说明：  SFS算法的一篇文章，针对传统SFS( shape fr om shading ) 必须已知光源参数的缺陷, 提出了一种新的使用神经网络恢复单幅未知光源参数环境中物体三维形状的方法。
(SFS algorithm an article, in view of the traditional SFS (shape fr om shading) must be known source parameters of defects, this paper proposes a new environment using neural network to restore a single light source unknown parameters in the method of 3 d shapes.)