基于足迹采样的运动编辑

Footprints Sampling Based Motion Editing

针对人体两足动画提出一种基于足迹采样的运动编辑算法 足迹很好地描述了两足动画中必须满足的时空约束 ,通过调整足迹的位置与朝向来编辑两足动画是一种较为自然、直观的交互方式 为有效、快速地生成编辑后的动画 ,采用一种实时的逆向运动学算法求解两足动画中的支撑脚约束 ,然后使用层次B样条技术构造偏移映射完成编辑 为了便于逆向运动学算法的求解 。

This Paper presents an editing technique for the motion captured human biped animation data Our algorithm adopts footprints to describe the spacetime constraints which should be satisfied during biped locomotion, and motion editing interface is designed to enable the animator to adjust the footprints A realtime inverse kinematics(IK) solver is adapted to compute the configuration of human body and then motion displacement mapping is constructed through hierarchical B spline In order to facilitate IK solver, our algorithm proposes a sampling based scheme to generate root trajectory