266 search results - page 1 / 54 » New algorithms for computing directional discrete Fourier tr... |
ICIP
2001
IEEE
14 years 5 months ago
2001
IEEE
New algorithms for computing the Discrete Fourier Transform (DFT) spectra along different directions are derived and implemented. For computing the DFT spectrum along any given di...
Book
"The Discrete Fourier Transform (DFT) can be understood as a numerical approximation to the Fourier transform. However, the DFT has its own exact Fourier theory, which is the ...
TSP
2008
13 years 4 months ago
2008
Abstract--We deal with the problem of efficient and accurate digital computation of the samples of the linear canonical transform (LCT) of a function, from the samples of the origi...
SIPS
2008
IEEE
13 years 10 months ago
2008
IEEE
In this paper we present an efficient way of doing image reconstruction using the 2D Discrete Fourier transform (DFT). We exploit the fact that in the frequency domain, informati...
CORR
2008
Springer
13 years 4 months ago
2008
Springer
We exhibit a canonical basis of eigenvectors for the discrete Fourier transform (DFT). The transition matrix from the standard basis to defines a novel transform which we call ...