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- W1978102639 abstract "This paper deals with the problem of unsupervised image segmentation which consists in first mixture identification phase and second a Bayesian decision phase. During the mixture identification phase, the conditional probability density function (pdf) and the a priori class probabilities must be estimated. The most difficult part is the estimation of the number of pixel classes or in other words the estimation of the number of density mixture components. To resolve this problem, we propose here a Stochastic and Nonparametric Expectation-Maximization (SNEM) algorithm. The algorithm finds the most likely number of classes, their associated model parameters and generates a segmentation of the image by classifying the pixels into these classes. The non-parametric aspect comes from the use of the orthogonal series estimator. Experimental results are promising, we have obtained accurate results on a variety of real images." @default.
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- W1978102639 date "2007-12-01" @default.
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- W1978102639 title "Unsupervised Bayesian image segmentation using orthogonal series" @default.
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- W1978102639 doi "https://doi.org/10.1016/j.jvcir.2007.05.001" @default.
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