Modeling and animation of 3D characters with ball B-splines

Abstract

This paper proposed a new approach for modeling and animation of characters. Through using ball B-splines,an automatic character building model based on skeleton was realized and a character animation generation method driven by data was obtained. When the skeleton of a character was given,these radii on joints were obtained according to the length of bones in anthropometry. Then ball B-spline curves and surfaces were generated to represent characters through interpolating joint points and radii on them. The modeling method is rapid. Furthermore,by using motion data to update control points,real-time animation is achieved.