High-Resolution SAR Image Despeckling Based on Nonlocal Means Filter and Modified AA Model
Joint Authors
Ke, Qiao
Zeng-guo, Sun
Woźniak, Marcin
Scherer, Rafał
Liu, Yang
Wei, Wei
Source
Security and Communication Networks
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-11-29
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Information Technology and Computer Science
Abstract EN
A new speckle suppression algorithm is proposed for high-resolution synthetic aperture radar (SAR) images.
It is based on the nonlocal means (NLM) filter and the modified Aubert and Aujol (AA) model.
This method takes the nonlocal Dirichlet function as a linear regularization item, which constructs the weight by measuring the similarity of images.
Then, a new despeckling model is introduced by combining the regularization item and the data item of the AA model, and an iterative algorithm is proposed to solve the new model.
The experiments show that, compared with the AA model, the proposed model has more effective performance in suppressing speckle; namely, ENL and DCV measures are 21.75% and 4.5% higher, respectively, than for NLM.
Moreover, it also has better performance in keeping the edge information.
American Psychological Association (APA)
Ke, Qiao& Zeng-guo, Sun& Liu, Yang& Wei, Wei& Woźniak, Marcin& Scherer, Rafał. 2020. High-Resolution SAR Image Despeckling Based on Nonlocal Means Filter and Modified AA Model. Security and Communication Networks،Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1208879
Modern Language Association (MLA)
Ke, Qiao…[et al.]. High-Resolution SAR Image Despeckling Based on Nonlocal Means Filter and Modified AA Model. Security and Communication Networks No. 2020 (2020), pp.1-8.
https://search.emarefa.net/detail/BIM-1208879
American Medical Association (AMA)
Ke, Qiao& Zeng-guo, Sun& Liu, Yang& Wei, Wei& Woźniak, Marcin& Scherer, Rafał. High-Resolution SAR Image Despeckling Based on Nonlocal Means Filter and Modified AA Model. Security and Communication Networks. 2020. Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1208879
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1208879