187 search results - page 11 / 38 » Directional wavelet transforms and frames |
QCQC
1998
Springer
13 years 12 months ago
1998
Springer
The quantum Fourier transform (QFT), a quantum analog of the classical Fourier transform, has been shown to be a powerful tool in developing quantum algorithms. However, in classi...
ISCAS
2007
IEEE
14 years 2 months ago
2007
IEEE
— In this paper, a modified version of the complex directional pyramid (PDTDFB) is proposed. Unlike the previous approach, the new FB provides an approximately tight-frame decom...
IJCV
2007
13 years 7 months ago
2007
Abstract. Inspired by the early visual system of many mammalians we consider the construction of-and reconstruction from- an orientation score Uf : R2 ×S1 → C as a local orienta...
ICIP
2006
IEEE
14 years 1 months ago
2006
IEEE
In this paper, we propose an efficient hierarchical method for extracting invariant texture features using the Gabor wavelets and Radon transform parameters. The proposed method a...
DCC
2010
IEEE
14 years 2 months ago
2010
IEEE
Block-based random image sampling is coupled with a projectiondriven compressed-sensing recovery that encourages sparsity in the domain of directional transforms simultaneously wi...