影像匹配技术是一门迅速发展的图像处理技术，在图像镶嵌，图像融合，军事侦察等领域有广泛应用。影像匹配就是将图像归一化到统一的坐标系统中去，将两幅图像或者图像与地图进行空间对准，进而将两幅图像拼接在一起，其主要分为空间域和频率域匹配两大部分。笔者对该领域的经典方法进行了总结归纳，并从原理和性能上对各种算法进行了对比分析，指出各算法在影像匹配中的优势及存在的问题。%Image matching is a fast developing technique in image processing. It is widely used in the field of image mosaicking, image fusion, military and so on. Image matching is a technique which aims to make two or more images into one system and make them as one picture that covers a large region. These technologies are divided into two categories： spatialdomain and frequency domain. This essay mainly focused on the classical methods of the image matching on the base of drawing lessons from the research results of predecessors, compared different methods from aspects of principles and registration performance and put forward the advantages and disadvantages of each methods.
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