Method for coherent detection of changes occurring on area of land between two synthetic aperture radar image acquisitions, involves detecting changes on coherence images of coarsest resolution among resolutions of image coherences

摘要

The method (30) involves calculating image coherences for several different resolutions of synthetic aperture radar (SAR) images (33), and averaging differences of phases between two SAR images based on amplitude information. Changes on coherence images of coarsest resolution are detected (36) among various resolutions of image coherences, and the changes are propagated (37) with a coherence image of resolution finer than coherence of the coarsest resolution images among the various resolutions of image coherence.