Automatic registration of remotely-sensed imagery is a classical problem

and has not been well solved till now.In this paper

SIFT（Scale Invariant Feature Transform） feature

which has shown great success in computer vision

is introduced into image registration in remote sensing.In addition

we also proposed a feature matching approach based on the specific characteristic of the remote sensing imagery.Numerous experiments have been conducted for both aerial and satellite imageries under various conditions such as geometric distortion

illumination variation and different resolution.The results showed that our matching approach performs well

and is stable

reliable and efficient.