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Video-based method for tracking human body limb movement

A technology of human body and limbs, applied in image data processing, instruments, computing and other directions, can solve problems such as slow speed

Inactive Publication Date: 2009-12-09
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is characterized by higher tracking accuracy, but slower speed

Method used

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  • Video-based method for tracking human body limb movement
  • Video-based method for tracking human body limb movement
  • Video-based method for tracking human body limb movement

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Embodiment Construction

[0056] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0057] see figure 1 , introduce the present invention based on the video tracking method of human limb movement, this method is only limited to tracking the limb movement of a single walking human body, its specific operation is mainly divided into two steps:

[0058] Step 1, initialization: Decompose the human body image into the following 10 parts: head, torso, left upper arm, left forearm, right upper arm, right forearm, left thigh, left calf, right thigh, right calf, and use the Sacral joint p1, neck joint p2, right shoulder joint p3, right elbow joint p4, right wrist joint p5, left shoulder joint p6, left elbow joint p7, left wrist joint p8, right hip joint p9, right knee joint p10, right ankle joint p11, The 15 joint points of the left hip joint p12, left k...

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Abstract

The invention relates to a video-based method for tracking human body limb movement which only tracks the limb movement of a single walking person; the method has the following operation steps: (1) initialization: a human body image is divided into 10 parts and 15 articulation points are used to describe the positions of the 10 parts in the image, so that the positions of the 10 articulation points in each image are confirmed to realize tracking of human body limb movement; (2) prediction: a numerical value of a posture vector RA responding to the current image is predicted only by predicting the numerical value of the posture vector RA of the previous frame, so that tacking of human body limb movement can be realized. In the method of the invention, a camera is only needed; in addition, two cases of edge sampling and internal sampling are both taken into account when weight of particles is calculated, so that the method has the advantages of less restrictions, no need of camera calibration, simple application, accurate pose recovery and the like.

Description

technical field [0001] The invention relates to a video-based tracking method of human limb movement, which belongs to the technical fields of computer digital image processing and computer vision. Background technique [0002] In recent years, the video-based tracking of human limb movements has become a key technology and application for using computers to analyze and understand human behavior. It can be widely used in the following situations: [0003] (1) Human-computer interaction: The computer understands human behavior or operation through real-time video images, so as to realize the function of controlling the computer without using the keyboard and mouse. [0004] (2) Intelligent monitoring: Automatic monitoring and tracking of various actions of people in public places, and analysis of human behavior based on the results. For example, automatic monitoring of theft in supermarkets. [0005] (3) Video retrieval: For example, when a computer is to automatically coun...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T7/20
Inventor 马华东曾成斌明安龙
Owner BEIJING UNIV OF POSTS & TELECOMM
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