Search Results for author: Gustavo Camps-Valls

Found 7 papers, 1 papers with code

Image Denoising with Kernels based on Natural Image Relations

no code implementations31 Jan 2016 Valero Laparra, Juan Gutiérrez, Gustavo Camps-Valls, Jesús Malo

In this paper, we propose an alternative non-explicit way to take into account the relations among natural image wavelet coefficients for denoising: we use support vector regression (SVR) in the wavelet domain to enforce these relations in the estimated signal.

Image Denoising

Iterative Gaussianization: from ICA to Random Rotations

7 code implementations IEEE Transactions on Neural Networks 2011 Valero Laparra, Gustavo Camps-Valls, Jesús Malo

The practical performance of RBIG is successfully illustrated in a number of multidimensional problems such as image synthesis, classification, denoising, and multi-information estimation.

Denoising Image Generation

Nonlinearities and Adaptation of Color Vision from Sequential Principal Curves Analysis

no code implementations31 Jan 2016 Valero Laparra, Sandra Jiménez, Gustavo Camps-Valls, Jesús Malo

Here we address the simultaneous statistical explanation of (i) the nonlinear behavior of achromatic and chromatic mechanisms in a fixed adaptation state, and (ii) the change of such behavior.

A Unified SVM Framework for Signal Estimation

no code implementations21 Nov 2013 José Luis Rojo-Álvarez, Manel Martínez-Ramón, Jordi Muñoz-Marí, Gustavo Camps-Valls

On the one hand, the signal model equation is written in reproducing kernel Hilbert spaces (RKHS) using the well-known RKHS Signal Model formulation, and Mercer's kernels are readily used in SVM non-linear algorithms.

Time Series Analysis

On the Suitable Domain for SVM Training in Image Coding

no code implementations18 Oct 2013 Gustavo Camps-Valls, Juan Gutiérrez, Gabriel Gómez-Pérez, Jesús Malo

We analytically demonstrate that no linear domain fulfills this condition because of the statistical and perceptual inter-coefficient relations that exist in these domains.

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