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Refinement of urban digital elevation models from very high resolution stereo satellite images

Krauß, Thomas and Reinartz, Peter (2009) Refinement of urban digital elevation models from very high resolution stereo satellite images. ISPRS. IPI-Workshop, 02-05 Jun 2009, Hannover. ISSN 1682-1750

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Abstract

Digital elevation models (DEM) of high resolution and high quality are required for many applications like urban modeling, readiness for catastrophes or disaster assessment. A good source for the derivation of such DEMs from any place in the world are very high resolution (VHR) satellite stereo images as provided e.g. by Ikonos, QuickBird or WorldView. In this paper a method for the generation and refinement of urban high resolution DEMs from VHR imagery is presented and evaluated. Urban DEMs generated from very high resolution satellite imagery of ground sampling distances of about one meter are normally of resolutions of about three to ten meters. For the above mentioned applications of urban DEMs such results are often too coarse. In this paper an advanced method for the generation of dense digital elevation models is presented and discussed. The method is mainly based on dense stereo algorithms developed for computer vision applications. It is adapted and optimized to earth observation requirements. In the paper the DEM generation together with the additional refinement steps is presented and evaluated using very high resolution stereo imagery from Munich and Athens. The generated DEMs are compared to ground truth data where available and the quality and efficiency of the algorithms are analyzed and discussed.

Item URL in elib:https://elib.dlr.de/59563/
Document Type:Conference or Workshop Item (Poster)
Title:Refinement of urban digital elevation models from very high resolution stereo satellite images
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Krauß, Thomasthomas.krauss (at) dlr.deUNSPECIFIED
Reinartz, Peterpeter.reinartz (at) dlr.deUNSPECIFIED
Date:June 2009
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-6
Publisher:ISPRS
Series Name:International Archives of Photogrammetry and Remote Sensing
ISSN:1682-1750
Status:Published
Keywords:VHR satellite data, stereo images, digital surface models, optimization, dense stereo matching, occlusion mask, blunder elimination
Event Title:IPI-Workshop
Event Location:Hannover
Event Type:Workshop
Event Dates:02-05 Jun 2009
Organizer:Universität Hannover
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 09:25
Last Modified:31 Jul 2019 19:25

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