基于SR—3000的上肢肩关节活动度计算方法

An Method on Calculating upper Limb Shoulder Joint Activity Based on SR—3000

基于SwissRanger—3000(3D深度测绘相机)的基础上,提出了一种计算上肢肩关节活动度的方法。首先利用摄像机获取人体三维数据,结合OpenGL显示人体区域,运用OpenCV函数计算人体HNT模型和肘关节点坐标信息。接着根据人体运动解剖学对关节角度的定义,应用空间解析几何的知识,计算人体的基本轴和基本切面。最后通过计算上臂矢量在人体各基本切面上的投影与相关基本轴的夹角,实时、有效地得到肩关节的外展角、水平屈伸角和屈伸角。实验结果表明此方法可行、有效。

Based on SwissRanger—3000（3D depth mapping camera）,a way of calculating upper limb shoulder joint activity is presented.Firstly using the camera to get three-dimensional data of the body,the body base on OpenGL is displayed,OpenCV functions are used to calculate the HNT model of body and the coordinate information of elbow joint point.And then basing on the joint angle definition of human movement anatomy,the knowledge of space analytic geometry is applied,to compute the body＇s basic axis and basic facets.Lastly through calculating the angle with the projection of the upper arm vector on the body＇s basic section and the relevant fundamental axis,shoulder abduction angle,horizontal flexion angle and flexion angle effectively in real-time are got.Experimental results show that this method is feasible and effective.