Image Denoising Algorithm Combined with SGK Dictionary Learning and Principal Component Analysis Noise Estimation
Joint Authors
Zhao, Wenjing
Chi, Yue
Zhou, Yatong
Zhang, Cheng
Source
Mathematical Problems in Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-03-14
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
SGK (sequential generalization of K-means) dictionary learning denoising algorithm has the characteristics of fast denoising speed and excellent denoising performance.
However, the noise standard deviation must be known in advance when using SGK algorithm to process the image.
This paper presents a denoising algorithm combined with SGK dictionary learning and the principal component analysis (PCA) noise estimation.
At first, the noise standard deviation of the image is estimated by using the PCA noise estimation algorithm.
And then it is used for SGK dictionary learning algorithm.
Experimental results show the following: (1) The SGK algorithm has the best denoising performance compared with the other three dictionary learning algorithms.
(2) The SGK algorithm combined with PCA is superior to the SGK algorithm combined with other noise estimation algorithms.
(3) Compared with the original SGK algorithm, the proposed algorithm has higher PSNR and better denoising performance.
American Psychological Association (APA)
Zhao, Wenjing& Chi, Yue& Zhou, Yatong& Zhang, Cheng. 2018. Image Denoising Algorithm Combined with SGK Dictionary Learning and Principal Component Analysis Noise Estimation. Mathematical Problems in Engineering،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1205532
Modern Language Association (MLA)
Zhao, Wenjing…[et al.]. Image Denoising Algorithm Combined with SGK Dictionary Learning and Principal Component Analysis Noise Estimation. Mathematical Problems in Engineering No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1205532
American Medical Association (AMA)
Zhao, Wenjing& Chi, Yue& Zhou, Yatong& Zhang, Cheng. Image Denoising Algorithm Combined with SGK Dictionary Learning and Principal Component Analysis Noise Estimation. Mathematical Problems in Engineering. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1205532
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1205532