DocumentCode
1526959
Title
Information Theoretical and Algorithmic Approaches to Quantized Compressive Sensing
Author
Dai, Wei ; Milenkovic, Olgica
Author_Institution
Dept. of Electr. & Electron. Eng., Imperial Coll. London, London, UK
Volume
59
Issue
7
fYear
2011
fDate
7/1/2011 12:00:00 AM
Firstpage
1857
Lastpage
1866
Abstract
We study the average distortion introduced by scalar, vector, and entropy coded quantization of compressive sensing (CS) measurements. The asymptotic behavior of the underlying quantization schemes is either quantified exactly or characterized via bounds. We adapt two benchmark CS reconstruction algorithms to accommodate quantization errors, and empirically demonstrate that these methods significantly reduce the reconstruction distortion when compared to standard CS techniques.
Keywords
data compression; distortion; signal reconstruction; vector quantisation; CS reconstruction algorithms; entropy coded quantization; quantized compressive sensing; reconstruction distortion; scalar coded quantization; vector quantization; Distortion; Distortion measurement; Encoding; Quantization; Rate distortion theory; Reconstruction algorithms; Upper bound; Compressive sensing; distortion rate function; quantization; subspace pursuit;
fLanguage
English
Journal_Title
Communications, IEEE Transactions on
Publisher
ieee
ISSN
0090-6778
Type
jour
DOI
10.1109/TCOMM.2011.051711.100204
Filename
5773638
Link To Document