说明：  首先简述了图像配准 的一般方法,分为基于图像区域的配准方法和基于图像特征的配准方法, 重点述评了局部不变 特征方法中的 SI FT算法和 SURF算法
(The first outlines the general method of image registration is divided into regions based on image registration method and image-based registration method characteristics, focusing on Review of local invariant features methods SI FT algorithm and SURF algorithm )