Application Reserch of Quaternion in Keyframes Skeletal Animation

In the skeletal animation, effect of in-between frames will influence the fluency of animation directly. The usual methods of building in-between frames include linear interpolation method and higher order spine interpolation. Skeletons and joints in human body not only have the related connection, but also joint is restricted by rotatable angle. Therefore, interpolation of human body' s gesture is different from ordinary object. On the basic of creating human body' s skeletal model, using quaternion method to building in-between frames, and analyzing the result.