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Mostrando ítems 1-13 de 13

A contour based approach for bilateral mammogram registration using discrete wavelet analysis

Reig Bolaño, Ramon; Parisi Baradad, Vicenç; Martí i Puig, Pere (Springer, 2009)

Registration of mammograms is an essential step to increase the effectiveness of all screening programs planned to early detect breast cancer in asymptomatic women. New techniques based on data fusion of different spatial ...
A family of fast walsh hadamard algorithms with identical sparse matrix factorization

Martí i Puig, Pere (IEEE, 2006)

In this letter, we present a family of fast Walsh Hadamard transform algorithms that have an identical and iterative stage factorization. We show the transform factorization in terms of identical sparse matrices that ...
Algoritmos interactivos para la separación de fuentes y deconvolución de canal mediante Java

Jiménez Reifs, David; Solé-Casals, Jordi; Jutten, Christian (2000)

El objetivo de estos programas es crear una herramienta que nos permita, de una manera fácil, entender mejor la separación de fuentes y la deconvolución de canal . Por eso se presenta el diseño, mediante Java, de una ...
Art generatiu. Estudi entorn la complexitat des de la pràctica artística amb codi

Carreras, Anna (Universitat de Vic - Universitat Central de Catalunya, 25-01-2024)

La pràctica artística d'aquesta tesi, l'art generatiu, usa instruccions de codi informàtic i algoritmes per crear obres d'art. S'imaginen i construeixen sistemes –formats per elements gràfics amb certs comportaments i ...
Coherency and sharpness measures by using ICA algorithms. An investigation for Alzheimer’s disease discrimination

Solé-Casals, Jordi; Vialatte, François B.; Chen, Zhe; Cichocki, Andrej (Springer, 2009)

In this paper, we present a comprehensive study of different Independent Component Analysis (ICA) algorithms for the calculation of coherency and sharpness of electroencephalogram (EEG) signals, in order to investigate ...
Detector de contorns basat en el domini transformat

Martí i Puig, Pere (04-02-2009)

RESUM En aquest document es presenta un detector de contorns d’imatges basat en el domini transformat. A partir de la interpretació de la transformada de Fourier de la imatge i la seva formulació matricial en termes dels ...
Investigation of ICA algorithms for feature extraction of EEG signals in discrimination of Alzheimer disease

Solé-Casals, Jordi; Vialatte, François B.; Chen, Zhe; Cichocki, Andrej (2008)

In this paper we present a quantitative comparisons of different independent component analysis (ICA) algorithms in order to investigate their potential use in preprocessing (such as noise reduction and feature extraction) the ...
Machine Learning Model for Predicting Mortality Risk in Patients With Complex Chronic Conditions: Retrospective Analysis

Hernández Guillamet, Guillem; Morancho Pallaruelo, Ariadna Ning; Miró Mezquita, Laura; Miralles, Ramón; Mas, Miquel Àngel; Ulldemolins Papaseit, María José; Estrada Cuxart, Oriol; López Seguí, Francesc (JMIR Publications, 2023)

Background: The health care system is undergoing a shift toward a more patient-centered approach for individuals with chronic and complex conditions, which presents a series of challenges, such as predicting hospital needs ...
New FFT/IFFT Factorizations with Regular Interconnection Pattern Stage-to-Stage Subblocks

Martí i Puig, Pere (Universitat de Vic, 02-04-2008)

Les factoritzacions de la FFT (Fast Fourier Transform) que presenten un patró d’interconnexió regular entre factors o etapes son conegudes com algorismes paral·lels, o algorismes de Pease, ja que foren originalment proposats ...
Nueva metodología matricial para la transparencia algorítmica en el equilibrado de líneas de ensamblaje utilizando algoritmos genéticos

Anel Gracia, Juan Ignacio (Universitat de Vic - Universitat Central de Catalunya, 18-07-2022)

Aquesta tesi s'emmarca en plantejar millores en l'ús d’algorismes d'optimització per resoldre el problema de l'equilibratge de les línies de muntatge per part de petites i mitjanes empreses (pimes). El personal encarregat ...
Radix-R FFT and IFFT factorizations for parallel implementation

Martí i Puig, Pere; Reig Bolaño, Ramon; Parisi Baradad, Vicenç (Springer, 2009)

Two radix-R regular interconnection pattern families of factorizations for both the FFT and the IFFT -also known as parallel or Pease factorizations- are reformulated and presented. Number R is any power of 2 and N, the ...
Rapid prototyping with the visual data environment of an OFDM WLAN system

Serra i Serra, Moisès; Martí i Puig, Pere; Carrabina, Jordi (SPIE, 2005)

In this paper a rapid prototyping design flow is presented and applied to a prototype of the base-band physical layer of a Hiperlan/2 WLAN transceiver. This physical layer is a high performance multi-rate system that contains ...
Two Families of Radix-2 FFT Algorithms With Ordered Input and Output Data

Martí i Puig, Pere (IEEE, 2009)

Two radix-2 families of fast Fourier transform (FFT) algorithms that have the property that both inputs and outputs are addressed in natural order are derived in this letter. The algorithms obtained have the same ...

Mostrando ítems 1-13 de 13

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ListarRecerca por tema "Algorismes"

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