Method for detecting intervals between vehicles

Abstract

The invention relates to a method for detecting intervals between vehicles. The method includes the following steps: setting a lane region; acquiring the image of the lane; acquiring the image of a road; acquiring the image of the horizontal edges of the road; acquiring a difference image of the horizontal edges; acquiring a front view region of a vehicle by accumulating a plurality of the difference images of the horizontal edges; removing interference edge of the front view region; acquiring the interval of the vehicle; repeating the aforementioned steps; real-time obtaining vehicle passing information of each lane; and outputting the vehicle passing information. According to the invention, the method uses the technology of video image analysis to real-time acquire the position of the vehicle in the lane, can obtain the accurate intervals between vehicles, provide basis for adjusting time lengths of switching cycles of intelligent traffic lights. The method is characterized by fast speed, high accuracy, strong anti-light changing capacity, and wide application environment.

Description

Technical field [0001] The invention relates to the field of intelligent traffic light control at traffic intersections, in particular to a method for detecting the distance between vehicles. Background technique [0002] With the development of the country’s economy and the improvement of people’s living standards, more and more cars are entering thousands of households, which puts huge pressure on road traffic, especially during peak hours, where congestion at road intersections is everywhere. It seriously hinders the speed and convenience that cars bring to people. With the application of the electronic traffic light system, the congestion at road intersections has been eased, but congestion still occurs frequently. The reason is that we found that the existing electronic traffic light system has certain shortcomings, that is, it uses a fixed length of time for periodicity. Switching, the problem it brings is: for example, there are many vehicles driving on the north-south ro...

AI Technical Summary

Problems solved by technology

With the application of the electronic traffic light system, the congestion at road intersections has been alleviated, but the congestion still occurs frequently. The reason is that we have found that the existing electronic traffic light system has certain shortcomings, that is, it uses a fixed time length for periodic Switching, the problem it brings is: for example, there are many vehicles driving on the road in the north-south direction, but there are no vehicles driving on the road in the east-west direction. After the traffic light switching cycle, the vehicles on the road in the north-south direction still have to stop, etc. Serious waste of travel time, but also aggravated congestion

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