Sparse and redundant representations

Compressed-Sensingisarecentbranchthatseparatedfromsparseandredundantrepresentations,becomingacenterofinterestofitsown.Exploitingsparserepresentationofsignals,theirsamplingcanbemadefarmoreeectivecomparedtotheclassicalNyquist-Shannonsampling.Inarecentworkthatemergedin2006byEmmanuelCande