SCSIO OpenIR  > 热带海洋环境国家重点实验室(LTO)
Speckle suppression in synthetic aperture radar ocean internal solitary wave images with curvelet transform
Zha Guozhen; He Qingyou; Guan Changlong; Sun Jian; He Mingxia; Guan, CL (reprint author), Ocean Univ China, Coll Ocean & Atmospher Sci, Qingdao 266100, Peoples R China.; Guan, CL (reprint author), Ocean Univ China, Phys Oceanog Lab, Qingdao 266100, Peoples R China.
2016
Source PublicationACTA OCEANOLOGICA SINICA
Volume35Issue:9Pages:13-21
AbstractThis paper proposes a speckle-suppression method for ocean internal solitary wave (ISW) synthetic aperture radar (SAR) images by using the curvelet transform. The band-shaped signatures of ocean ISWs in SAR images show obvious scale and directional characteristics. The curvelet transform possesses a very high scale and directional sensitivity. Therefore, the curvelet transform is very efficient in analyzing wave signals in SAR images. A noisy ocean ISW SAR image can be decomposed at different scales, directions, and positions using the curvelet transform. The information of the ISWs is centralized in the curvelet coefficients of certain directions under certain scales, whereas the speckle noise is distributed in every scale and direction. By manipulating the curvelet coefficients, the signals of the ISWs can be extracted from the noisy SAR image. Finally, the speckle noise is suppressed and the ISW feature is enhanced by adding the signals of the ISWs back to the original SAR image. Experiments demonstrate the effectiveness of this method.
Department[Zha Guozhen; Guan Changlong; Sun Jian] Ocean Univ China, Coll Ocean & Atmospher Sci, Qingdao 266100, Peoples R China; [He Qingyou] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China; [He Qingyou] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Guan Changlong; Sun Jian] Ocean Univ China, Phys Oceanog Lab, Qingdao 266100, Peoples R China; [He Mingxia] Ocean Univ China, Ocean Remote Sensing Inst, Qingdao 266100, Peoples R China ; LTO
KeywordCurvelet Transform Internal Solitary Wave Remote Sensing Speckle Noise Synthetic Aperture Radar
Subject AreaOceanography
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/15251
Collection热带海洋环境国家重点实验室(LTO)
Corresponding AuthorGuan, CL (reprint author), Ocean Univ China, Coll Ocean & Atmospher Sci, Qingdao 266100, Peoples R China.; Guan, CL (reprint author), Ocean Univ China, Phys Oceanog Lab, Qingdao 266100, Peoples R China.
Recommended Citation
GB/T 7714
Zha Guozhen,He Qingyou,Guan Changlong,et al. Speckle suppression in synthetic aperture radar ocean internal solitary wave images with curvelet transform[J]. ACTA OCEANOLOGICA SINICA,2016,35(9):13-21.
APA Zha Guozhen.,He Qingyou.,Guan Changlong.,Sun Jian.,He Mingxia.,...&Guan, CL .(2016).Speckle suppression in synthetic aperture radar ocean internal solitary wave images with curvelet transform.ACTA OCEANOLOGICA SINICA,35(9),13-21.
MLA Zha Guozhen,et al."Speckle suppression in synthetic aperture radar ocean internal solitary wave images with curvelet transform".ACTA OCEANOLOGICA SINICA 35.9(2016):13-21.
Files in This Item:
File Name/Size DocType Version Access License
Speckle suppression (1854KB)期刊论文作者接受稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.