Target tracking method and system and staff behavior analyzing method and system

A target tracking and behavior analysis technology, applied in image analysis, closed-circuit television system, image enhancement, etc., can solve problems such as high requirements for camera installation, difficult target classification, and difficult tracking, and achieve good adaptability and easy function improvement and expansion , a wide range of effects

Active Publication Date: 2015-12-23
SUZHOU KEDA TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] For this reason, the technical problem to be solved by the present invention lies in the personnel detection and tracking method based on face detection, head and shoulders detection or whole body detection, which may easily cause false positives, missed negatives, difficult tracking, etc. As a result, and it has high requirements for the erection of cameras, a method and system for target tracking based on head detection, and a method and system for analyzing human behavior are proposed.

Method used

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  • Target tracking method and system and staff behavior analyzing method and system
  • Target tracking method and system and staff behavior analyzing method and system
  • Target tracking method and system and staff behavior analyzing method and system

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Experimental program
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Embodiment 1

[0083] like figure 1 As shown, the present embodiment provides a target tracking method, comprising the following steps:

[0084] S11: using a camera to acquire a video image;

[0085] S12: Using the front head classifier, the back head classifier, the left head classifier and the right head classifier respectively to detect candidate head objects in the current image.

[0086] S13: Deduplicate and screen candidate head targets detected by each classifier;

[0087] S14: delete the head target that does not meet the tracking conditions;

[0088] S15: Track the remaining head targets respectively.

[0089] Since the human head is relatively round and has the characteristics of rotation invariance, the angle adaptability of the human head is the best, and the requirements for camera installation are low. In this method, the angle between the installation direction and the horizontal plane is greater than 0 degrees and less than 60 degrees. The video stream captured by the cam...

Embodiment 2

[0120] Such as Figure 4 As shown, this embodiment provides a method for analyzing personnel behavior, including:

[0121] S21: Use the target tracking method described in Embodiment 1 to track the human head target in the video image captured by the camera;

[0122] S22: Analyze the behavior of the personnel corresponding to each head target according to the tracking results, including counting the number of personnel; and / or, analyzing the density of personnel; and / or, counting the number of personnel in each direction; and / or, counting a given time The thermal situation of pedestrians in the area; analyze the abnormal behavior of personnel, including wandering, running, staying, mixing lines, being alone, falling to the ground abnormally, and entering and leaving designated areas.

[0123] specifically:

[0124] Counting the number of personnel refers to accurately counting the number of personnel in the designated area or in the full screen according to the head target d...

Embodiment 3

[0165] Such as Figure 5 As shown, this embodiment provides a target tracking system, including:

[0166] Image acquisition unit U1: used to acquire video images with a camera;

[0167] Detection unit U2: used to detect the candidate head target in the current image by using the front head classifier, the back head classifier, the left head classifier and the right head classifier respectively;

[0168] Deduplication and screening unit U3: used for deduplication and screening of candidate head targets detected by each classifier;

[0169]Tracking target screening unit U4: used to delete head targets that do not meet the tracking conditions;

[0170] Tracking unit U5: for tracking the remaining human head targets respectively.

[0171] Since the angle adaptability of the human head is the best and the requirements for camera installation are low, the target tracking system provided by this embodiment is applicable to video streams collected by cameras whose installation dire...

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Abstract

The invention provides a target tracking method and system and a staff behavior analyzing method and system. The target tracking method comprises the steps that a camera is used to acquire a video image; a front head classifier, a back head classifier, a left head classifier and a right head classifier are respectively used to detect candidate head targets in the current image; deduplication and screening are carried out on the candidate head targets detected by the classifiers; head targets which does not meet a tracking condition are deleted; and the remaining head targets are respectively tracked. The technical problems of false positives, false negatives, difficulty tracking and high camera erection requirement, which are caused by easily being blocked, difficulty target classification and the like, of a staff detection and tracking method based on face detection, head and shoulder detection or whole body detection are solved. According to the invention, accurate staff track tracking can be carried out based on the head targets; the problem of target restating can be reduced; and staff behavior analyzing can be carried out based on tracking results.

Description

technical field [0001] The invention relates to the technical field of video monitoring. Specifically, it relates to a target tracking method and system, and a personnel behavior analysis method and system. Background technique [0002] With the rapid development of social economy, the application of video surveillance system in various industries is gradually maturing, and the number of cameras built and put into use is increasing rapidly. How to effectively use these cameras to better maintain social stability and harmony, monitor personal behavior in public places well, and eliminate various illegal and extreme behaviors in the bud has become an imminent problem for the law enforcement departments of the entire society. . [0003] Since the monitoring system collects a large number of videos, real-time monitoring of these videos has gradually become a big problem. Authoritative data shows that people's attention can only last for 20 minutes, and more than 90% of the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06T7/20H04N7/18
CPCH04N7/18G06T2207/30196G06V20/53
Inventor 张全磊晋兆龙陈卫东张天益徐文才
Owner SUZHOU KEDA TECH
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