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Moving object detecting and tracing method in video monitor

A moving target, video surveillance technology, used in closed-circuit television systems, image data processing, instruments, etc., can solve the problem of inability to accurately and effectively realize detection and tracking, and achieve accurate and reliable image detection and tracking results.

Inactive Publication Date: 2008-01-02
HARBIN ENG UNIV
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AI Technical Summary

Problems solved by technology

[0004] At present, there are many methods for target detection and tracking in video surveillance, but due to the influence of many factors such as the environment, the detection and tracking of targets are unstable, and these methods are all to improve the effect of detection and tracking in a certain aspect. Accurate and effective detection and tracking

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0030] The technical characterictic of this embodiment has:

[0031] 1 Use the moving target detection technology to accurately detect the moving target in the video sequence, and use the inter-frame difference combined with the binary grayscale morphology method to obtain a complete and clear moving target edge;

[0032] 2 Using the feature-based tracking method to track the moving target. The target features are expressed as some features that need to be transformed and calculated. Such as regional histogram, perimeter, area, aspect ratio, circularity, gray mean value, moment feature and other characteristic parameters. These features are very suitable for the actual detection and tracking requirements due to the simple calculation and stable features. In this embodiment, the features such as centroid and area of ​​the moving object are used to ...

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Abstract

The invention provides a mobile target detection and track method of video detection, which comprises that first inputting video data, collecting sequential image in the video data, pretreating the image, checking the mobile target in the sequential image, reconstructing a background mode and extracting the mobile object, processing character extraction and character match on the mobile target, tracking the checked mobile target in the sequential image, outputting track result, to expresses motion process and predict motion tendency, at least according to the motion tendency and relative motion, judging if the detected mission occurs, when the mission occurs, reacting for the target motion to prompt about the abnormal target motion, and when the mission not occurs, going to track. The invention has accurate and reliable image check and track result on mobile target of video detection, to meet the detection demand of mobile target in supermarket or the like.

Description

(1) Technical field [0001] The invention belongs to the technical field of intelligent information processing, and in particular relates to a method for detecting and tracking a moving target in video monitoring. (2) Background technology [0002] With the rapid development of multimedia technology and the continuous improvement of computer performance, computer vision and image processing technologies are more and more widely used in video surveillance systems. The main reasons are as follows: 1. Computer vision applies computer technology to extract high-quality information from digital images, which can efficiently, accurately, safely and reliably complete video surveillance work, and improve the degree of automation and efficiency of monitoring; 2. The monitoring system installed Video cameras are more economical and less destructive than installing other sensors; 3. The monitoring information obtained by computer vision is convenient for networking, which is conducive t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18G06T7/20
Inventor 张菁单颖李艳波于杨陈杰赵明于思亮王海玲王立伟
Owner HARBIN ENG UNIV
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