13 search results - page 1 / 3 » Nonequispaced Hyperbolic Cross Fast Fourier Transform |
SIAMNUM
2010
13 years 5 months ago
2010
A straightforward discretisation of problems in d spatial dimensions often leads to an exponential growth in the number of degrees of freedom. Thus, even efficient algorithms like ...
BILDMED
2008
14 years 10 days ago
2008
We propose a method, which treats metal artifact reduction in CT by sinogram restoration as a problem of scattered data interpolation. Corrupted sinogram entries are discarded and ...
ICIP
2010
IEEE
13 years 8 months ago
2010
IEEE
The Fast Fourier Transform (FFT) allows the Discrete Time Fourier Transform (DTFT) to be efficiently sampled on a uniform grid in frequency. In many applications, including Magnet...
JOT
2010
13 years 9 months ago
2010
This paper is part 6 in a series of papers about the Discrete Fourier Transform (DFT) and the Inverse Discrete Fourier Transform (IDFT). The focus of this paper is on correlation....
ICASSP
2011
IEEE
13 years 2 months ago
2011
IEEE
Sparse recovery techniques have been shown to produce very accurate acoustic images, significantly outperforming traditional deconvolution approaches. However, so far these propo...