将常见的图像配准方法分为基于图像灰度的方法和基于图 像特征的方法两大类。 以此为分类基础， 对国内外现有的图像配准技术和方法进行了分析和评述， 并重点介绍了基于图像特征的配准方法。-The common method for image registration based on image gray into the methods and methods based on image features two categories. As a classification based