Mann R W, Antonsson E K
Bull Hosp Jt Dis Orthop Inst. 1983 Fall;43(2):137-46.
A fully automatic optoelectronic photogrammetric technique is presented for measuring the spatial kinematics of human motion (both position and orientation) and estimating the inertial (net) dynamics. Calibration and verification showed that in a two-meter cube viewing volume, the system achieves one millimeter of accuracy and resolution in translation and 20 milliradians in rotation. Since double differentiation of generalized position data to determine accelerations amplifies noise, the frequency domain characteristics of the system were investigated. It was found that the noise and all other errors in the kinematic data contribute less than five percent error to the resulting dynamics.
提出了一种全自动光电摄影测量技术，用于测量人体运动的空间运动学（位置和方向）并估计惯性（净）动力学。校准和验证表明，在两米见方的视场内，该系统在平移方面的精度和分辨率达到一毫米，在旋转方面达到20毫弧度。由于对广义位置数据进行二次微分以确定加速度会放大噪声，因此对该系统的频域特性进行了研究。结果发现，运动学数据中的噪声和所有其他误差对最终动力学的贡献误差小于5%。
