Target classification method and system based on target edge direction

A direction histogram, target technology, applied in character and pattern recognition, instruments, computer parts and other directions, can solve the problems of low robustness of the classifier, inconvenient use, inability to determine the detection area, etc., to achieve low computational complexity , the effect of simplifying the calculation and saving the operation cost

CN102243706BActive Publication Date: 2014-12-10HANGZHOU HIKVISION DIGITAL TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2014-12-10

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Abstract

The invention relates to the field of video image processing and discloses a target classification method and system based on a target edge direction. In the invention, target characteristics are extracted directly through background; edge detection is performed by using an edge detection operator and the system is more sensitive to image noise; movement targets are classified according to a multiple-Gaussian model quick algorithm by directly using gradient orientation histogram characteristics. By the adoption of the method and the system provided by the invention, effective computation is achieved, operation cost is reduced, detection accuracy is improved, and the effects of higher adaptability and less computation quantity are achieved.
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Description

technical field

[0001] The invention relates to the field of video image processing, in particular to a technology for automatically classifying objects in surveillance videos. Background technique

[0002] At present, traffic accidents are one of the main factors leading to the death of pedestrians. Because cyclists and pedestrians are often in a weak position in traffic accidents, once they have a traffic accident with a motor vehicle, they are easily injured. Therefore, pedestrian detection technology has become a research direction that has attracted much attention in the field of intelligent analysis in recent years, especially in the field of intelligent traffic video analysis, where the classification and detection of objects plays a vital role in road management and traffic safety.

[0003] The inventors of the present invention have found that the current main methods of object classification have the following corresponding deficiencies:

[0004] 1. The method of ...

Examples

Embodiment Construction

[0036] In the following description, many technical details are proposed in order to enable readers to better understand the application. However, those skilled in the art can understand that without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.

[0037] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.

[0038] The first embodiment of the present invention relates to a method for automatically classifying objects in a surveillance video. figure 1 is a schematic flow chart of the method for automatically classifying objects in the surveillance video. The method for automatically classifying objects in the surveillance video includes the following ...