15 search results - page 1 / 3 » A Fast Algorithm for Sparse Reconstruction Based on Shrinkag... |
SIAMSC
2010
13 years 3 months ago
2010
We propose a fast algorithm for solving the ℓ1-regularized minimization problem minx∈Rn µ x 1 + Ax − b 2 2 for recovering sparse solutions to an undetermined system of linea...
ECCV
2010
Springer
13 years 5 months ago
2010
Springer
Abstract. The sparse representation has been widely used in many areas and utilized for visual tracking. Tracking with sparse representation is formulated as searching for samples ...
ICIP
2009
IEEE
14 years 5 months ago
2009
IEEE
This work focuses on several optimization problems involved in recovery of sparse solutions of linear inverse problems. Such problems appear in many fields including image and sig...
ICMCS
2008
IEEE
13 years 11 months ago
2008
IEEE
We address the problem of keyword spotting in continuous speech streams when training and testing conditions can be different. We propose a keyword spotting algorithm based on spa...
ICIP
2007
IEEE
14 years 6 months ago
2007
IEEE
Discrete tomography (DT) is concerned with the tomographic reconstruction of images that consist of only a small number of gray levels. DT reconstruction problems are usually unde...