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Method and apparatus for processing real time statistical vehicle flowrate using video image

A technology of video image and traffic flow, applied in image data processing, image analysis, traffic flow detection, etc., can solve problems such as poor accuracy and complicated methods

Inactive Publication Date: 2009-08-19
JILIN UNIV
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Problems solved by technology

[0009] The technical problem to be solved by the present invention is to overcome the existing problems in the prior art that the method is complicated or the accuracy is poor, and a computer program is used to provide a method for real-time statistics of traffic flow based on virtual detection coils using video image processing technology and device

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  • Method and apparatus for processing real time statistical vehicle flowrate using video image
  • Method and apparatus for processing real time statistical vehicle flowrate using video image
  • Method and apparatus for processing real time statistical vehicle flowrate using video image

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Embodiment Construction

[0069] The present invention is described in detail below in conjunction with accompanying drawing:

[0070] refer to figure 1 and figure 2 , the object of the present invention is to provide a kind of under the requirement that guarantees the real-time performance of the statistical traffic flow method, improve the method for adopting video image processing of collecting traffic flow information accuracy as far as possible. In order to achieve the above purpose, the method of real-time statistics of traffic flow information based on virtual detection coil using video image processing technology adopts the following steps:

[0071] 1. First install a video image acquisition device (camera) on the road where the traffic flow information needs to be detected, or utilize an existing suitable video image acquisition device, and connect with a computer with a self-edited computer program through a USB interface to establish A complete video image acquisition and processing syste...

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Abstract

The invention discloses a method and a device for carrying out real-time traffic flow statistics by adopting video image processing, aiming at solving the problem that either the method is complex or the accuracy is low. The method comprises the following steps: 1) a virtual detection coil is arranged on a lane in the video image; 2) the pixel in each frame of image which passes the virtual detection coil and is acquired by a video image acquisition device is processed to obtain a moving vehicle target; 3) the shadow of the segmented moving vehicle target is detected and inhibited; and 4) the change of the pixel value in the video image which passes the virtual detection coil is analyzed to calculate the number of the cars. The virtual detection coil arranged on the lane takes the shape of a rectangle, the length of the virtual detection coil is identical to the width of the lane, the width of the virtual detection coil is three to six pixels, the number of the virtual detection coils is identical to the number of the lane which detects the traffic flow, and the distance between two virtual detection coils on adjacent lanes in the direction of the lane is less than one half of the body length of a smallest vehicle.

Description

technical field [0001] The present invention relates to a method for obtaining traffic flow information by video image processing applied in the field of intelligent transportation systems, more specifically, it relates to a method and device for real-time statistics of traffic flow by using video image processing using computer programs. Background technique [0002] Transportation has been closely connected with people's life and social development since ancient times. Nowadays, with the rapid development of the world economy, the rapid development of urbanization and motorization has caused a sharp increase in traffic demand. While enjoying the convenience brought by modern civilization to our life, we are facing such a problem - traffic congestion and environmental pollution. This contradiction between vehicles and roads, and between roads and the environment has become one of the important factors restricting the normal operation of society and economy. [0003] Intel...

Claims

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Application Information

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IPC IPC(8): G08G1/01G06T7/20
Inventor 李天坤陈万忠
Owner JILIN UNIV
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