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Traffic flow counting method for expressway

A technology of expressway and statistical method, which is applied in the field of computer vision, can solve the problems affecting the accuracy of vehicle detection and incomplete extraction of moving vehicles, and achieve the effects of good real-time performance, traffic congestion relief, and high detection accuracy

Inactive Publication Date: 2017-05-31
CHENGDU TOPPLUSVISION TECH CO LTD
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to propose a traffic flow statistics method for expressways, to solve the problem that the traditional traffic flow statistics scheme is incomplete in the extraction of moving vehicles and affects the accuracy of vehicle detection

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  • Traffic flow counting method for expressway
  • Traffic flow counting method for expressway
  • Traffic flow counting method for expressway

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Embodiment Construction

[0039] The invention aims at proposing a traffic flow statistics method of expressways, which solves the problem that the traditional traffic flow statistics schemes are incomplete in extracting moving vehicles and affect the accuracy of vehicle detection. In the present invention, firstly, a camera is used to shoot a vehicle entering the field of view, and a Gaussian mixture model is used to carry out background modeling, and the original image is separated into background pixels; The moving target classification algorithm of the support vector machine is used to extract the vehicles and mark them; finally, the number of rectangular boxes in the virtual detection area is counted in real time to count the traffic flow.

[0040] Compared with the traditional technology, the present invention proposes to use the Gaussian mixture model to update the background, which makes up for the deficiency that the traditional background difference algorithm uses the weighted average method t...

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Abstract

The invention relates to a computer vision technique, discloses a traffic flow counting method for an expressway, and aims at solving the problem that in a traffic flow counting scheme of a traditional technique, the vehicle detection accuracy is influenced due to the fact that extraction of moving vehicles is incomplete. The method comprises the following steps that a, rectangular detection zones are arranged at the fixed places on the two sides of a lane of a monitored area of the expressway; b, video data of the monitored area of the expressway is collected and preprocessed; c, background modeling is conducted through a Gauss mixed model, and background pixels are separated from an original image; d, moving targets are extracted from the image; e, vehicles are recognized from the extracted moving targets and marked; f, the marked vehicles are tracked and counted, and then the traffic flow is calculated.

Description

technical field [0001] The invention relates to computer vision technology, in particular to a traffic flow statistics method for expressways. Background technique [0002] With the rapid development of modern economy, expressway transportation has become an important mode of transportation in the transportation industry. In order to ensure smooth traffic and driving safety, thereby improving environmental quality, traffic flow detection on expressways is particularly important. The existing traffic flow detection methods in current traffic are mainly divided into three parts: extracting moving targets from image sequences, identifying the extracted targets and counting vehicles. [0003] The traditional method for extracting moving objects is the background difference method, which uses the weighted average method to update the background, but the update effect is not ideal, resulting in incomplete extraction of moving vehicles, which affects the accuracy of vehicle detect...

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Application Information

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IPC IPC(8): G08G1/01G08G1/017G08G1/065
CPCG08G1/0125G08G1/0175G08G1/065
Inventor 周剑谷瑞翔代艳何佳蓉龙学军
Owner CHENGDU TOPPLUSVISION TECH CO LTD
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