction coefficients of the lamp sets are determined according to the initial correction coefficients and the number of the LED lamp beads in the lamp sets, and part of the target correction coefficients of the LED lamp beads in the lamp sets are the same. According to the invention, the target correction coefficient can be obtained in the form of the lamp group, so that the number of the correction coefficients can be effectively reduced under the condition that the uniformity of the screen is not changed, the load of the receiving card is improved, the requirement of fine display is met, and the size and cost of the LED screen are effectively controlled.

Description

Technical Field

[0001] The present application relates to the field of LED display technology. Specifically, the present application relates to a correction coefficient acquisition method, electronic equipment, storage medium and product. Background Art

[0002] In recent years, with the rapid development of the LED screen manufacturing industry, LED screens can be seen almost everywhere in all city squares and commercial centers. In order to obtain better visual viewing effects, users have also put forward higher requirements for the uniformity and consistency of the brightness and color of LED screens. This also forces the LED screens to be calibrated point by point before leaving the factory and after on-site assembly to adjust the color displayed by the LED lamp beads. The point-by-point calibration process will upload the correction coefficients of all the lamp beads to the screen receiving card in a point-to-point manner to improve the uniformity and consistency of the brightness and color. At the same time, the correction coefficients will be saved in the database for future use.

[0003] However, with the development of technology, the screen spacing of LED screens is constantly decreasing, which makes the display effect continue to improve. However, as the screen spacing decreases, the correction coefficients that the receiving card needs to store and use are increasing. Therefore, in order to ensure the uniformity of the screen, the receiving card needs to carry more and more loads, which makes it difficult to effectively control the size and cost of the LED screen and meet the needs of fine display. Summary of the invention

[0004] In view of the shortcomings of the existing methods, the present application proposes a correction coefficient acquisition method, electronic device, storage medium and product, which can solve the problems that the existing receiving card has a large load and it is difficult to effectively control the size and cost of the LED screen and meet the needs of fine display.

[0005] According to one aspect of an embodiment of the present application, an embodiment of the present application provides a method for obtaining a correction coefficient, the method comprising:

[0006] Collect the current brightness information of the LED lamp beads on the target screen;

[0007] Obtain target brightness information corresponding to the target screen, and obtain an initial correction coefficient corresponding to the LED lamp bead according to the target brightness information and the current brightness information;

[0008] A lamp group corresponding to each of the LED lamp beads is obtained, and a target correction coefficient of the lamp group is determined according to the initial correction coefficient and the number of LED lamp beads in the lamp group, and some target correction coefficients of the LED lamp beads in the lamp group are the same.

[0009] In a possible implementation, the collecting current brightness information of LED lamp beads in the target screen includes:

[0010] The current brightness information of each LED lamp bead is collected pixel by pixel using an area array industrial camera, wherein the current brightness information includes the tristimulus values ​​of the LED lamp bead.

[0011] In a possible implementation, the target brightness information includes a target stimulus value, and acquiring the target brightness information corresponding to the target screen includes:

[0012] A target color gamut and a corrected brightness loss of the target screen are acquired, and the target stimulus value is calculated based on the target color gamut and the corrected brightness loss.

[0013] In a possible implementation manner, the target color gamut is represented based on tristimulus values, and the target stimulus value=the target color gamut*the corrected brightness loss.

[0014] In a possible implementation, the acquiring the initial correction coefficient corresponding to the LED lamp bead according to the target brightness information and the current brightness information includes:

[0015] pass The initial correction coefficients are calculated, where Rr, Rg, and Rb are the initial correction coefficients corresponding to red, Gr, Gg, and Gb are the initial correction coefficients corresponding to green, Br, Bg, and Bb are the initial correction coefficients corresponding to blue, and RX D RY D , RZ D is the target stimulus value corresponding to red, GX D , GY D , GZ D is the target stimulus value corresponding to green, BX D 、BY D , BZ D is the target stimulus value corresponding to blue, RX D RY D , RZ D is the stimulus value corresponding to red, GX D , GY D , GZ D is the stimulus value corresponding to green, BX D 、BY D , BZ D is the stimulus value corresponding to blue.

[0016] In a possible implementation, determining the target correction coefficient of the lamp group according to the initial correction coefficient and the number of lamp groups includes:

[0017] Obtaining the complementary color coefficient in the initial correction coefficient, and determining the target complementary color coefficient of the lamp group according to the complementary color coefficient and the number of LED lamp beads;

[0018] A target correction coefficient for the lamp group is determined based on the target complementary color coefficient.

