说明：  主要内容是讲述图像配准的，集中讲述了图像配准的基本方法，内容上分为几大块，分割，特征提取等。我不知道以前有没有上传过
(Main content is about image registration, focus on the basic method of image registration, the content is divided into several large pieces, segmentation, feature extraction, etc.)