The work flow is described in detail.Moreover, a comparison between traditional and modified image matching algorithm i performed with an ASTER image and a TM image with distinct imaging differences.

• 本文给出具体的实施流程，并结合ASTER和TM两种成像差异显著的图像数据，对优化前后的匹配算法均进行了试验，给出了试验结果和对比分析。