555 search results - page 42 / 111 » Sparse Topical Coding |
CCIW
2011
Springer
12 years 11 months ago
2011
Springer
The representation model that considers an image as a sparse linear combination of few atoms of a predefined or learned dictionary has received considerable attention in recent ye...
ICCV
2011
IEEE
12 years 7 months ago
2011
IEEE
As a recently proposed technique, sparse representation based classification (SRC) has been widely used for face recognition (FR). SRC first codes a testing sample as a sparse lin...
ICCV
2009
IEEE
15 years 17 days ago
2009
IEEE
We propose in this paper to unify two different ap-
proaches to image restoration: On the one hand, learning a
basis set (dictionary) adapted to sparse signal descriptions
has p...
ICIP
2008
IEEE
14 years 9 months ago
2008
IEEE
We propose a block-based transform optimization and associated image compression technique that exploits regularity along directional image singularities. Unlike established work,...
PPAM
2007
Springer
14 years 1 months ago
2007
Springer
Abstract. We present an out-of-core sparse direct solver for unsymmetric linear systems. The solver factors the coefficient matrix A into A = PLU using Gaussian elimination with pa...