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Method for quick vehicle type recognition under video monitoring mode

A technology of video monitoring and vehicle identification, applied in the field of intelligent traffic management, can solve the problems of insufficient recognition accuracy, high recognition time complexity, and low algorithm efficiency

Inactive Publication Date: 2010-07-21
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a fast vehicle identification method under the video monitoring mode, which solves the problems in the prior art that the identification time complexity is relatively large, the efficiency of algorithm execution is low, and the identification accuracy is not high enough

Method used

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  • Method for quick vehicle type recognition under video monitoring mode
  • Method for quick vehicle type recognition under video monitoring mode
  • Method for quick vehicle type recognition under video monitoring mode

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Embodiment Construction

[0073] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0074] Such as figure 1 , set the schematic diagram for the road monitoring scene used in the method of the present invention, monitoring camera 1 is fixed on the directly above the monitored road, 6-10m height from the ground, the farthest distance of the monitored area is no more than 10 times the height from the ground, monitoring The camera depression angle a is set to 10°-20°, and the horizontal distance from the center of the surveillance screen to the surveillance camera is between 20m-50m, which can be adjusted as required.

[0075] The fast vehicle type identification method under the video monitoring mode of the present invention is implemented according to the following steps:

[0076] set up figure 1 The road video monitoring device shown; according to the basic vehicle type information required for traffic dispatching, the vehi...

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Abstract

The invention discloses a method for quick vehicle type recognition under video monitoring mode, which is implemented according to the following steps: setting up a road monitoring device and classifying the vehicles into cars, taxis marked by special color, microbuses, middle-sized vehicles, public buses and large trucks; step 1, initialization, conducting training to the video monitoring device; step2, extracting the area of the vehicle target area and the length and the width of the boundary rectangle of the area, constructing corresponding characteristics and roughly classifying the vehicles into minitype vehicles, middle-sized vehicles and large vehicles; step 3, extracting the main colors of bodyworks of a plurality of minitype vehicle targets to recognize the taxis, then extracting the characteristic parameter of window position of the minitype vehicles, and furthermore, determining the microbuses or cars; and step 4, extracting the characteristic parameters of roof brightness and roof texture to determine whether the large vehicles are public buses or not. Through the method, a variety of vehicles can be recognized quickly and accurately according to the classification characteristics.

Description

technical field [0001] The invention belongs to the technical field of intelligent traffic management, and relates to a fast vehicle vehicle identification method in a video monitoring mode. Background technique [0002] Fast and accurate feature extraction and classification of vehicles in the monitoring area is an important research direction in intelligent transportation systems. In addition to the automatic toll collection of expressways and the vehicle management system of enterprises and institutions, vehicle type recognition is also used in general urban roads. The application on the Internet is also very important for building a smooth city. [0003] The video acquisition requirement of the existing common monitoring scene is that the monitoring camera needs to be fixed directly above the monitored road, at a height of 6-10m from the ground, and the furthest distance of the monitored area should not exceed 10 times the height above the ground. Set it to 10°-20°, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/017G06K9/66
Inventor 朱虹李丽贤刘薇齐振华王栋
Owner XIAN UNIV OF TECH
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