160 search results - page 12 / 32 » On the diagonalization of the discrete Fourier transform |
TCOM
2008
13 years 7 months ago
2008
Recently, the advantages of the discrete cosine transform (DCT) based orthogonal frequency-division multiplexing (OFDM) have come to the light. We thus consider DCTOFDM with non-ci...
CVPR
2010
IEEE
14 years 3 months ago
2010
IEEE
In this paper we propose a framework for gradient descent
image alignment in the Fourier domain. Specifically,
we propose an extension to the classical Lucas & Kanade
(LK) a...
CORR
2007
Springer
13 years 7 months ago
2007
Springer
We present algorithms for the discrete cosine transform (DCT) and discrete sine transform (DST), of types II and III, that achieve a lower count of real multiplications and additi...
ICIP
2007
IEEE
14 years 9 months ago
2007
IEEE
In this paper, we discuss the application of the two-dimensio- nal paired representation for processing medical images. This representation leads to the effective solution of the ...
CISS
2008
IEEE
14 years 1 months ago
2008
IEEE
—This paper improves on the best-known runtime and measurement bounds for a recently proposed Deterministic sublinear-time Sparse Fourier Transform algorithm (hereafter called DS...