Mesh resampling alignment for 3D face morphable model
Yongli Hu, Yin Baocai, Sun Yanfeng · 2005
Based on a resampling method, we present a morphable model for 3D face synthesis. The morphable model can reconstruct a 3D face automatically from a facial image by the combination of aligned prototypic 3D faces. But the point-to-point alignment of 3D dense faces is a challenging problem. The optical flow algorithm is used to compute the alignment by cylinder projective facial images. But this algorithm is an approximative and unstable method. We propose a mesh resampling method to do the alignment. Based on the resampling alignment, a 3D face morphable model is constructed. And from the temporary mesh resampling data a multi-resolution model is constructed to accelerate the model matching and improve its convergence stability. The experimental results show the resampling alignment is a contributive method for the morphable model in 3D face synthesis.