Search Results for author: Juan Gutiérrez

Found 3 papers, 0 papers with code

Bi-traceable graphs, the intersection of three longest paths and Hippchen's conjecture

no code implementations19 Jan 2021 Juan Gutiérrez, Christian Valqui

We use the results for all the possible configurations of the intersection points when $\#V(P)\cap V(Q)\le 5$ in order to prove that if the intersection of three longest paths $P, Q, R$ is empty, then $\#(V(P)\cap V(Q))\ge 6$.

Combinatorics 05C38 (primary) 05C45 (secondary)

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

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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