Method and system for processing signal light images

Abstract

The invention discloses a signal light image processing method and system. The method and system obtain at least one frame of low-exposure image and at least one frame of normal exposure image; color correction to obtain a corrected low-exposure image; fusing the corrected low-exposure image with the normal exposure image to generate a fusion image. The present invention generates a fusion image by fusion with a normal exposure image, so that the overall brightness of the fusion image does not change; when performing color correction, only the region of interest is corrected, the amount of calculation is greatly reduced, and only the region of interest is corrected. The reddish pixel area, the image processing can be accurate to the pixel level.

Description

Technical field [0001] The present invention belongs to the field of computer image processing, and the field of video surveillance, and in particular, the processing method and system of a signal light image. Background technique [0002] As the urban motor vehicle is increasing, transportation management departments will install traffic light systems in the city's traffic intersection to indicate motor vehicles, non-motor vehicles and pedestrians to engage in traffic. In order to ensure that the motor vehicle instructs to drive, monitor the violation of the intersection, the traffic management department will also add video surveillance systems in these intersections to record the violation of the vehicle pedestrians, and as evidence of law enforcement units. [0003] In the prior art, in the process of using the video surveillance system, the red traffic light in the video image often has distortion. If the environment is low in the environment, the camera has a long exposure,...

AI Technical Summary

Problems solved by technology

[0005] The patent document "A method for correcting the discoloration and enlargement of red lights in pictures of vehicles running red lights at night", the publication number is 102663892A, this method can only deal with the problem of abnormal red lights caused by overexposure at night, and cannot deal with the problem of yellowish red lights. This method cannot be adaptive to multiple scenes, and its correction error rate is extremely high

[0006] The patent document "A Signal Light Image Processing Method and Its Device" has a publication number of 103679733A. This method has a large amount of calculation, low scene adaptability, and is easy to locate errors and cause correction failure. The error rate of this method is also high, and the indirect Bring troubles to the effective and fast law enforcement of law enforcement units

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