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An Image Filter Based on Shearlet Transformation and Particle Swarm Optimization Algorithm
Joint Authors
Xia, Min
Hu, Kai
Fan, Zhiyong
Chen, Xiaoying
Zhang, Ruidong
Zheng, Zhichen
Song, Aiguo
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-10-11
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Digital image is always polluted by noise and made data postprocessing difficult.
To remove noise and preserve detail of image as much as possible, this paper proposed image filter algorithm which combined the merits of Shearlet transformation and particle swarm optimization (PSO) algorithm.
Firstly, we use classical Shearlet transform to decompose noised image into many subwavelets under multiscale and multiorientation.
Secondly, we gave weighted factor to those subwavelets obtained.
Then, using classical Shearlet inverse transform, we obtained a composite image which is composed of those weighted subwavelets.
After that, we designed fast and rough evaluation method to evaluate noise level of the new image; by using this method as fitness, we adopted PSO to find the optimal weighted factor we added; after lots of iterations, by the optimal factors and Shearlet inverse transform, we got the best denoised image.
Experimental results have shown that proposed algorithm eliminates noise effectively and yields good peak signal noise ratio (PSNR).
American Psychological Association (APA)
Hu, Kai& Song, Aiguo& Xia, Min& Fan, Zhiyong& Chen, Xiaoying& Zhang, Ruidong…[et al.]. 2015. An Image Filter Based on Shearlet Transformation and Particle Swarm Optimization Algorithm. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1073784
Modern Language Association (MLA)
Hu, Kai…[et al.]. An Image Filter Based on Shearlet Transformation and Particle Swarm Optimization Algorithm. Mathematical Problems in Engineering No. 2015 (2015), pp.1-9.
https://search.emarefa.net/detail/BIM-1073784
American Medical Association (AMA)
Hu, Kai& Song, Aiguo& Xia, Min& Fan, Zhiyong& Chen, Xiaoying& Zhang, Ruidong…[et al.]. An Image Filter Based on Shearlet Transformation and Particle Swarm Optimization Algorithm. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1073784
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1073784