人体关节点的计算机自动跟踪系统

An Automatic System of Tracking Human Body Joints with Computer

本文介绍自动跟踪人体关节点的计算机系统。概述了该系统的设计原理、组成和特点。该系统采用开窗跟踪方法,基于概率论中随机向量相关的思想构造快速相关评价函数,并设计预检验以提高跟踪效率。此外,对关节点位移进行预测以减少搜索空间。在人工干预后加以回校,使该技术可用于真实世界中人体运动的分析。

This paper presents a computer system which can track human body joints automatically. The principle of design and the formation and characteristics of the system are outlined in this paper.The method of window tracking technique is used and based on the random vector interrelation of probability theory,a kind of evaluation function is adopted.And in the meantime,preexamination is designed to raise the efficiency.In addition,displacement of joints is tested in advance in order to reduce tracking space.When the whole sequence is processed,the computer smoothes the joints' trajectory according to correction made by man so that the system can be used to analyse the motion of actual human body.