Abstract. Wavelet derived codification techniques are widespread used in image codifiers. The wavelet based compression methods are adequate for representing transients. In this paper we explore the use of the discrete ...

L'objectiu d'aquesta tesi és contribuir a trobar mètodes d’eliminació de soroll en imatges de ressonància magnètica funcional, que difereixin dels tradicionals i que permetin una major extracció d’informació durant el ...

Avui en dia no es poden entendre els canvis socials sense pensar en les conseqüències derivades del nou paradigma digital de comunicació (Castells, 2003). Les Tecnologies de la Informació i la Comunicació (TIC) s’han ...

Several clinical studies have reported that EEG synchrony is affected by Alzheimer’s disease (AD). In this paper a frequency band analysis of AD EEG signals is presented, with the aim of improving the diagnosis of AD using ...

Seguiment de la classe mitjaçant DimDim

In this paper the use of electroencephalogram (EEG) as biometric identifier is investigated. The use of EEG within the biometric framework has already been introduced in the recent past although it has not been extensively ...

EEG recordings are usually corrupted by spurious extra-cerebral artifacts, which should be rejected or cleaned up by the practitioner. Since manual screening of human EEGs is inherently error prone and might induce experimental ...

In this work we explore the multivariate empirical mode decomposition combined with a Neural Network classifier as technique for face recognition tasks. Images are simultaneously decomposed by means of EMD and then the ...

The problem of blind inversion of Wiener systems can be considered as a special case of blind separation of post-nonlinear instantaneous mixtures. In this paper, we present an approach for nonlinear deconvolution of one ...