Study on Bezier Curve Applications of Pelvis Trajectory of Virtual Human Walking

As the root joint of the whole lower limbs, pelvis trajectory decides the motion trajectory of the virtual human walking. Most of the current methods of simulating pelvis trajectory can work reasonably well on even terrain, but on the uneven terrain, these methods appear insufficient. This paper uses Bezier curve to simulate the pelvis trajectory. We attain the motion trajectory by using the position points in the middle of leg supporting duration and in the middle of double support phase as control points, then connecting the curve. This approach not only work reasonably well in modeling human normal walking on even terrain, but also appear sufficient to generate human walking on uneven terrain.