This algorithm makes use of three feature points in the face and minimizing energy function to merge the range images coarsely.Then it applies the improved ICP algorithm to get the 3-D face model.

• 该算法在人工辅助确定特征点的基础上，利用能量函数最小的约束关系实现深度图的初步融合，然后运用改进ICP算法获得隐式的三维人脸模型。