[0019] In a possible implementation, determining the lamp group includes:

[0020] Detecting whether the LED lamp bead is of a preset type, wherein the preset type includes a four-in-one LED lamp bead;

[0021] If yes, determine the lamp group according to the packaging information of the LED lamp beads;

[0022] If not, the adjacent information of the LED lamp beads is obtained, and the lamp group is determined according to the preset group number information and the adjacent information.

[0023] According to one aspect of an embodiment of the present application, an embodiment of the present application provides an electronic device, including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of any of the methods described above.

[0024] According to one aspect of an embodiment of the present application, an embodiment of the present application provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed, the steps of the method described above are implemented.

[0025] According to one aspect of an embodiment of the present application, an embodiment of the present application provides a computer program product, including a computer program, and when the computer program is executed, the steps of the method described above are implemented.

[0026] The beneficial technical effects brought about by the technical solution provided by the embodiment of the present application include:

[0027] A correction coefficient acquisition method provided by the present application has the beneficial effect of collecting the current brightness information of each LED lamp bead in the target screen; obtaining the target brightness information corresponding to the target screen, and obtaining the initial correction coefficient corresponding to the LED lamp bead according to the target brightness information and the current brightness information; obtaining the lamp group corresponding to each LED lamp bead, and determining the target correction coefficient of the lamp group according to the initial correction coefficient and the number of LED lamp beads in the lamp group, and some target correction coefficients of the LED lamp beads in the lamp group are the same. The present application obtains the target correction coefficient in the form of a lamp group, which can effectively reduce the number of correction coefficients while maintaining the uniformity of the screen, improve the receiving card load and meet the needs of fine display, thereby effectively controlling the size and cost of the LED screen.

[0028] Additional aspects and advantages of the present application will be partially given in the following description, which will become apparent from the following description, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0030] Figure 1 A flowchart of a method for obtaining a correction coefficient provided in an embodiment of the present application;

[0031] Figure 2 A structural diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] The embodiments of the present application are described below in conjunction with the drawings in the present application. It should be understood that the implementation methods described below in conjunction with the drawings are exemplary descriptions for explaining the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions of the embodiments of the present application.

[0033] It will be understood by those skilled in the art that, unless specifically stated, the "said" and "the" used herein may also include plural forms. It should be further understood that the wording "including" 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 implementation of other features, information, data, steps, operations, elements, components and / or combinations thereof supported by the present technical field. It should be understood that when we say that an element is "connected" or "coupled" to another element, the element may be directly connected or coupled to the other element, or it may refer to the connection relationship between the element and the other element through an intermediate element. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The term "and / or" used herein refers to at least one of the items defined by the term, for example, "A and / or B" may be implemented as "A", or as "B", or as "A and B".

[0034] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0035] An embodiment of the present application provides a method for obtaining a correction coefficient, which can be used in computers, servers, and other terminals that can calculate a target correction coefficient based on the current brightness information of an LED lamp bead.

[0036] Optionally, the target correction coefficient acquisition method can be executed when the target screen leaves the factory. When leaving the factory, the current brightness information of the LED lamp beads in the target screen is collected, and the target correction coefficient is acquired according to the current brightness information, so that the receiving card uses the target correction coefficient to control the light emission of the LED lamp beads, thereby reducing the receiving card load required for the target screen display. The method can also be executed during the use or maintenance of the target screen. During use or maintenance, the target correction coefficient is acquired, and the target correction data is transmitted to the receiving card corresponding to the target screen, so that the receiving card controls the display of the LED lamp beads according to the target correction coefficient to improve the display effect of the target screen.

[0037] Optionally, the LED lamp beads in the target screen can be four-in-one Mini-LED lamp beads, or SMD-packaged LED lamp beads, COB-packaged LED lamp beads, or LED lamp beads using other packaging methods.

[0038] like Figure 1 As shown, the correction coefficient acquisition method of the present application includes:

[0039] S101: Collect the current brightness information of the LED lamp beads in the target screen.

[0040] Optionally, collecting current brightness information of each LED lamp bead in the target screen includes: using an area array industrial camera to collect current brightness information of each LED lamp bead pixel by pixel, where the current brightness information includes tristimulus values ​​of the LED lamp bead.

