Title :
Bayesian Pursuit algorithm for sparse representation
Author :
Zayyani, H. ; Babaie-Zadeh, M. ; Jutten, C.
Author_Institution :
Dept. of Electr. Eng. & Adv. Commun., Sharif Univ. of Technol., Tehran
Abstract :
In this paper, we propose a Bayesian pursuit algorithm for sparse representation. It uses both the simplicity of the pursuit algorithms and optimal Bayesian framework to determine active atoms in sparse representation of a signal. We show that using Bayesian Hypothesis testing to determine the active atoms from the correlations leads to an efficient activity measure. Simulation results show that our suggested algorithm has better performance among the algorithms which have been implemented in our simulations in most of the cases.
Keywords :
Bayes methods; correlation methods; signal representation; sparse matrices; statistical testing; Bayesian hypothesis testing; Bayesian pursuit algorithm; active atom; correlation method; sparse matrix; sparse signal representation; Atomic measurements; Bayesian methods; Collaborative work; Compressed sensing; Dictionaries; Iterative algorithms; Matching pursuit algorithms; Pursuit algorithms; Signal processing algorithms; Sparse matrices; Compressed Sensing (CS); Pursuit algorithms; Sparse Component Analysis (SCA); Sparse representation;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2009. ICASSP 2009. IEEE International Conference on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-2353-8
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2009.4959892