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- W2028961524 abstract "This paper proposes a polarimetric homogeneity measurement and applies it to the speckle filtering of polarimetric synthetic aperture radar (PolSAR) data. First, a line-and-edge (LAE) detector that can detect both the lines and edges in one scan is developed based on the traditional edge detector. A polarimetric homogeneity measurement is then derived by combining the equivalent number of looks and the LAE maps and is used to distinguish the homogeneous and heterogeneous regions. Finally, a new adaptive-window PolSAR filtering algorithm based on the LAE detector and the polarimetric homogeneity measurement is proposed. The proposed speckle filter adjusts the filtering windows in both shape and size, based on the homogeneity and gradient information. Consequently, it uses small and nonsquare windows in heterogeneous regions to preserve the detail information and uses large and square windows in homogeneous regions to maximize the suppression of speckle noise. EMISAR and ESAR L-band PolSAR data were used to demonstrate the effectiveness of the proposed filter in speckle suppression, detail preservation, and polarimetric information preservation." @default.
- W2028961524 created "2016-06-24" @default.
- W2028961524 creator A5070369693 @default.
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- W2028961524 date "2015-10-01" @default.
- W2028961524 modified "2023-10-13" @default.
- W2028961524 title "Adaptive-Window Polarimetric SAR Image Speckle Filtering Based on a Homogeneity Measurement" @default.
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- W2028961524 doi "https://doi.org/10.1109/tgrs.2015.2422737" @default.
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