Gribonval R, Nielsen M: Sparse decompositions in unions of bases. IEEE Trans Inf Theory. 2003, 49: 3320-3325. 10.1109/TIT.2003.820031. Article Google Scholar Tropp JA, Gilbert AC, Muthukrishnan S, Strauss MJ: Improved sparse approximation over quasi-incoherent dictionaries. Proc 2003 IEEE Int...
Random models for sparse signals expansion on unions of bases with application to audio signals - Kowalski, Torr茅sani - 2008 () Citation Context ...his kind of structured modeling with Email address: kowalski@cmi.univ-mrs.fr Phone: +33-(0)491054743 Fax: +33-(0)491054742 (Matthieu ...
Sparsity assumption is the basis of compressed sensing. It has a crucial role in our proposed method of image encryption. The goal of compressed sensing is to recover an unknown sparse signal\({\mathbf{s}} \in R^{m}\)from a set of underdetermined measurements\({\mathbf{y}} = {\mathbf...