Support vector domain description
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ICA using spacings estimates of entropy
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A Projection Pursuit Algorithm for Exploratory Data Analysis
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On the Suitable Domain for SVM Training in Image Coding
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Fast and robust fixed-point algorithms for independent component analysis
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NOLISP'09 Proceedings of the 2009 international conference on Advances in Nonlinear Speech Processing
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The estimation of high-dimensional probability density functions (PDFs) is not an easy task for many image processing applications. The linear models assumed by widely used transforms are often quite restrictive to describe the PDF of natural images. In fact, additional non-linear processing is needed to overcome the limitations of the model. On the contrary, the class of techniques collectively known as projection pursuit, which solve the high-dimensional problem by sequential univariate solutions, may be applied to very general PDFs (e.g. iterative Gaussianization procedures). However, the associated computational cost has prevented their extensive use in image processing. In this work, we propose a fast alternative to iterative Gaussianization methods that makes it suitable for image processing while ensuring its theoretical convergence. Method performance is successfully illustrated in image synthesis and classification problems.