Speckle Reduction for Remote Sensing Images Based on Nonsubsampled Contourlet

Abstract

Existing speckle reduction methods for remote sensing images such as SAR cannot capture image edge detail information and reduce noise effectively at the same time. The nonsubsampled contourlet (NSCT) is built upon nonsubsampled pyramids and nonsubsampled directional filter banks and provides a shift-invariant directional multiresolution image… (More)

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5 Figures and Tables