[0041] Optionally, an array industrial camera can be used to collect the current brightness information of each LED lamp bead in the target screen. Alternatively, a calibration camera equipped with calibration software can be used to collect the current brightness information of the LED lamp bead in the target screen. The calibration camera can be a scientific-grade calibration camera CCM6000, and the calibration software can be Calibration Pro.

[0042] Optionally, when collecting the current brightness information, the current brightness information of the LED lamp beads can be collected one by one in a predetermined order. The order can be from left to right, from top to bottom, etc. The specific order can be determined according to actual needs.

[0043] Optionally, after the equipment for installing the target screen is completed, the current brightness color information of the target screen can be collected. After the equipment is installed, the current brightness color information can be collected regularly to ensure that the target screen can maintain normal color display. The image displayed on the target screen can also be collected in real time and compared with the corresponding standard image. According to the comparison result, it is detected whether there is a color deviation. If the color deviation is greater than a preset threshold, the device for collecting the brightness color information is controlled to collect the current brightness color information of the LED.

[0044] Optionally, when collecting the current brightness information, the LED lamp beads in the target screen can be divided into multiple groups, and the current brightness information of the LED lamp beads can be collected group by group. Each group of LED lamp beads is composed of multiple adjacent LED lights, and the colors displayed by the LED lamp beads in each group include all the basic colors of the target screen.

[0045] Optionally, the LED lamp beads may display red, green, and blue, and each color corresponds to a tristimulus value.

[0046] In one embodiment, the current bright color information of each LED lamp bead is represented by tristimulus values, which may be X, Y, and Z, where X and Z represent chromaticity, and Y represents brightness and chromaticity. The tristimulus values ​​corresponding to red are RX0, RY0, and RZ0, where RX0 is the red stimulus value corresponding to red, RY0 is the green stimulus value corresponding to red, and RZ0 is the blue stimulus value corresponding to red. The tristimulus values ​​for green are GX0, GY0, and GZ0, where GX0 is the red stimulus value corresponding to green, GY0 is the green stimulus value corresponding to green, and GZ0 is the blue stimulus value corresponding to green. The tristimulus values ​​for blue are BX0, BY0, and BZ0, where BX0 is the red stimulus value corresponding to blue, BY0 is the green stimulus value corresponding to blue, and BZ0 is the blue stimulus value corresponding to blue.

[0047] S102: Obtain target brightness information corresponding to the target screen, and obtain an initial correction coefficient corresponding to the LED lamp beads according to the target brightness information and the current brightness information.

[0048] Optionally, the target brightness information includes a target stimulus value, and obtaining the target brightness information corresponding to the target screen includes: obtaining a target color gamut and corrected brightness loss of the target screen, and calculating the target stimulus value based on the target color gamut and the corrected brightness loss.

[0049] Optionally, target stimulation values ​​and corrected brightness losses corresponding to different types of target screens may be pre-stored. After obtaining the three stimulation values ​​of the target screen, the target color gamut and corrected brightness loss corresponding to the target screen may be searched, and the target stimulation value may be calculated based on the target stimulation value and the corrected brightness loss.

[0050] Optionally, correction information input by the correction object may also be obtained, and the target color gamut and / or the brightness loss after correction may be determined according to the correction information.

[0051] In one embodiment, the brightness loss after correction can be 85%, 90% or other values, and the specific size can be determined by the correction information input by the correction object. The target screen can be used to display images of a specific shape or specific brightness, or can be set in an area with uneven light. Accordingly, the brightness loss after correction in different areas of the target screen can be different.

[0052] Optionally, the target color gamut is represented based on tristimulus values, and the target stimulus value = target color gamut * brightness loss after correction. Different colors correspond to different target stimulus values, and the target stimulus values ​​of the target screen are represented in the form of a matrix.

[0053] Optionally, the LED lamp beads of the target screen display images using the three primary colors of red, green and blue, where the target stimulus value corresponding to red can be RX D RY D , RZ D , the target stimulus value corresponding to green can be GX D , GY D , GZ D , the target stimulus value corresponding to blue can be BX D 、BY D , BZ D , RX D is the red target stimulus value corresponding to red, RY D is the green target stimulus value corresponding to red, RZ D is the blue target stimulus value corresponding to red, GX D is the red target stimulus value corresponding to green, GY D is the green target stimulus value corresponding to green, GZ D is the blue target stimulus value corresponding to green, GX D is the red target stimulus value corresponding to blue, GY D is the green target stimulus value corresponding to blue, GZ D is the blue target stimulus value corresponding to blue.

