基于图象技术的三维步态运动测量  

3D Kinematic Measurement of Human Gait Based on Imaging Techniques

作　　者：程建[1] 王东泉[1] 施鹏飞[1] 钱不凡[2] 杨庆铭[2] 

机构地区：[1]上海交通大学图象处理与模式识别研究所 [2]上海市伤骨科研究所

出　　处：《上海交通大学学报》1998年第4期59-64,共6页Journal of Shanghai Jiaotong University

摘　　要：提出一种三维步态运动测量方法，并介绍一个由作者开发的测量系统．该系统基于图象处理和机器视觉技术．人的步态运动学测量包括图象采集、摄象机校准、关节标志检测、空间标志中心的三维坐标重建、运动学参数和图形的计算和输出．该实验系统具有实施成本低、通用性好、测量精度高的特点．This paper presents a three dimensional kinematic measurement method of human gait and introduces a measurement system which is based on image processing and machine vision techniques. The process of kinematic measurement of human gait includes five steps: image acquisition, camera calibration, joint marker detection, 3D coordinate reconstruction of the marker centers in space, and computation and output of kinematic parameters and graphs. The experimental system shows that this method is cheap in its implementation cost and has better measurement accuracy.

关 键 词：步态分析 运动学 图象处理 机器视觉 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]