The Kernel Techniques in Face Modeling and Animation

The kernel techniques of constructing a 3D model of human head from front and side photos of a specific person and then realizing its simple animations are discussed. The authors have developed an interactive face modeling and animation tool based on these techniques. This paper gives a detailed introduction to the techniques, including polygonal representation for surface, deformation from a generic face model to a specific model, spring mesh, muscle based animation model, key-frame animation technique and expression extraction technique.