[0054] Optionally, obtaining an initial correction coefficient corresponding to the LED lamp bead according to the target brightness information and the current brightness information includes:

[0055] pass Calculate the initial correction coefficients, where Rr, Rg, and Rb are the initial correction coefficients corresponding to red, Gr, Gg, and Gb are the initial correction coefficients corresponding to green, Br, Bg, and Bb are the initial correction coefficients corresponding to blue, and RX D RY D , RZ D is the target stimulus value corresponding to red, GX D , GY D , GZ D is the target stimulus value corresponding to green, BX D 、BY D , BZ D is the target stimulus value corresponding to blue, RX D RY D , RZ Dis the stimulus value corresponding to red, GX D , GY D , GZ D is the stimulus value corresponding to green, BX D 、BY D , BZ D is the stimulus value corresponding to blue.

[0056] Optionally, Rr is the complementary color value corresponding to red, which is used to correct the brightness of red, Rg and Rb are complementary color coefficients corresponding to red, which are used to calibrate the displayed red color, Rg is the complementary color value of green corresponding to red, and Rb is the complementary color coefficient of blue corresponding to red. Gg is the complementary color value corresponding to green, which is used to correct the brightness of green, Gr and Gb are complementary color coefficients corresponding to green, which are used to calibrate the displayed green color, Gr is the complementary color value of red corresponding to green, and Gb is the complementary color value of blue corresponding to green. Bb is the complementary color value of blue, which is used to calibrate the brightness of red, Br and Bg are complementary color coefficients corresponding to blue, Br is the complementary color value of red corresponding to blue, and Bg is the complementary color value of green corresponding to blue.

[0057] S103: Obtain the lamp group corresponding to each LED lamp bead, and determine the target correction coefficient of the lamp group according to the initial correction coefficient and the number of LED lamp beads in the lamp group.

[0058] Optionally, some target correction coefficients of the LED lamp beads in the lamp group are the same. Specifically, the complementary color coefficients in the correction coefficients are the same.

[0059] Optionally, the LED lamp beads used in the target screen are four-in-one LED lamp beads, each lamp group includes four groups of LED lamp beads, and each group of LEDs includes three LED lamp beads, and the three LED lamp beads display different colors.

[0060] Optionally, each lamp group may also include three groups, five groups, or other numbers of LED lamp beads, and the number of colors displayed by each group of LED lamp beads is consistent with the number of primary colors of the target screen.

[0061] Optionally, determining the light group includes: detecting whether the LED lamp bead is a preset type, the preset type includes a four-in-one LED lamp bead; if so, determining the light group according to the packaging information of the LED lamp bead; wherein the four-in-one LED lamp bead packages four groups of LED lamp beads. If not, obtaining the adjacent information of the LED lamp bead, and determining the light group according to the preset group number information and the adjacent information. The group number information can be three groups, five groups, or other numbers, and each group can include three LED lamp beads that display red, green, and blue colors respectively.

[0062] Optionally, the LED lamp beads in the lamp group are adjacent, and the lamp group corresponding to the LED lamp beads can be determined according to the positional relationship of the LED lamp beads in the target screen.

[0063] Optionally, a target correction coefficient of the light group is determined based on the initial correction coefficient and the number of groups in the light group, including: obtaining the complementary color coefficient in the initial correction coefficient, determining the target complementary color coefficient of the light group based on the complementary color coefficient and the number of LED lamp beads, the light group includes multiple groups of LED lamp beads, and each group includes the same number of LED lamp beads; determining the target correction coefficient of the light group based on the target complementary color coefficient.

[0064] Optionally, for the LED lamp beads corresponding to each color in the lamp group, the average value of the complementary color coefficients can be used as the target complementary color coefficients of these LED lamp beads.

