Method and system for recognizing video images of motion states of vehicles in expressway tunnel

A video image and expressway technology, applied in the field of image processing, can solve problems such as unsatisfactory recognition performance and insufficient feature description ability, and achieve the effect of improving high-speed safety management level and enhancing description ability

Inactive Publication Date: 2015-06-17
WUHAN UNIV OF TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method and system for video image recognition of vehicle motion status in expressw

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  • Method and system for recognizing video images of motion states of vehicles in expressway tunnel
  • Method and system for recognizing video images of motion states of vehicles in expressway tunnel
  • Method and system for recognizing video images of motion states of vehicles in expressway tunnel

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specific Embodiment

[0079] A specific embodiment of the present invention is as follows:

[0080] image 3 and Figure 4 It is a video scene of a typical car and a large truck in a certain tunnel. The technology of the invention is used to simulate parking and verify the accuracy of the vehicle model.

[0081] Table 1 below shows the comparison between the present invention and the other two models, indicating that the present invention has better positive detection rate, false detection rate, missed detection rate and recognition accuracy rate.

[0082] The comparative situation of table 1 the present invention and other two kinds of models

[0083]

[0084] The present invention also provides a video image recognition system for vehicle motion status in expressway tunnels, which can solve the contradiction between the large number of video camera channels in expressway tunnels and the small number of display screens in the monitoring center, and can intelligently identify them in a relativ...

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Abstract

The invention discloses a method and system for recognizing video images of motion states of vehicles in an expressway tunnel. The method comprises the following steps: carrying out partition on a video image of a vehicle moving object based on background modeling, and respectively carrying out extraction on multiple features of the vehicle image, wherein the features include a texture feature, a geometric feature and an edge feature; constructing a neural network topology architecture as a base classifier by using the extracted multiple features; carrying out integration on the base classifier by using an Adaboost method so as to form a strong classifier; carrying out vehicle image recognition through the strong classifier; and when the existence of a parking state is recognized, sending a signal to a video monitoring center, automatically switching the monitoring center to monitor the image, starting an intra-tunnel parking state alarm, and releasing a notice to the outside of a tunnel. According to the invention, the hazardous state of vehicle parking in the tunnel can be intelligently recognized by using images transmitted from a video surveillance camera back to the monitoring center, and an alarm is made in time, thereby improving the automation level of the management of the expressway tunnel.

Description

technical field [0001] The invention relates to image processing, in particular to a video image recognition method and system for vehicle motion states in expressway tunnels. Background technique [0002] Due to its low cost and easy implementation, video image vehicle recognition has gradually become a hot spot in highway management applications. At present, the vehicle identification system can basically meet the basic functional requirements of intelligent transportation systems such as traffic statistics and overspeed detection. However, in some specific places on the highway (such as tunnels), there are still many deficiencies in the accuracy and false alarm rate of vehicle recognition through video images and the application level of this technology, and there are still many theoretical and technical problems that have not been resolved. . [0003] There have been many reports at home and abroad about major traffic accidents caused by vehicle breakdowns, accidents o...

Claims

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Application Information

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IPC IPC(8): G06K9/62G06T7/00
Inventor 陈小佳杨科崔太雷苏明义
Owner WUHAN UNIV OF TECH
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