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Orthorectification and DSM generation with ALOS-Prism data in urban areas

Krauß, Thomas and Schneider, Mathias and Reinartz, Peter (2009) Orthorectification and DSM generation with ALOS-Prism data in urban areas. In: Proceedings of IGARSS 2009, 5, pp. 33-36. IEEEXplore. IGARSS 2009, 13-17 Jul 2009, Cape-Town, South Africa. ISBN 978-1-4244-3395-7 (e) 978-1-4244-3394-0 (p) ISSN DOI: 10.1109/IGARSS.2009.5417739


Official URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5417739&tag=1


In this paper different methods for deriving digital surface models (DSM) from ALOS Prism three line stereo images are generated and analyzed. The methods used are classical hierarchical stereo matching with forward intersection and two different dense stereo methods. These are digital line warping which was derived from speech recognition algorithms and semi global matching which is originating in computer vision. All these dense stereo methods need epipolar imagery as input and provide so called disparity images as output. For this in a first step the Prism images has to be transformed by pairs to epipolar geometry. For the reprojection of the disparity images to real DSMs rational polynomial coefficients - which were computed from the satellite ephemeris and attitude date - are used. Finally the DSMs generated by all these different methods are compared to a DSM derived from an Ikonos stereo image pair with a ground sampling distance of 1 m.

Item URL in elib:https://elib.dlr.de/59565/
Document Type:Conference or Workshop Item (Speech)
Title:Orthorectification and DSM generation with ALOS-Prism data in urban areas
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Krauß, Thomasthomas.krauss (at) dlr.deUNSPECIFIED
Schneider, Mathiasmathias.schneider (at) dlr.deUNSPECIFIED
Reinartz, Peterpeter.reinartz (at) dlr.deUNSPECIFIED
Date:17 July 2009
Journal or Publication Title:Proceedings of IGARSS 2009
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 33-36
Series Name:Proceedings of the IEEE Geoscience and Remote Sensing Symposium (IGARSS)
ISSN:DOI: 10.1109/IGARSS.2009.5417739
ISBN:978-1-4244-3395-7 (e) 978-1-4244-3394-0 (p)
Keywords:digital surface models (DSM), DEM generation, urban DEMs, hierarchical area based matching, semi global matching, dense stereo algorithms, DEM analysis
Event Title:IGARSS 2009
Event Location:Cape-Town, South Africa
Event Type:international Conference
Event Dates:13-17 Jul 2009
Organizer:IEEE Org.
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Bildwissenschaften (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Photogrammetry and Image Analysis
Deposited By: Krauß, Thomas
Deposited On:28 Jul 2009 09:24
Last Modified:31 Jul 2019 19:25

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