Method and system for inspecting and tracting vehicle based on machine vision

A vehicle detection and machine vision technology, applied in traffic flow detection, instruments, computer components, etc., can solve the problems of large limitations, failure to consider the complexity and variability of the road environment, and failure to use normally

Inactive Publication Date: 2007-01-17
王海燕
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AI Technical Summary

Problems solved by technology

[0006] After searching the existing technical literature, it is found that the existing video vehicle detection technology, such as the inter-frame difference algorithm for motion detection, and the simple area-based detection algorithm, etc., do not take into account the complexity and variability of the road environment in practical applications. The method adopted has great limitations, and cannot effectively identify and track multiple targets, and often cannot be used normally in actual engineering systems.

Method used

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  • Method and system for inspecting and tracting vehicle based on machine vision
  • Method and system for inspecting and tracting vehicle based on machine vision
  • Method and system for inspecting and tracting vehicle based on machine vision

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Embodiment Construction

[0093] see figure 1 and figure 2 , the inventive method is described further below, and the concrete content of its main part is as follows:

[0094] Preprocessing:

[0095] Since the intelligent transportation system is bound to be disturbed by various external natural conditions, these disturbances include changes in rain, snow, fog, light, etc. In the case of rain and snow, they are considered to be a kind of image noise, which may cause some pixels to Misjudgment caused by drastic changes. In order to avoid this kind of situation, the image can be preprocessed first in practical applications to smooth the noise of the image and reduce the impact of grain noise and camera shake.

[0096] Most of the noise, such as the noise caused by sensitive components, transmission channels, rectifiers, etc., is mostly random, that is, white noise. Their influence on a certain pixel point can be regarded as isolated. Therefore, compared with neighboring points, the gray value of t...

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Abstract

A method for detecting and tracking vehicle based on video camera and computer system includes obtaining preliminary edge object region by carrying out global domain value division on obtained difference image of background edge and front ground edge then carrying out interclass variance domain value division on intensified difference image to obtain preliminary object region, forming object region based on integration, carrying out expansion calculation and corrosion calculation on object region to pick up object character, carrying out object identification then locking and tracking object in real time to form object trace.

Description

technical field [0001] The present invention relates to a vehicle detection and tracking method based on machine vision technology, and also relates to a vehicle detection and tracking system based on machine vision Background technique [0002] At present, our country is in a period of rapid economic development, the speed of urban traffic is developing rapidly, and the number of motor vehicles is increasing continuously. In order to solve various problems caused by the rapid development of ground transportation, the Intelligent Transportation System (ITS-Intelligent Transportation System) is an effective way to solve the above contradictions. A new technical field that emerged due to many difficulties in ground transportation. It is an integrated application of high-tech represented by information technology in road transportation. It is an advanced information technology, data transmission technology, control technology and computer processing technology. The comprehensi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/46G06K9/78G06T7/00G08G1/01
Inventor 王海燕
Owner 王海燕
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