A New Speckle Reduction Algorithm for SAR Imagery
Yi Zhang · Dianzi qijian · 2010
A new adaptive windowing algorithm for speckle filtering of SAR imagery is proposed,to solve the dilemma of window size associated with the classical local statistics adaptive filter.Based on the statistical characteristics of SAR images,the window size is automatically adjusted according to regional characteristics to suppress speckle noise as much as possible while preserving fine details.As far as possible to adjust the window that contains the same homogeneous region.In our experiment,this new method is proved both performance in reducing speckle noise in SAR images and enhancing edges and details at the same time.Moreover,the filtered SAR images have good visual effect.