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- W2013093770 abstract "Synthetic aperture radar (SAR) images are corrupted by speckle noise due to random interference of electromagnetic waves. In this paper, we proposed a speckle reduction technique based on sparse representation and dictionary learning. Firstly, an adaptive dictionary was learned by performing KSVD algorithm through a large amount of training patches extracted from the noisy SAR image. Considering the inaccurate recovery of point targets which is brought by the inadequate number of training samples, we employed a point target enhancing scheme to highlight the important point targets in the SAR image. Some experiments were conducted on real SAR images, and the results shows that our proposed algorithm can effectively reduce the speckle noise as well as preserve details. Some comparisons are made to prove its superiority to the available algorithms." @default.
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- W2013093770 date "2011-10-01" @default.
- W2013093770 modified "2023-09-27" @default.
- W2013093770 title "Speckle reduction of SAR image through dictionary learning and point target enhancing approaches" @default.
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- W2013093770 doi "https://doi.org/10.1109/cie-radar.2011.6159952" @default.
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