130 search results - page 12 / 26 » Wavelet based preconditioners for sparse linear systems |
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
In this paper, we propose a new algorithm, TLS-FOCUSS, for sparse recovery for large underdetermined linear systems, based on total least square (TLS) method and FOCUSS(FOCal Unde...
PC
2008
13 years 8 months ago
2008
Traditional large sparse linear solvers are not suited in a grid computing environment as they require a large amount of synchronization and communication penalizing the performan...
ICIP
2005
IEEE
14 years 9 months ago
2005
IEEE
We describe a framework for decomposing the distortion between two images into a linear combination of components. Unlike conventional linear bases such as those in Fourier or wav...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
This paper presents a unified model for image editing in terms of Sparse Matrix-Vector (SpMV) multiplication. In our framework, we cast image editing as a linear energy minimizat...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
Compressive sensing (CS) is a new approach for the acquisition and recovery of sparse signals that enables sampling rates significantly below the classical Nyquist rate. Based on...