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Non-Local Means Filter for Polarimetric SAR Speckle Reduction-Experiments Using Terrasar-X Data

Hu, Jingliang and Guo, Rui and Zhu, Xiaoxiang and Baier, Gerald and Wang, Yuanyuan (2015) Non-Local Means Filter for Polarimetric SAR Speckle Reduction-Experiments Using Terrasar-X Data. In: ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, II-3 (W4), pp. 71-77. Copernicus Publications. PIA15+HRIGI15, 25-27 Mar 2015, Munich. doi: 10.5194/isprsannals-II-3-W4-71-2015.

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Official URL: http://www.isprs-ann-photogramm-remote-sens-spatial-inf-sci.net/II-3-W4/71/2015/

Abstract

The speckle is omnipresent in synthetic aperture radar (SAR) images as an intrinsic characteristic. However, it is unwanted in certain applications. Therefore, intelligent filters for speckle reduction are of great importance. It has been demonstrated in several literatures that the non-local means filter can reduce noise while preserving details. This paper discusses non-local means filter for polarimetric SAR (PolSAR) speckle reduction. The impact of different similarity approaches, weight kernels, and parameters in the filter were analysed. A data-driven adaptive weight kernel was proposed. Combined with different similarity measures, it is compared with existing algorithms, using fully polarimetric TerraSAR-X data acquired during the commissioning phase. The proposed approach has overall the best performance in terms of speckle reduction, detail preservation, and polarimetric information preservation. This study suggests the high potential of using the developed non-local means filer for speckle reduction of PolSAR data acquired by the next generation SAR missions, e.g. TanDEM-L and TerraSAR-X NG.

Item URL in elib:https://elib.dlr.de/102747/
Document Type:Conference or Workshop Item (Speech)
Title:Non-Local Means Filter for Polarimetric SAR Speckle Reduction-Experiments Using Terrasar-X Data
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Hu, Jingliangjingliang.hu (at) dlr.deUNSPECIFIED
Guo, RuiDLR-IMFUNSPECIFIED
Zhu, Xiaoxiangxiao.zhu (at) dlr.deUNSPECIFIED
Baier, Geraldgerald.baier (at) dlr.deUNSPECIFIED
Wang, Yuanyuanyuanyuan.wang (at) dlr.deUNSPECIFIED
Date:2015
Journal or Publication Title:ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:II-3
DOI :10.5194/isprsannals-II-3-W4-71-2015
Page Range:pp. 71-77
Editors:
EditorsEmailEditor's ORCID iD
Stilla, U.Leibniz University Hannover, GermanyUNSPECIFIED
Heipke, C.TUM MünchenUNSPECIFIED
Publisher:Copernicus Publications
Status:Published
Keywords:Non-local means filter, Polarimetric synthetic aperture radar (PolSAR), TerraSAR-X, Similarity analysis, Weight kernel, Speckle reduction, Detail preservation, Polarimetric information preservation
Event Title:PIA15+HRIGI15
Event Location:Munich
Event Type:international Conference
Event Dates:25-27 Mar 2015
Organizer:ISPRS
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Vorhaben hochauflösende Fernerkundungsverfahren (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Hu, Jingliang
Deposited On:02 Feb 2016 16:16
Last Modified:31 Jul 2019 19:59

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