Traffic light detection method and device based on video

Abstract

The invention discloses a video-based traffic signal lamp detection method and device, belonging to the technical field of intelligent transportation. The detection method includes: obtaining the color characteristic attribute of the sampling pixel in the video image; mapping the color characteristic attribute of the sampling pixel to a high-dimensional space through a pre-trained recognition model, and performing a dot product operation with the support vectors of various color categories The recognition model is obtained by training sample data of various colors of traffic lights under different lighting conditions; according to the result of the dot product operation, the color of the traffic lights corresponding to the sampling pixels is detected. The present invention recognizes the color of the traffic signal light through the real-time video image, realizes the real separation of the intelligent traffic monitoring system and the traffic signal light; the method can adapt to the influence of various factors on the color of the traffic signal light in the real environment, and ensures the accuracy of the recognition result .

Description

technical field [0001] The invention relates to the technical field of intelligent transportation, and more specifically, to a method and device for detecting traffic signal lights based on video. Background technique [0002] With the development of society and economy, cars play an indispensable role in people's daily life. However, the increasing number of cars also brings great challenges to urban traffic management, especially in first-tier cities. Intelligent transportation has become an important means of urban traffic management, among which the electronic police system has become the main way to realize urban road violation detection and traffic flow statistics. Traffic lights, as one of the input signals of the electronic police system, have become an important basis for traffic law enforcement management. [0003] At present, the existing traffic signal light detection methods can be divided into the following types: one is the traditional communication between t...

AI Technical Summary

Problems solved by technology

The adjustment of the brightness and chromaticity of the traffic signal light area by the system through video is largely a threshold judgment based on experience, which cannot cover the color change of the traffic signal light under various lighting conditions, so in some special environments Semaphore detection in

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