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Nonlocal InSAR filtering for high resolution DEM generation from TanDEM-X interferograms

Baier, Gerald and Rossi, Cristian and Lachaise, Marie and Zhu, Xiao Xiang and Bamler, Richard (2017) Nonlocal InSAR filtering for high resolution DEM generation from TanDEM-X interferograms. IGARSS 2017, 23-28 July 2017, Fort Worth, United States.

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Abstract

We investigate the feasibility of generating highly accurate digital elevation models (DEM) from TanDEM-X interferograms by using nonlocal filters for phase denoising. Some of the shortcomings of existing nonlocal filters that render them not applicable to our goal are briefly described and a new filter is proposed that alleviates these problems. The most significant new properties are addressing the slope dependent denoising performance of existing nonlocal InSAR filters and several measures to bolster denoising near edge-like features. We evaluate the proposed filter using synthetic interferograms and by visual inspection of a DEM generated from a TanDEM-X interferogram.

Item URL in elib:https://elib.dlr.de/115943/
Document Type:Conference or Workshop Item (Speech)
Title:Nonlocal InSAR filtering for high resolution DEM generation from TanDEM-X interferograms
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Baier, GeraldGerald.Baier (at) dlr.deUNSPECIFIED
Rossi, CristianCristian.Rossi (at) dlr.deUNSPECIFIED
Lachaise, Mariemarie.lachaise (at) dlr.deUNSPECIFIED
Zhu, Xiao Xiangxiao.zhu (at) dlr.deUNSPECIFIED
Bamler, Richardrichard.bamler (at) dlr.deUNSPECIFIED
Date:July 2017
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-5
Status:Published
Keywords:DEM, InSAR denoising, nonlocal filtering
Event Title:IGARSS 2017
Event Location:Fort Worth, United States
Event Type:international Conference
Event Dates:23-28 July 2017
Organizer:IEEE
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben hochauflösende Fernerkundungsverfahren
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Baier, Gerald
Deposited On:05 Dec 2017 10:41
Last Modified:31 Jul 2019 20:13

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