说明：  本文提出的基于稀疏线性模型的优化算法能够相对准确、稳定地估计出二维特征点的深度信息。将深度估计值应用于形变算法，可以提高人脸的重建精度。
(The proposed model based on sparse linear optimization algorithm is relatively accurate and stable two-dimensional feature points to estimate the depth of information. Estimate the depth of deformation algorithm used, can improve the precision of the reconstruction of the face.)