[0065] In one embodiment, the initial correction coefficient has 9 components, namely Rr, Rg, Rb, Gr, Gg, Gb, Br, Bg, Bb; among them, Rr, Gg, Bb are mainly used to calibrate the brightness of LED lamp beads; Rg, Rb, Gr, Gb, Br, Bb are mainly used to calibrate the color of LED lamp beads. The complementary color coefficients of the 4-in-1 LED lamp beads are merged, and the relevant calculation formula can be: Rg'=(Rg1+Rg2+Rg3+Rg4) / 4(Rg1, Rg2, Rg3, Rg4 are the complementary color coefficients corresponding to the 4 LED lamp beads that display red in the 4-in-1 package. Similarly, the target complementary color coefficients Rb', Gr', Gb', Br', Bg' can be obtained. After obtaining the target complementary color coefficient, the complementary color coefficient and the coefficients Rr, Gg, Bb used to calibrate the brightness in the initial correction coefficient are merged, and the merged coefficient is used as the target correction coefficient of the LED lamp beads in the lamp group.

[0066] Optionally, after obtaining the target correction coefficient of the light group, the target correction coefficients corresponding to other light groups in the target screen are obtained one by one, and the target correction coefficients corresponding to all light groups are stored in the receiving card corresponding to the target screen. The receiving card controls the LED lamp beads in the target screen to emit light according to the target correction coefficient. Compared with the method of storing complementary color coefficients for each LED lamp bead separately, the present application can use the same complementary color coefficient for LED lamp beads of the same color in the lamp beads, thereby effectively reducing the carrying capacity of the receiving card.

[0067] The correction coefficient acquisition method of the present application has the following advantages:

[0068] Collect the current brightness information of each LED lamp bead in the target screen; obtain the target brightness information corresponding to the target screen, and obtain the initial correction coefficient corresponding to the LED lamp bead according to the target brightness information and the current brightness information; obtain the lamp group corresponding to each LED lamp bead, and determine the target correction coefficient of the lamp group according to the initial correction coefficient and the number of LED lamp beads in the lamp group, and some target correction coefficients of the LED lamp beads in the lamp group are the same. The present application obtains the target correction coefficient in the form of a lamp group, which can effectively reduce the number of correction coefficients while maintaining the uniformity of the screen, improve the receiving card load and meet the needs of fine display, thereby effectively controlling the size and cost of the LED screen.

[0069] Based on the same inventive concept, the embodiment of the present application provides an electronic device, such as Figure 2 As shown, Figure 2 The electronic device 2000 shown includes: a processor 2001 and a memory 2003. The processor 2001 and the memory 2003 are connected in communication with each other, for example, via a bus 2002.

[0070] Processor 2001 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It may implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of this application. Processor 2001 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0071] The bus 2002 may include a path to transmit information between the above components. The bus 2002 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus. The bus 2002 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0072] The memory 2003 can be a ROM (Read-Only Memory) or other types of static storage devices that can store static information and instructions, a RAM (random access memory) or other types of dynamic storage devices that can store information and instructions, or an EEPROM (Electrically Erasable Programmable Read Only Memory), a CD-ROM (Compact Disc Read-Only Memory) or other optical disk storage, optical disk storage (including compressed optical disk, laser disk, optical disk, digital versatile disk, Blu-ray disk, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited to this.

[0073] Optionally, the electronic device 2000 may further include a communication unit 2004. The communication unit 2004 may be used for receiving and sending signals. The communication unit 2004 may allow the electronic device 2000 to communicate with other devices wirelessly or by wire to exchange data. It should be noted that in actual applications, the communication unit 2004 is not limited to one.

[0074] Optionally, the electronic device 2000 may further include an input unit 2005. The input unit 2005 may be used to receive input digital, character, image and / or sound information, or generate key signal input related to user settings and function control of the electronic device 2000. The input unit 2005 may include, but is not limited to, one or more of a touch screen, a physical keyboard, a function key (such as a volume control key, a switch key, etc.), a trackball, a mouse, a joystick, a camera, a microphone, etc.

[0075] Optionally, the electronic device 2000 may further include an output unit 2006. The output unit 2006 may be used to output or display information processed by the processor 2001. The output unit 2006 may include but is not limited to one or more of a display device, a speaker, a vibration device, and the like.

[0076] Although the electronic device 2000 having various devices is shown in the figure, it should be understood that it is not required to implement or possess all the devices shown. More or fewer devices may be implemented or possessed instead.

[0077] Optionally, the memory 2003 is used to store a computer program for executing the solution of the present application, and the execution is controlled by the processor 2001. The processor 2001 is used to execute the computer program stored in the memory 2003 to implement the steps of any method provided in the embodiments of the present application.

[0078] Based on the same inventive concept, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by an electronic device / processor, it implements the steps of any method provided in the present application / implements the steps of various optional implementation methods of the method provided in the present application.

