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 :
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