一种新的基于大小点分块编码方法来实现图像对中特征点的匹配, 首先对大点进行自动识别和编码, 然后实现区域内小点的自动编码。对石膏像面部的实验表明基于大小点的分块匹配算法能够有效地实现特征点的自动匹配。-A new point based on the size of block coding to achieve the image of the feature points of the match, the first major point of automatic identification and coding, and then a small point within the region to achieve the automatic encoding. Experimental results show that the face of plaster the size of points based on block matching algorithm can effectively achieve the automatic matching feature points.