47 search results - page 8 / 10 » Dictionary Optimization for Block-Sparse Representations |
ICIP
2009
IEEE
15 years 10 months ago
2009
IEEE
Sparse Orthonormal Transforms (SOT) has recently been proposed as a data compression method that can achieve sparser representations in transform domain. Given initial conditions,...
DCC
2001
IEEE
15 years 9 months ago
2001
IEEE
This paper studies quantization error in the context of Matching Pursuit coded streams and proposes a new coefficient quantization scheme taking benefit of the Matching Pursuit pr...
MICCAI
2008
Springer
15 years 10 months ago
2008
Springer
In this paper we introduce a tag separation method for better cardiac boundary segmentation and tag tracking. Our approach is based on two observations in the cardiac tagged MR ima...
ICASSP
2011
IEEE
14 years 1 months ago
2011
IEEE
Consider the decomposition of a signal into features that undergo transformations drawn from a continuous family. Current methods discretely sample the transformations and apply s...
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ECCV
2010
Springer
14 years 7 months ago
2010
Springer
Visual tracking is one of the central problems in computer vision. A crucial problem of tracking is how to represent the object. Traditional appearance-based trackers are using inc...