Nonuniform Resampling Based on Method for Pixel-wise Correspondence Between 3D Faces

In order to get few vetices and 3D faces, patche-based method is used for gridded-resampling, which decides the sampling density automatically over the face patches by analyzing each patch's curvature. The method produces nonuniform mesh and achieves the point-to-point correspondence of different 3D faces. The experimental results show that the method is not only able to reduce the number of mesh vetices of 3D face after resampling, but it can also keep the similarity of geometry and appearance well. And the performance of the face model constructed by nonuniform resampling is higher than that constructed by uniform resampling.