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Road traffic state detecting device based on omnibearing computer vision

A state detection device, computer vision technology, applied in traffic flow detection, road vehicle traffic control system, traffic control system, etc., can solve problems such as large limitations, high implementation investment and maintenance costs, unfriendly roads and vehicles, etc.

Inactive Publication Date: 2010-05-19
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] In order to overcome the limitations of the existing road traffic state detection devices, the diversity of data collection objects is poor, the data is weak in time and space, the implementation of investment and maintenance costs is high, and the contact detection means are not friendly to roads and vehicles, it is difficult to From the perspectives of macroscopic, mesoscopic and microscopic, and the real-time evaluation of road traffic service level status from people's subjective feelings, the present invention provides a method with wide detection range, high detection accuracy, good real-time detection, convenient implementation, and high detection results. Intuitive and clear, it has subjective sensibility index data and objective evaluation index data, and it is convenient for urban road networks at all levels to comprehensively evaluate the road traffic state in time and space. A road traffic state detection device based on all-round computer vision

Method used

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  • Road traffic state detecting device based on omnibearing computer vision
  • Road traffic state detecting device based on omnibearing computer vision
  • Road traffic state detecting device based on omnibearing computer vision

Examples

Experimental program
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Embodiment 1

[0096] refer to figure 1 , 8 , 10, 11, a road traffic state detection device based on all-round computer vision, including a camera device installed at each measuring point in each road on the road network, a microcomputer for evaluating the road traffic state according to the video data of the camera device processor, if attached figure 1 As shown; the microprocessor includes: panoramic image acquisition unit, road service capability customization unit, road service level self-learning unit, road service level judgment unit, detection data processing unit and manual verification unit, as attached Figure 8 shown;

[0097] The panoramic image acquisition unit includes a system initialization module and an image acquisition module;

[0098] The system initialization module is used to read some data index information, custom data and detection point spatial location information into the dynamic storage unit for calling in subsequent processing;

[0099] The image acquisition...

Embodiment 2

[0160] refer to Figure 2 to Figure 11 , the rest are exactly the same as in embodiment 1, the only difference is the camera device; the camera device in embodiment 2 adopts an omnidirectional vision sensor, and the omnidirectional vision sensor is referred to as ODVS, which is the abbreviation of Omni-Directional Vision Sensors. The principle is that the video image information of the horizontal 360° area can be obtained by one imaging. Its advantages are: large amount of information, free installation location, real-time acquisition of images and no need to aim at the target when monitoring the environment, and the panoramic view of the road can be obtained without placing the ODVS at a high place on the road, especially for the real-time processing requirements of the panoramic view Next, it is a fast and reliable way to collect visual information, as attached Figure 9 shown.

[0161] When using ODVS to monitor the entire road, it is hoped that the top-view panoramic vid...

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Abstract

The invention relates to a road traffic state detecting device based on omnibearing computer vision, comprising shooting devices and a microprocessor, wherein the shooting devices are installed on all measuring points in all roads in a road network; the microprocessor is used for evaluating the road traffic state according to the video data of the shooting devices and comprises a full-view image obtaining unit, a road service capability customizing unit, a road service level self-learning unit, a road service level judging unit, a detecting data processing unit and an artificial checking unit. The road traffic state detecting device based on omnibearing computer vision has wide detecting range, high detecting precision, good detecting instantaneity, convenient application, visual and clear detecting result, subjective sensitivity index data and objective evaluation index data and is convenient for all grades of road networks of a city to carry out comprehensive evaluation on the road traffic state in time and space.

Description

technical field [0001] The invention belongs to the application of all-round computer vision sensor technology, image recognition technology, database technology, urban road digital coding technology and network communication technology in road traffic state detection, especially a road traffic state detection device based on all-round computer vision . Background technique [0002] Today's traffic problems have become a global "urban problem", and traffic congestion is the main manifestation of the city's "traffic disease". The "cause" of urban traffic congestion stems from a variety of factors, and traffic congestion directly affects the quality of people's travel, especially those who use vehicles for transportation. Congested road vehicles, frequent traffic accidents, deteriorating traffic environment, energy shortage, and increasing environmental pollution. These increasingly serious traffic problems are related to the basic concepts of modern traffic, namely accessibi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G08G1/052G08G1/056G08G1/065
Inventor 汤一平楼建人李小畅俞立张建跃富吉勇杨冠宝姜军孙军林蓓宗明理
Owner ZHEJIANG UNIV OF TECH
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