68 search results - page 3 / 14 » Generalized discrete Fourier transform with nonlinear phase |
DAC
2005
ACM
14 years 8 months ago
2005
ACM
This paper presents a parameterized soft core generator for the discrete Fourier transform (DFT). Reusable IPs of digital signal processing (DSP) kernels are important time-saving...
CVPR
2010
IEEE
13 years 8 months ago
2010
IEEE
We present a simple, fast, and effective method to detect defects on textured surfaces. Our method is unsupervised and contains no learning stage or information on the texture bei...
ICPR
2006
IEEE
14 years 8 months ago
2006
IEEE
Magnetic resonance imaging (MRI) allows numerous Fourier domain sampling schemes such as Cartesian and non-Cartesian trajectories (e.g. Polar, circular, and spherical). On the oth...
JMIV
2011
13 years 2 months ago
2011
When the Discrete Fourier Transform of an image is computed, the image is implicitly assumed to be periodic. Since there is no reason for opposite borders to be alike, the “peri...
STOC
2012
ACM
11 years 9 months ago
2012
ACM
We consider the problem of computing the k-sparse approximation to the discrete Fourier transform of an ndimensional signal. We show: • An O(k log n)-time randomized algorithm f...