First, this surface matching method extracts features hierarchically, and then finds the correspondence between feature points, and computing the rigid transformation between the two surfaces to realize the surface matching.

• 该方法所用的特征是曲率值大于给定阈值的网格顶点。 该曲面匹配方法首先分级提取曲面的特征点,然后通过确定特征点之间的对应关系,计算两个曲面间的刚体变换,实现曲面的匹配。