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Modeling of Buildings in Urban Areas from high resolution stereo Satellite Images for Population Estimation and Change Detection

Krauß, Thomas and Reinartz, Peter and Lehner, Manfred (2007) Modeling of Buildings in Urban Areas from high resolution stereo Satellite Images for Population Estimation and Change Detection. In: JRC Scientific and Technical Reports EU, Luxembourg. pp. 350-360. ISBN 978-92-79-07584-1. ISSN 1018-5593.

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Models of urban areas are an important input for many applications in the field of urban monitoring. Besides the creation and updating of maps from sprawling urban settlements the models are also used for simulation and planning in case of catastrophic events like flooding, tsunamis or earth quakes. With the availability of very high resolution (VHR) satellite data investigations of large urban areas regarding their three dimensional shape can be performed fast and relatively cheap in comparison to aerial photography especially for cities in developing countries. Most of the actual methods used for the generation of city models depend on a large amount of interactive work. A method for automatic derivation of - in a first step - coarse models of urban structure is therefore of great use. In this paper the methods used for such an automatic modeling is presented. The methods are based on stereo images from VHR satellite stereo imagery provided by satellite sensors like IKONOS or QuickBird. In a first step a digital surface model (DSM) is derived from the stereo data. Subsequently a digital terrain model (DTM) is generated from the DSM. Orthoimages are created in parallel using the derived DSM. Based on the local height differences between DSM and DTM and the normalized difference vegetation index (NDVI) a coarse classification of the orthoimages is performed. The classification divides the images in four classes: low level and no vegetation, low level with vegetation, higher level and no vegetation and higher level with vegetation. Based upon this classification object models are selected and object parameters are adapted to create an object-based representation of the satellite image scene - especially of man made buildings. The used processing steps are evaluated and the results for IKONOS stereo pairs of the cities of Athens and Munich are presented and discussed.

Item URL in elib:https://elib.dlr.de/52720/
Document Type:Contribution to a Collection
Title:Modeling of Buildings in Urban Areas from high resolution stereo Satellite Images for Population Estimation and Change Detection
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Journal or Publication Title:JRC Scientific and Technical Reports
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 350-360
EditorsEmailEditor's ORCID iDORCID Put Code
Publisher:EU, Luxembourg
Keywords:VHR data, stereo images, digital surface models, classification, urban modeling, building extraction
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:06 May 2013 16:16

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