基于Kinect的人体三维质心动态测量及准确性分析

doi:10.3969/j.issn.0258-8021. 2015. 06.016

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摘要人体三维质心（COM）对于评价人体平衡能力有很重要的意义，然而昂贵的测量仪器不适于广泛应用于普通诊所或社区医院。微软公司的Kinect设备与编程结合可作为便捷廉价的测量工具，为了分析此系统是否能用于动态测量人体三维COM及数据的准确性,本研究通过将人体合理划分成15 部分，使用Kinect和动作捕捉系统同时采集4 种测试动作下人体各部分端点坐标，并基于人体模型分别合成整体COM并对数据比较。测试动作包括裸足静止站立、踩泡沫板静止站立、裸足站立倾斜、踩泡沫板站立倾斜。比较10 名被试者的COM轨迹数据，结果显示Kinect与动作捕捉系统相比均方根误差均值小于7.3 mm，误差均值最小-2.7 mm最大0.8 mm，动作幅值越大时，相对误差量越小，表明通过编程可将Kinect用于测量人体三维COM，应用于平衡能力评价。

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	段增武肖金壮^*王洪瑞

关键词 ： Kinect, 人体质心, 运动捕捉, 平衡能力

Key words： Kinect center of mass(COM) motion capture balance ability

基金资助:国家自然科学基金（61074175）

引用本文:

段增武肖金壮^*王洪瑞. 基于Kinect的人体三维质心动态测量及准确性分析[J]. 中国生物医学工程学报, 2015, 34(6): 752-756.
Duan Zengwu Xiao Jinzhuang^*Wang Hongrui. The Kinetic Measurement and Accuracy Analysis of Human Body Threedimensional Center of Mass Using Kinect. journal1, 2015, 34(6): 752-756.

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http://cjbme.csbme.org/CN/10.3969/j.issn.0258-8021. 2015. 06.016 或 http://cjbme.csbme.org/CN/Y2015/V34/I6/752

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