[0079] Based on the same inventive concept, an embodiment of the present application provides a computer program product, which includes a computer program, which, when executed by an electronic device / processor, implements the steps of any method provided in the present application / implements the steps of various optional implementation methods of the method provided in the present application.

[0080] Those skilled in the art will appreciate that the various operations, methods, steps, measures, and schemes in the processes discussed in this application may be alternated, changed, combined, or deleted. Furthermore, other steps, measures, and schemes in the various operations, methods, and processes discussed in this application may also be alternated, changed, rearranged, decomposed, combined, or deleted. Furthermore, steps, measures, and schemes in the related art that are similar to those disclosed in this application may also be alternated, changed, rearranged, decomposed, combined, or deleted.

[0081] In the description of the present application, the directions or positional relationships indicated by words such as "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the exemplary directions or positional relationships shown in the accompanying drawings. They are for the convenience of describing or simplifying the description of the embodiments of the present application, and do not indicate or imply that the referred device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.

[0082] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0083] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0084] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0085] The above is only a partial implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the technical concept of the scheme of the present application, other similar implementation methods based on the technical ideas of the present application are also within the protection scope of the embodiments of the present application.

Claims

1. A method for obtaining a correction coefficient, characterized in that: The method comprises: Collect the current brightness information of the LED lamp beads on the target screen; Obtain target brightness information corresponding to the target screen, and obtain an initial correction coefficient corresponding to the LED lamp bead according to the target brightness information and the current brightness information; A lamp group corresponding to each of the LED lamp beads is obtained, and a target correction coefficient of the lamp group is determined according to the initial correction coefficient and the number of LED lamp beads in the lamp group, and some target correction coefficients of the LED lamp beads in the lamp group are the same.

2. The correction coefficient acquisition method according to claim 1, characterized in that: The current brightness information of the LED lamp beads in the target screen is collected, including: The current brightness information of each LED lamp bead is collected pixel by pixel using an area array industrial camera, wherein the current brightness information includes the tristimulus values ​​of the LED lamp bead.

3. The correction coefficient acquisition method according to claim 2, characterized in that: The target brightness information includes a target stimulus value, and the step of obtaining the target brightness information corresponding to the target screen includes: A target color gamut and a corrected brightness loss of the target screen are acquired, and the target stimulus value is calculated based on the target color gamut and the corrected brightness loss.

4. The correction coefficient acquisition method according to claim 3, characterized in that: The target color gamut is represented based on tristimulus values, and the target stimulus value=the target color gamut*the corrected brightness loss.

5. The correction coefficient acquisition method according to claim 3, characterized in that: The obtaining the initial correction coefficient corresponding to the LED lamp bead according to the target brightness information and the current brightness information includes: pass The initial correction coefficients are calculated, where Rr, Rg, and Rb are the initial correction coefficients corresponding to red, Gr, Gg, and Gb are the initial correction coefficients corresponding to green, Br, Bg, and Bb are the initial correction coefficients corresponding to blue, and RX D RY D , RZ D is the target stimulus value corresponding to red, GX D , GY D , GZ D is the target stimulus value corresponding to green, BX D 、BY D , BZ D is the target stimulus value corresponding to blue, RX D RY D , RZ D is the stimulus value corresponding to red, GX D , GY D , GZ D is the stimulus value corresponding to green, BX D 、BY D , BZ D is the stimulus value corresponding to blue.

6. The correction coefficient acquisition method according to claim 1, characterized in that: The step of determining the target correction coefficient of the lamp group according to the initial correction coefficient and the number of lamp groups includes: Obtaining the complementary color coefficient in the initial correction coefficient, and determining the target complementary color coefficient of the lamp group according to the complementary color coefficient and the number of LED lamp beads; A target correction coefficient for the lamp group is determined based on the target complementary color coefficient.

7. The correction coefficient acquisition method according to claim 1, characterized in that: The determination of the lamp group includes: Detecting whether the LED lamp bead is of a preset type, wherein the preset type includes a four-in-one LED lamp bead; If yes, determine the lamp group according to the packaging information of the LED lamp beads; If not, the adjacent information of the LED lamp beads is obtained, and the lamp group is determined according to the preset group number information and the adjacent information.

8. An electronic device comprising a memory, a processor and a computer program stored in the memory, characterized in that: The processor executes the computer program to implement the steps of the method according to any one of claims 1-7.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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