Change detection in remote sensing images becomes more and more important for the last few decades, among them change detection in Synthetic Aperture Radar (SAR) images are having some more difficulties than optical ones due to the fact that SAR images suffer from the presence of the speckle noise. In this paper the Systematic survey of the common processing steps and core decision rules for change detection in SAR images has been carried out. Basically change detection in SAR images is divided in two steps a) Generating difference image & b) Detection of change in difference image, hence in this paper we also discuss various methods to generate difference image along with the change detection algorithm.

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Synthetic Aperture Radar (sar) Difference Image Image Fusion Image Change Detection Algorithms