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Geometrical Fusion of Multitrack PS Point Clouds

Gernhardt, Stefan and Cong, Xiaoying and Eineder, Michael and Hinz, Stefan and Bamler, Richard (2011) Geometrical Fusion of Multitrack PS Point Clouds. IEEE Geoscience and Remote Sensing Letters, 9 (1), pp. 38-42. IEEE. DOI: 10.1109/LGRS.2011.2159190. ISSN 1545-598X.

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Recent radar satellites like TerraSAR-X and COSMO-SkyMed deliver very high resolution synthetic aperture radar images at a spatial resolution of less than 1 m. Persistent scatterer (PS) positions obtained from stacks of high-resolution spotlight data show very much details of buildings and other structures in 3-D due to the enormous amount of PS obtainable from data of this resolution class. As soon as more than one stack covering the same area is available, a combination of the results is eligible. However, geocoded PSs cannot be simply united due to residual offsets in their absolute positions which stem from unknown absolute height values of the different reference points chosen when processing the individual stacks independently. In this letter, two different methods for a geometrical fusion of geocoded PSs from stacks acquired at different aspect and incidence angles are presented. The algorithms are applied to PS interferometry results of both urban and nonurban areas.

Document Type:Article
Title:Geometrical Fusion of Multitrack PS Point Clouds
AuthorsInstitution or Email of Authors
Gernhardt, StefanStefan.Gernhardt@bv.tu-muenchen.de
Cong, Xiaoyingxiao.cong@dlr.de
Eineder, MichaelMichael.Eineder@dlr.de
Hinz, Stefanstefan.hinz@kit.edu
Bamler, RichardRichard.Bamler@dlr.de
Date:7 July 2011
Journal or Publication Title:IEEE Geoscience and Remote Sensing Letters
Refereed publication:Yes
In Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 38-42
Series Name:Geoscience and Remote Sensing Letters
Keywords:spotlight, high resolution, fusion, SAR, TerraSAR-X, persistent scatterer interferometry
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignement
DLR - Research theme (Project):R -- no assignement
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Stefan Gernhardt
Deposited On:23 Jan 2012 16:18
Last Modified:07 Feb 2013 20:20

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