133 search results - page 14 / 27 » Simple and practical algorithm for sparse Fourier transform |
ECCC
2006
13 years 7 months ago
2006
Detecting the relevant attributes of an unknown target concept is an important and well studied problem in algorithmic learning. Simple greedy strategies have been proposed that s...
DCC
2003
IEEE
14 years 7 months ago
2003
IEEE
Practical applications that employ entropy coding for large alphabets often partition the alphabet set into two or more layers and encode each symbol by using some suitable prefix...
ICIP
2009
IEEE
14 years 8 months ago
2009
IEEE
In this paper, we propose a fast image deconvolution algorithm that combines adaptive block thresholding and Vaguelet-Wavelet Decomposition. The approach consists in first denoisi...
CVPR
2008
IEEE
14 years 1 months ago
2008
IEEE
We present a novel and effective algorithm for rotation symmetry group detection from real-world images. We propose a frieze-expansion method that transforms rotation symmetry gro...
ICIP
2001
IEEE
14 years 9 months ago
2001
IEEE
We present a new family of 2D orthogonal wavelets which uses quincunx sampling. The orthogonal refinement filters have a simple analytical expression in the Fourier domain as a fu...