Polynomial rectify is usually used for relative correction technology of multi - source remote sensing data. It is simple but inefficient. Based on image matching, a local correction technology of image to image is introduced in this paper. This local correction technology includes histogram matching, characteristic point extraction, image matching and processing, etc. So it is used for multi - source data registration. From many times experiments, it is showing that this technology is useful to realize precision matching for multi - source data (TM images, SPOT images, aerial photo) at different time. And its registration error can be decreased to the level of sub - pixel accuracy.
histogram matchingextraction of characteristic pointimage matchinglocal correction
NETL
NSTL
维普
万方数据
