756 search results - page 33 / 152 » Quantization of Sparse Representations |
ICIP
2003
IEEE
14 years 9 months ago
2003
IEEE
Classical linear wavelet representations of images have the drawback that they are not well-suited to represent edge information. To overcome this problem, nonlinear multiresoluti...
TSP
2010
13 years 2 months ago
2010
Abstract--An efficient and flexible dictionary structure is proposed for sparse and redundant signal representation. The proposed sparse dictionary is based on a sparsity model of ...
ICPR
2010
IEEE
14 years 1 months ago
2010
IEEE
Given a sequence of observable features of a linear dynamical system (LDS), we propose the problem of finding a representation of the LDS which is sparse in terms of a given dict...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
A key problem in using the output of an auditory model as the input to a machine-learning system in a machine-hearing application is to find a good feature-extraction layer. For ...
CORR
2007
Springer
13 years 7 months ago
2007
Springer
We consider signals and operators in finite dimension which have sparse time-frequency representations. As main result we show that an S-sparse Gabor representation in Cn with re...