关键词: 三维重构, SFS, 参数估计, 变分法, 分层算法

Abstract: This paper introduces the estimation of parameters and the implementation of a SFS algorithm. Taking into consideration of the effect of self-shading, it can effectively estimate the control parameters used in the SFS algorithms. It implements the brightness constraint, the intensity gradient constraint and the integrability constraint to compute the surface height and orientation and to reconstruct the surface shape. It finally mentions some problems that should be paid attention to in Matlab.

Key words: 3D reconstruction, SFS, estimation of parameters, variational calculus, hierarchical algorithm