基于欧拉角的关节活动度测量系统

Joint motion measurement system based on Euler angle

人体关节活动度的测量在司法鉴定、康复医学等领域有着重要的意义。设计并实现了一种基于欧拉角的关节活动度测量系统,系统利用光学定位设备获取标记点位置信息,通过旋转矩阵变换与欧拉角反解算法计算角度,实现了精确、实时的关节活动度测量。系统适用于人体颈部关节、腰部关节、肩关节、肘关节、腕关节、髋关节、膝关节以及踝关节的活动度测量。精度验证实验结果显示,系统的测量精度可达到0.3°。

Human joint motion measurement means a lot in judicial expertise ,rehabilitation medicine and other fields . This paper designs and realizes a kind of joint motion measurement system based on euler angle . The System get marker location information through optical positioning device ,then compute angles using algorithm of rotation matrix and euler angle inverse solution .System has realized the accurate ,real‐time motion measurement and it suit to the motion measurement of neck ,waist ,shoulder ,elbow ,wrist ,hip ,knee and ankle .Accuracy verification experiment show that the system precision can reach within 0 .3 degrees .