51 search results - page 4 / 11 » EK-SVD: Optimized dictionary design for sparse representatio... |
TIT
2002
13 years 9 months ago
2002
An elementary proof of a basic uncertainty principle concerning pairs of representations of vectors in different orthonormal bases is provided. The result, slightly stronger than s...
ICASSP
2007
IEEE
14 years 4 months ago
2007
IEEE
Overcomplete representations are attracting interest in image processing theory, particularly due to their potential to generate sparse representations of data based on their morp...
ICIP
2010
IEEE
13 years 7 months ago
2010
IEEE
An image representation framework based on structured sparse model selection is introduced in this work. The corresponding modeling dictionary is comprised of a family of learned ...
TSP
2008
13 years 9 months ago
2008
This article introduces the concept of sensing dictionaries. It presents an alteration of greedy algorithms like thresholding or (Orthogonal) Matching Pursuit which improves their...
CVPR
2012
IEEE
12 years 6 days ago
2012
IEEE
A greedy-based approach to learn a compact and discriminative dictionary for sparse representation is presented. We propose an objective function consisting of two components: ent...