Traffic information collecting apparatus and method thereof

A technology of traffic information collection and traffic parameters, which is applied in the field of image-based pattern recognition, can solve the problems of insufficient mining of image sequence space information, complex algorithms, etc., and achieve the effect of rich detection information, strong reproducibility, and great development potential

Inactive Publication Date: 2008-11-19
刘涛 +1
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AI Technical Summary

Problems solved by technology

The detection line method algorithm is relatively simple, but it only uses the time information of the image sequence, does not fully exploit the spatial information of the image sequence, and can only detect limited traffic information. The algorithms used by commonly used traffic video detection equipment are mostly based on the detection line method
Compared with the detection line method, the algorithm of the vehicle tracking method is relatively complicated, but it makes full use of the time and space information packets of the vehicle in the image sequence, and contains more vehicle behavior information.

Method used

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  • Traffic information collecting apparatus and method thereof

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Embodiment Construction

[0023] Such as figure 1 As shown, the image acquisition module 01 is erected on the gantry across the target road to obtain real-time dynamic traffic image information; through the image transmission module 02 such as optical fiber, the real-time dynamic image collected is transmitted to the image processing module 03, and the analog-to-digital conversion After module 031 performs analog-to-digital conversion into digital images, module 032 performs preprocessing such as gray scale and background, and module 033 processes dynamic continuous images, dynamic target vehicles, and module 034 calculates and obtains traffic parameters of vehicles, which can be extracted Vehicle location information, estimated instantaneous vehicle speed, detected average speed of single vehicle, vehicle length, headway and other information. The specific implementation method is as follows:

[0024] Vehicle position: By calculating the mean value of the position of all blocks labeled n in the label...

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Abstract

The invention discloses a traffic information acquisition device, which is characterized in that the device comprises an image acquisition module-camera equipment, an image transmission module and an image processing module which comprises an analog-to-digital converter module, an image preprocessing module and vehicle tracking module; the image transmission module connects the image acquisition module with the analog-to-digital converter module of the image processing module; the analog-to-digital converter module is connected with the image preprocessing module; the vehicle tracking module is connected with the image preprocessing module. The invention also discloses a traffic information acquisition method which is characterized in that the method comprises the following steps: continuously acquiring the real-time dynamic traffic image information; carrying out analog-to-digital conversion and preprocessing to the dynamic image information, and extracting background information; tracking moving objects; obtaining the real-time traffic information through algorithm.

Description

technical field [0001] The technology relates to pattern recognition and more particularly to image-based pattern recognition. Background technique [0002] With the development of transportation, how to extract microscopic traffic parameters in real time and effectively has become an urgent problem to be solved. Microscopic traffic parameter collection technology is the key technology of traffic informatization. Microscopic traffic parameters have a wide range of applications in traffic applications and research fields, including: traffic control guidance, traffic incident detection, dynamic capacity detection, complex traffic problem solving, experimental traffic engineering research, driving behavior theory and simulation theoretical research. [0003] Commonly used traffic detectors include ultrasonic detectors, microwave detectors, infrared detectors, magnetic detectors, induction coil detectors and video detectors. Compared with other traffic detectors, video detect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G08G1/123H04N7/18
Inventor 刘涛齐征
Owner 刘涛
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