A method and device for detecting traffic lights based on video

Abstract

The invention discloses a video-based method and device for detecting traffic lights. The method comprises the steps of converting an acquired image into an HSV (Hue, Saturation, Value) data format to obtain the chromaticity, saturation and luminance information of pixels of the image, binarizing the image on the basis of the luminance information, and determining the suspected light area in the image; according to the chromaticity value of pixels in the image, determining the corresponding color classification; then determining the color character values of the pixels; according to the color character values of the pixels, determining the area color character values of the traffic lights respectively; then, judging the primary states of the traffic lights, and establishing the respective on-and-off state sample library of the traffic lights and corresponding Gaussian models; finally, judging the states of the traffic lights. The invention further discloses a device for realizing the method. The method and device disclosed by the invention have low requirements for the quality of the image, and can well adapt to complicated scenes.

Description

technical field [0001] The invention belongs to the technical field of video monitoring, in particular to a method and device for detecting traffic signal lights based on video. Background technique [0002] As cars gradually enter common people's families, road traffic conditions are increasingly congested, and it is particularly important to obey traffic rules. In order to effectively manage traffic order, installing electronic police at intersections to monitor whether vehicles obey traffic lights has become a common traffic management method and has been widely used in various cities. [0003] There are two main methods for the current electronic police equipment to judge traffic lights, one is the method of connecting the signal line of the traffic lights through the I / O interface, and the other is the method of pure video detection. The former relies on the signal line as the identification input, the advantage is high accuracy, the identification index does not depen...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to propose a method and device for detecting traffic lights based on video to solve the technical problems of the prior art that the state detection effect of traffic lights is not ideal and it is easy to misjudgment in complex scenes

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