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http://dx.doi.org/10.5573/ieek.2013.50.4.155

Variable Block Size for Performance Improvement of Compressed Sensing  

Ham, Woo-Gyu (Dept. of Electronics Engineering, Kwangwoon University)
Ku, Jaseong (Dept. of Electronics Engineering, Kwangwoon University)
Ahn, Chang-Beom (Dept. of Electrical Engineering, Kwangwoon University)
Park, Hochong (Dept. of Electronics Engineering, Kwangwoon University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.50, no.4, 2013 , pp. 155-162 More about this Journal
Abstract
The conventional block-based compressed sensing uses a fixed block size for signal reconstruction, and the reconstructed signal is degraded because the block size suitable to the signal characteristics is not used. To solve this problem, in this paper, a variable block size method for compressed sensing is proposed that estimates the signal characteristics and selects a proper block size for each frame, thereby improving the quality of the reconstructed signal. The proposed method reconstructs the signal with different block sizes, analyzes the signal characteristics using correlation coefficients for each frame, and select the block size for the frame. It is confirmed that, with the same acquired data, the proposed method reconstructs the signal of higher quality than the conventional fixed block size method.
Keywords
압축 센싱;신호 복원;가변 블록 크기;자기 상관도;
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Times Cited By KSCI : 1  (Citation Analysis)
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