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- W2113156691 abstract "Five clustering techniques are compared by classifying a polarimetric synthetic aperture radar image. The pixels are complex covariance matrices, which are known to have the complex Wishart distribution. Two techniques are fuzzy clustering algorithms based on the standard /spl lscr//sub 1/ and /spl lscr//sub 2/ metrics. Two others are new, combining a robust fuzzy C-means clustering technique with a distance measure based on the Wishart distribution. The fifth clustering technique is an application of the expectation-maximization algorithm assuming the data are Wishart. The clustering algorithms that are based on the Wishart are demonstrably more effective than the clustering algorithms that appeal only to the /spl lscr//sub p/ norms. The results support the conclusion that the pixel model is more important than the clustering mechanism." @default.
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- W2113156691 date "2005-03-01" @default.
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- W2113156691 title "Unsupervised classification of polarimetric synthetic aperture Radar images using fuzzy clustering and EM clustering" @default.
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- W2113156691 doi "https://doi.org/10.1109/tgrs.2004.842108" @default.
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