Fusion circuit board noise suppression ability test system
A technology for noise suppression and ability testing, which is applied to the components of TV systems, TVs, electrical components, etc. It can solve the problems of rough subjectivity of results, poor fusion circuit suppression ability, and few fusion circuit boards, etc., to achieve the degree of regulation High, small amount of calculation, highly targeted effect
Active Publication Date: 2020-04-07
NANJING UNIV OF SCI & TECH
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Problems solved by technology
[0004] At present, there are few evaluation methods for the imaging quality of fusion circuit boards, and there is no good way to detect the ability of fusion circuits to suppress noise. Usually, the method of visual recognition and observation is used, and the results are rough and highly subjective. Therefore, there is an urgent need for a complete test system to accurately test the ability of the fusion circuit board to suppress noise
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[0019] The method of the invention is easy to operate, the test result is accurate, and the calculation complexity is low. The test steps are as follows:
[0020] Use a video signal generator to generate infrared and low-light standard images for testing;
[0021] Use a noise signal generator to generate various desired noises;
[0022] Add one or more noises to the standard image by weighting;
[0023] Transmit the noise-containing standard image to the fusion circuit module and the host computer module;
[0024] The fusion circuit module performs a fusion operation on the received two-way noise-containing infrared and low-light standard images to generate a fusion image, which is input to the host computer management module (6);
[0025] The upper computer module calculates the signal-to-noise ratio value of the single-channel image before fusion, and the overall signal-to-noise ratio of the image after fusion, and compares and analyzes them;
[0026] Replace the image f...
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The invention discloses a fusion circuit board noise suppression ability test system, which can carry out noise test on the fusion circuit board, so as to obtain the change of the signal-to-noise ratio of the video signal before and after the fusion circuit board; the system is composed of six parts: a standard image generation module , noise generation module, image noise superposition module, fusion circuit board module, high-definition video acquisition card module and host computer management module; A signal-to-noise ratio test mode; by simulating the fusion scene in the actual situation, the noise suppression ability of the fusion circuit board can be objectively and effectively evaluated, and the noise suppression characteristics of different fusion algorithms can be obtained. The performance is stable, the test result is reliable, and the calculation amount is small, so it is easy to implement.
Description
technical field [0001] The invention relates to the field of video noise testing, in particular to a system capable of testing the ability of a fusion imaging system to suppress the fusion video image noise. Background technique [0002] Image fusion is to effectively use the characteristic information of the image to synthesize the image information obtained by different sensors in the same scene, so as to facilitate the user's target detection, recognition and situation awareness. In image fusion, the source image usually contains a certain amount of different types of noise. [0003] The purpose of image fusion is to increase the information of the original scene through the fusion of different band information. During this process, image processing can suppress noise to a certain extent. [0004] At present, there are few evaluation methods for the imaging quality of fusion circuit boards, and there is no good way to detect the ability of fusion circuits to suppress no...
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IPC IPC(8): H04N5/213H04N5/217H04N17/00
CPCH04N5/213H04N17/004H04N25/60
Inventor 张俊举何叶何士浩季天慈钱芸生张弦子高原吴健顾治峰
Owner NANJING UNIV OF SCI & TECH