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On low order moments of the homodyned-K distribution
Marcos Martín-Fernández1, Carlos Alberola-López
1Laboratorio de Procesado de Imagen ETSI Telecomunicación, Universidad de Valladolid, Campus Miguel Delibes s/n, 47011 Valladolid, Spain. marcma@tel.uva.es
Abstract:
Fractional low order moments have been reported as beneficial for sampling computations using the K distribution. However, it has been recently pointed out that this it not the case for the homodyned-K distribution for a tissue discrimination problem. In this paper we show that such an statement is not fully justified. To that end, we follow a standard pattern recognition procedure both to determine class separability measures and to classify data with several classifiers. We conclude that the optimum order of the moments is intimately linked to the specific statistical properties of the tissues to be discriminated. Some ideas on how to choose the optimum order are discussed.
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