A method for detecting distance between vehicles

A detection method and vehicle technology, which can be applied to instruments, computing, character and pattern recognition, etc., can solve the problems of wasting road time and aggravating congestion, and achieve the effect of strong resistance to light changes, high speed and high precision.

Active Publication Date: 2020-08-28
ANHUI TSINGLINK INFORMATION TECH
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  • Abstract
  • Description
  • Claims
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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

Method used

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  • A method for detecting distance between vehicles
  • A method for detecting distance between vehicles
  • A method for detecting distance between vehicles

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Experimental program
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Embodiment Construction

[0052] The present invention will be further described below in conjunction with accompanying drawing:

[0053] Such as figure 1 As shown, a vehicle distance detection method includes the steps in the following order:

[0054] S1. Setting the lane area is mainly to mark each lane area in the road video image, such as figure 2 As shown in , where the dark straight line represents the lane line.

[0055] S2. Collect road images, mainly collecting video images of checkpoint roads in real time.

[0056] S3. Obtain the horizontal edge image. In order to overcome the influence of complex and changeable light in the actual environment and increase the stability of the system, according to the fact that vehicles in the lane show more horizontal edges, the present invention selects the horizontal edge feature to describe the existence of the vehicle, and the effect is Such as image 3 As shown, the specific steps are as follows:

[0057] S31. Road blurring processing is mainly to...

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Abstract

The invention relates to a vehicle distance detection method, comprising the following steps: setting a lane area; collecting a road image; obtaining a road horizontal edge image; obtaining a horizontal edge difference map; Remove the interference edge of the foreground area; obtain the vehicle distance; repeat the above steps to obtain the vehicle traffic information of each lane in real time; output the vehicle traffic information. The present invention adopts video image analysis technology to obtain the position of vehicles in the lane in real time, accurately obtain the distance between vehicles, and provide a basis for adjusting the length of the switching cycle of intelligent traffic lights. This method has the advantages of fast speed, high precision, strong resistance to light changes, Suitable for a wide range of environments.

Description

technical field [0001] The invention relates to the field of intelligent traffic light control at traffic intersections, in particular to a vehicle distance detection method. Background technique [0002] With the development of the country's economy and the improvement of people's living standards, more and more cars have entered thousands of households, which has brought tremendous pressure on road traffic, especially during rush hour, and congestion at road intersections can be seen everywhere. It has seriously hindered the speed and convenience that automobiles bring to people. 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 dri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
CPCG06V20/54G06V2201/08
Inventor 张卡何佳尼秀明
Owner ANHUI TSINGLINK INFORMATION TECH
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