Title :
Study of wavelet base and threshold policies impact on the image reconstruction quality based on compressed sensing
Author :
Zhuo Jiang ; Yaolin Huang ; Zhuochao Wang ; Chengjun Xie ; Xinyu He
Author_Institution :
Comput. Sci. & Technol. Coll., Beihua Univ., Jilin, China
Abstract :
The compression sampling scheme is realized, in which sparseness processing is realized in this theme employing wavelet transform; standard pseudo-random number matrix of uniformly distributed sequences and two dimensional central Fourier transform are used for generating random measurement matrix, and algorithm of subsection orthogonal matching pursuit is used for sampling data reconstruction. Influence of wavelet basis and threshold strategy on quality of reconstructed image is researched and elaborate description of the experiment result is provided. The experiment data of this paper provides strong support to optimization of wavelet basis and strategy of threshold selection.
Keywords :
Fourier transforms; compressed sensing; image reconstruction; image sampling; iterative methods; matrix algebra; optimisation; time-frequency analysis; wavelet transforms; Fourier transform; compressed sensing; compression sampling scheme; image reconstruction quality; pseudorandom number matrix; random measurement matrix generation; sparseness processing; subsection orthogonal matching pursuit algorithm; threshold selection strategy; wavelet basis optimization; wavelet transform; Biomedical imaging; Image reconstruction; Interference; Matched filters; PSNR; Sensors; CFAR; compressed sensing; stagewise orthogonal matching pursuit; threshold strategy of hypothesis testing of free distributed FDR;
Conference_Titel :
Mechatronic Sciences, Electric Engineering and Computer (MEC), Proceedings 2013 International Conference on
Conference_Location :
Shengyang
Print_ISBN :
978-1-4799-2564-3
DOI :
10.1109/MEC.2013.6885377