Fitting 3D morphable models using implicit representations

Journal of virtual reality and broadcasting

Alessandro Verri¹  Curzio Basso¹ 

[1] Universita de Genova$$

关键词: 3D Morphable Models;    implicit surface representations;    non-rigid registration;   

DOI  :  10.20385/1860-2037/4.2007.18

学科分类：计算机科学（综合）

来源: Di P P - N R W

【 摘 要 】

We consider the problem of approximating the 3D scan of a real object through an affine combination of examples. Common approaches depend either on the explicit estimation of point-to-point correspondences or on 2-dimensional projections of the target mesh; both present drawbacks. We follow an approach similar to [IF03] by representing the target via an implicit function, whose values at the vertices of the approximation are used to define a robust cost function. The problem is approached in two steps, by approximating first a coarse implicit representation of the whole target, and then finer, local ones; the local approximations are then merged together with a Poisson-based method. We report the results of applying our method on a subset of 3D scans from the Face Recognition Grand Challenge v.1.0.

【 授权许可】

Unknown