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An Improved Method of Training Overcomplete Dictionary Pair
Joint Authors
Wang, Zhuozheng
Deller, John R.
Jia, Kebin
Zhang, Wenli
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-11-23
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Training overcomplete dictionary pair is a critical step of the mainstream superresolution methods.
For the high time complexity and susceptible to corruption characteristics of training dictionary, an improved method based on lifting wavelet transform and robust principal component analysis is reported.
The high-frequency components of example images are estimated through wavelet coefficients of 3-tier lifting wavelet transform decomposition.
Sparse coefficients are similar in multiframe images.
Accordingly, the inexact augmented Lagrange multiplier method is employed to achieve robust principal component analysis in the process of imposing global constraints.
Experiments reveal that the new algorithm not only reduces the time complexity preserving the clarity but also improves the robustness for the corrupted example images.
American Psychological Association (APA)
Wang, Zhuozheng& Deller, John R.& Jia, Kebin& Zhang, Wenli. 2014. An Improved Method of Training Overcomplete Dictionary Pair. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1044216
Modern Language Association (MLA)
Wang, Zhuozheng…[et al.]. An Improved Method of Training Overcomplete Dictionary Pair. Mathematical Problems in Engineering No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-1044216
American Medical Association (AMA)
Wang, Zhuozheng& Deller, John R.& Jia, Kebin& Zhang, Wenli. An Improved Method of Training Overcomplete Dictionary Pair. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1044216
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1044216