Journal on Communications ›› 2019, Vol. 40 ›› Issue (1): 43-50.doi: 10.11959/j.issn.1000-436x.2019015

• Papers • Previous Articles     Next Articles

Nonparametric Bayesian dictionary learning algorithm based on structural similarity

Daoguang DONG,Guosheng RUI,Wenbiao TIAN,Jian KANG,Ge LIU   

  1. Signal and Information Processing Key Laboratory in Shandong,Navy Aviation University,Yantai 264001,China
  • Revised:2018-12-31 Online:2019-01-01 Published:2019-02-03
  • Supported by:
    The National Natural Science Foundation of China(41606117);The National Natural Science Foundation of China(41476089);The National Natural Science Foundation of China(61671016)

Abstract:

Though nonparametric Bayesian methods possesses significant superiority with respect to traditional comprehensive dictionary learning methods,there is room for improvement of this method as it needs more consideration over the structural similarity and variability of images.To solve this problem,a nonparametric Bayesian dictionary learning algorithm based on structural similarity was proposed.The algorithm improved the structural representing ability of dictionaries by clustering images according to their non-local structural similarity and introducing block structure into sparse representing of images.Denoising and compressed sensing experiments showed that the proposed algorithm performs better than several current popular unsupervised dictionary learning algorithms.

Key words: nonparametric Bayesian, dictionary learning, structural similarity, denoising, compressed sensing

CLC Number: 

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