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License plate character recognition method based on real-time vehicle tracking and binary index classification

A real-time tracking and character recognition technology, applied in the field of license plate character recognition, which can solve the problems of excessive use of classifiers and long recognition time.

Inactive Publication Date: 2011-05-04
LIAOCHENG UNIV
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the multi-category classification method in the technology disclosed in the above-mentioned documents has the situation that the classifier is used too much, which will inevitably cause the problem of long recognition time

Method used

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  • License plate character recognition method based on real-time vehicle tracking and binary index classification
  • License plate character recognition method based on real-time vehicle tracking and binary index classification
  • License plate character recognition method based on real-time vehicle tracking and binary index classification

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Embodiment Construction

[0061] The technical solutions of the present invention will be described in detail below in conjunction with the embodiments and drawings, but the scope of protection is not limited thereto.

[0062] Embodiment The technical solution of the present invention is to provide a kind of real-time dynamic continuous multi-point tracking method and the license plate character recognition method based on LS-SVM and binary index multi-category classification, and its specific process is as follows figure 1 shown.

[0063] Real-time dynamic continuous multi-point tracking method: first find the moving target to be found at a certain monitoring point—the vehicle, segment the location of the target, and use the optimal threshold segmentation method to segment the target in this area, and identify the moving target. Features, real-time continuous tracking; when the moving target moves and leaves the field of view of this monitoring point, the system will transmit the locked moving target ...

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Abstract

The invention relates to a license plate character recognition method based on real-time vehicle tracking and binary index classification, which comprises the following steps of: dynamically and continuously performing multi-point tracking on a vehicle in real time, and recognizing the license plate character based on a least squares support vector machine (LS-SVM) and the binary index classification. A novel license plate-extracting scheme which comprehensively adopts gray gradient, shape and posture, vision models and the like is provided in the stage of segmenting and extracting the license plate character by using the space distribution information of the license plate character. The robustness and accuracy of extracting the license plate are improved, and the real-time property is guaranteed.

Description

technical field [0001] The present invention belongs to an important application field of intelligent traffic system - the technical field of real-time continuous tracking of vehicles and license plate character recognition, and in particular relates to a real-time continuous multi-point tracking method and license plate character recognition based on LS-SVM and binary index multi-category classification method. Background technique [0002] With the development of computer technology and digital image processing technology, the application field of computer vision intelligence technology has been rapidly expanded. Moving target recognition and dynamic tracking have become a very active topic in the field of computer vision, and have high practical value in the fields of traffic monitoring, military automatic navigation, biological organization, and motion analysis. The purpose of the automatic tracking control system of moving targets is to The video image sequence of the ...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/66G06N3/08
Inventor 葛广英葛菁
Owner LIAOCHENG UNIV
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