Remote sensing image registration algorithm based on SIFT

To resolve multi-sensor remote sensing image registration,an method based on scale invariant features transformCSIFT)is proposed. First,the local invariant features of images are extracted,Ratio of the first and the second nearest neighbor distance with mutual correspondence constraint is used to setup the initial correspondences. Then,Random Sample Concensus algorithm is used to remove the mismatched feature points. Experiments demonstrate automatic registration of multi-sensor remote sensing images and images with different resolutions can be achived.