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Comparison of DSM Generation Methods of Urban Areas from Ikonos Images

Krauß, Thomas and Reinartz, Peter and Lehner, Manfred (2007) Comparison of DSM Generation Methods of Urban Areas from Ikonos Images. Revue Francaise de Photogrammetrie et de Teledection, 2006 (4), pp. 101-106. Societe Francaise de Photogrammetrie et de Teledection.

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Abstract

In this paper two methods, an area based matching and a so called dynamic line warping, for generating digital surface models (DSMs) from IKONOS image pairs are compared and their limitations and usability for the rapid generation of good DSMs are discussed. The new dynamic line warping method is based on techniques used in speech recognition for warping corresponding epipolar lines of the stereo images onto each other in order to extract so parallaxes and object heights. One critical parameter for the derivation of DSMs is the convergence angle of the two stereo images. A small convergence angle gives similar images with smaller parallaxes and is better for area based matching techniques but is said to result in larger height errors and lacks of views from vertical features like walls. A large convergence angle ­ as used in the standard stereo products of most satellite image providers ­ on the other hand leads in urban areas to many features hidden in one or the other image and very different viewing conditions leading to more problems for intensity based matching. Therefore three IKONOS scenes with different convergence angles are used and the results are compared qualitatively.

Item URL in elib:https://elib.dlr.de/52716/
Document Type:Article
Additional Information:Bei dem Zeitrschriftenartikel handelt es sich um eine erneute Veröffentlichung des Konferenzbeitrags des "Symposium ISPRS Commission Technique I Des capteurs a l'Imagerie", Marne-la-vallee, 3.-6.7.2006
Title:Comparison of DSM Generation Methods of Urban Areas from Ikonos Images
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Krauß, ThomasUNSPECIFIEDUNSPECIFIED
Reinartz, PeterUNSPECIFIEDUNSPECIFIED
Lehner, ManfredUNSPECIFIEDUNSPECIFIED
Date:2007
Journal or Publication Title:Revue Francaise de Photogrammetrie et de Teledection
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:2006
Page Range:pp. 101-106
Editors:
EditorsEmail
Airault, SylvainUNSPECIFIED
Publisher:Societe Francaise de Photogrammetrie et de Teledection
Status:Published
Keywords:VHR data, Stereo Data, DSM generation, dynamic programming
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:25 Jan 2008
Last Modified:31 Jul 2019 19:21

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