Hybrid predictive dynamics: a new approach to simulate human motion
Hybrid predictive dynamics: a new approach to simulate human motion
复制标题
混合预测动力学:模拟人体运动的新方法
DOI:
10.1007/s11044-012-9306-y
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发表时间:
2012
影响因子:
3.4
通讯作者:
K. Abdel
中科院分区:
文献类型:
--
作者:
Y. Xiang;J. Arora;K. Abdel
A new methodology, called hybrid predictive dynamics (HPD), is introduced in this work to simulate human motion. HPD is defined as an optimization-based motion prediction approach in which the joint angle control points are unknowns in the equations of motion. Some of these control points are bounded by the experimental data. The joint torque and ground reaction forces are calculated by an inverse algorithm in the optimization procedure. Therefore, the proposed method is able to incorporate motion capture data into the formulation to predict natural and subject-specific human motions. Hybrid predictive dynamics includes three procedures, and each is a sub-optimization problem. First, the motion capture data are transferred from Cartesian space into joint space by using optimization-based inverse kinematics (IK) methodology. Secondly, joint profiles obtained from IK are interpolated by B-spline control points by using an error-minimization algorithm. Third, boundaries are built on the control points to represent specific joint profiles from experiments, and these boundaries are used to guide the predicted human motion. To predict more accurate motion, the boundaries can also be built on the kinetic variables if the experimental data are available. The efficiency of the method is demonstrated by simulating a box-lifting motion. The proposed method takes advantage of both prediction and tracking capabilities simultaneously, so that HPD has more applications in human motion prediction, especially towards clinical applications.
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影响因子:
2.4
作者:
Hamner, Samuel R.;Seth, Ajay;Delp, Scott L.
通讯作者:
Delp, Scott L.
DOI:
10.1115/1.1979507
发表时间:
2005-08
期刊:
Journal of biomechanical engineering
影响因子:
--
作者:
Chia-Yu E. Wang;J. Bobrow;D. Reinkensmeyer
通讯作者:
Chia-Yu E. Wang;J. Bobrow;D. Reinkensmeyer
DOI:
10.1115/1.3138669
发表时间:
1987
期刊:
Journal of biomechanical engineering
影响因子:
--
作者:
Pedersen,DR;Brand,RA;Cheng,C;Arora,JS
通讯作者:
Arora,JS
影响因子:
--
作者:
F. Zajac
通讯作者:
F. Zajac
影响因子:
2.4
作者:
Thelen, DG;Anderson, FC
通讯作者:
Anderson, FC