144 search results - page 22 / 29 » Sparsity in time-frequency representations |
ICIP
2008
IEEE
15 years 11 months ago
2008
IEEE
Multispectral scene information is useful for radiometric graphics, material identification and imaging systems simulation. The multispectral scene can be described as a datacube,...
ICIP
2005
IEEE
15 years 11 months ago
2005
IEEE
In spite of the success of the standard wavelet transform (WT) in image processing, the efficiency of its representation is limited by the spatial isotropy of its basis functions ...
ICIP
2002
IEEE
15 years 11 months ago
2002
IEEE
This paper describes an expectation-maximization (EM) algorithm for wavelet-based image restoration (deconvolution). The observed image is assumed to be a convolved (e.g., blurred...
165
click to vote
ICDE
2004
IEEE
15 years 11 months ago
2004
IEEE
Data cube computation and representation are prohibitively expensive in terms of time and space. Prior work has focused on either reducing the computation time or condensing the r...
ICML
2004
IEEE
15 years 10 months ago
2004
IEEE
Many difficult visual perception problems, like 3D human motion estimation, can be formulated in terms of inference using complex generative models, defined over high-dimensional ...