Browsing by Subject "Fourier, Transformacions de"

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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 ...
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 ...
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 ...
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 ...

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