Efficient Projection for Compressed Sensing

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Efficient Projection for Compressed Sensing
Compressed sensing (CS), a joint compression and sensing process, is a emerging field of activity in which the signal is sampled and simultaneously compressed at a greatly reduced rate. In CS, the projection matrix is chosen at random which would lead to inefficient performance of CS. Recently, an optimized projection (OP) was chosen such that it leads to better coherence of the effective dictionary, leading substantially better CS reconstruction performance. This is the only recent work related to the optimization of projection matrix, but the major drawback of this approach is that its algorithm is an iterative and high complexity one. It is considered that an efficient and lightweight algorithm for designing projection matrix would usefully supplement and enhance the performance of CS. In this paper, we propose an algorithm to obtain such an projection matrix called efficient projection (EP) which is designed in such a way that the new projected dictionary will have the structure a...
Vo Dinh Minh Nhat, Duc Vo, Subhash Challa, Sungyou
Added 12 Oct 2010
Updated 12 Oct 2010
Type Conference
Year 2008
Authors Vo Dinh Minh Nhat, Duc Vo, Subhash Challa, Sungyoung Lee
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