White balance synchronization method and system, electronic equipment, medium and digital imaging equipment

A technology of synchronization system and white balance, applied in the field of image processing

Active Publication Date: 2020-08-11
SPREADTRUM SEMICON (NANJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the above-mentioned prior art, the present invention provides a white balance synchronization method, system, electronic equipment, media and digital imaging equipment, so as to realize white balance synchronization between different cameras, reduce the workload of early stage debugging, and reduce calculation Complexity, and suitable for the situation where different cameras capture the same scene at the same time

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  • White balance synchronization method and system, electronic equipment, medium and digital imaging equipment
  • White balance synchronization method and system, electronic equipment, medium and digital imaging equipment
  • White balance synchronization method and system, electronic equipment, medium and digital imaging equipment

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Experimental program
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Embodiment 1

[0085] This embodiment provides a white balance synchronization method, such as figure 1 shown, including the following steps:

[0086] S1. Obtain the pixel ratio and pixel position mapping relationship of the key camera and the synchronous camera.

[0087] In this embodiment, the key camera and the synchronous camera may be different cameras arranged on the same side of the same shooting terminal. Wherein, the shooting terminal may be a mobile phone, a tablet computer, a video camera, a camera, a notebook computer and other devices. The key camera and the synchronous camera are set adjacent to each other on the shooting terminal, and the light source information corresponding to the two should be the same at the same time. It can be understood that multiple cameras can be installed on the same side of the shooting terminal, and one of the cameras with a moderate focal length and no obvious distortion is selected as the key camera, and the other cameras are used for synchron...

Embodiment 2

[0128] This embodiment provides a white balance synchronization system, such as Figure 6 As shown, the system 10 includes:

[0129] A priori module 11, used to obtain the pixel ratio and pixel position mapping relationship of the key camera and the synchronous camera;

[0130] The target image acquisition module 12 is used to acquire the key target image collected by the key camera and the synchronous target image collected by the synchronous camera, the key target image and the synchronous target image are images collected simultaneously for the same shooting target;

[0131] White balance processing module 13, carries out white balance processing to key object image;

[0132] Target region extraction module 14, for extracting the target region of interest from the key target image;

[0133] Mapping area extraction module 15, for obtaining the target mapping area corresponding to the position of the target region of interest from the synchronous target image according to the...

Embodiment 3

[0162] This embodiment provides an electronic device, which can be expressed in the form of a computing device (for example, it can be a server device), including a memory, a processor, and a computer program stored on the memory and operable on the processor, wherein the processor The white balance synchronization method provided in Embodiment 1 can be realized when the computer program is executed.

[0163] Figure 7 A schematic diagram of the hardware structure of this embodiment is shown, as Figure 7 As shown, the electronic device 9 specifically includes:

[0164] At least one processor 91, at least one memory 92, and a bus 93 for connecting different system components, including the processor 91 and the memory 92, wherein:

[0165] The bus 93 includes a data bus, an address bus, and a control bus.

[0166] The memory 92 includes a volatile memory, such as a random access memory (RAM) 921 and / or a cache memory 922 , and may further include a read only memory (ROM) 923...

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Abstract

The invention provides a white balance synchronization method and system, electronic equipment, a medium and digital imaging equipment. The method comprises the following steps: obtaining a pixel proportion and a pixel position mapping relationship between a key camera and a synchronous camera; acquiring a key target image acquired by a key camera and a synchronous target image acquired by a synchronous camera; performing white balance processing on the key target image; extracting a target region of interest from the key target image; according to the pixel proportion and the pixel position mapping relationship, obtaining a target mapping region corresponding to the target region-of-interest position from a synchronous target image; and performing white balance adjustment on the synchronous target image according to the average value of the color components in the target region of interest and the average value of the color components in the target mapping region. White balance synchronization between different cameras is realized, the early debugging workload is reduced, the calculation complexity is reduced, and the method is suitable for different cameras to acquire the same scene at the same time.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a white balance synchronization method, system, electronic equipment, medium and digital imaging equipment. Background technique [0002] Due to the different spectral characteristics of different light sources, under the illumination of different color temperatures, the hues of objects are different. The higher the color temperature, the bluer the object, and the lower the color temperature, the more yellowish it is. The reflection of the three primary color channels of red, green, and blue in a white scene is the same, that is, the values ​​of the three channels of red, green, and blue in the true color of a white scene are equal, so the color cast caused by light sources with different color temperatures can be corrected by using white as a benchmark. There are various automatic white balance (AWB) algorithms in the prior art, such as a grayscale world method, a white...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/73H04N5/04
CPCH04N5/04H04N23/88
Inventor 郭逸汀熊佳彭晓峰
Owner SPREADTRUM SEMICON (NANJING) CO LTD
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