Regional moving vehicle flow detection method based on video image technology

A technology of traffic flow detection and video image, applied in traffic flow detection, image enhancement, image analysis, etc., can solve problems such as complex model

Inactive Publication Date: 2015-04-01
FUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These models can reflect road traffic conditions well, but these models are relatively complex

Method used

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  • Regional moving vehicle flow detection method based on video image technology
  • Regional moving vehicle flow detection method based on video image technology
  • Regional moving vehicle flow detection method based on video image technology

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Embodiment Construction

[0031] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0032] The invention provides a method for detecting regional moving vehicle flow based on video image technology, such as figure 1 Shown, it is characterized in that, realize according to the following steps:

[0033] S1: Fix the video camera in the road area to be tested, and acquire continuous color images of moving vehicles in the road area;

[0034] S2: Matching and calibrating the continuous vehicle color images by Hough transform to eliminate camera shake caused by strong wind or passing of heavy vehicles;

[0035] In this embodiment, the road area to be tested includes three lanes, and three consecutive color images are acquired; and the strong wind or the passing of heavy vehicles will cause the camera to shake, thereby changing the image area and deforming the lane line and the image. Therefore, Successive images need to be ca...

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Abstract

The invention relates to a regional moving vehicle flow detection method based on a video image technology. The method comprises steps as follows: firstly, acquiring continuous moving vehicle color images, and performing matching calibration on the color images by the aid of linear Hough transformation; secondly, performing grey level transformation on the color images, and performing a subtraction operation and an intersection operation on grey level images respectively to acquire weak images; performing linear stretching, binaryzation and binary expansion transformation on the weak images to acquire enhanced and expanded moving vehicle images, wherein signals are small communicated regions; finally, defining a Euclidean distance, calculating Euclidean distances between geometric center points of the communicated regions respectively on the basis of the defined distance, determining the number of final regions, and numerically marking the final regions. With the adoption of the regional moving vehicle flow detection method based on the video image technology, the vehicle condition and the congestion condition of a current road region can be estimated quickly, efficiently and simply, and the method can be well applied to practice.

Description

technical field [0001] The invention relates to a method for detecting traffic flow in a road area, in particular to a method for detecting regional moving vehicle flow based on video image technology. Background technique [0002] With the rapid development of our country's economy, the number of cars in the city is constantly increasing, and the problem of traffic congestion is becoming more and more serious. Therefore, it is very urgent to study the problem of traffic congestion. In recent years, many scholars have proposed many algorithms and models to solve the traffic congestion problem, for example, fluid dynamics model, gas dynamics model. These models can well reflect the road traffic conditions, but these models are relatively complex. With the development of video image technology, video image technology can obtain some traffic information such as traffic flow, vehicle speed, length of stationary vehicle queue, automatically detect traffic accidents, provide vid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G08G1/065G06T7/00
CPCG06T7/13G06T2207/10016G06T2207/10024G06T2207/20192G06T2207/30242G08G1/0175G08G1/065
Inventor 王卫星
Owner FUZHOU UNIV
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