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Evaluation of Digital Surface Models by Semi-Global Matching

Hirschmüller, Heiko and Bucher, Tilman (2010) Evaluation of Digital Surface Models by Semi-Global Matching. DGPF 2010, 01-02 July 2010, Vienna, Austria.

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Abstract

This paper considers a processing chain for automatically creating high resolution digital surface models and true ortho-images from aerial and satellite image data. It has been developed at the Institute of Robotics and Mechatronics of the German Aerospace Center (DLR-RM). The processing chain is based on Semi-Global Matching (SGM) that uses a radiometric robust matching cost and an optimization that is based on a global smoothness constraint. SGM is especially suitable for creating models of urban scenes, where sharp depth discontinuities and small details need to be precisely reconstructed. However, the technique also produces very good results in scenes with forest and mountains. In this paper we give an overview of the processing chain and evaluate its results on test data sets from different aerial cameras. It is concluded that SGM permits the creation of high quality surface models that are more accurate and provide much more detail than a surface model from an aerial laser scanner. We also discuss the conditions under which good surface models can be produced by SGM. For very good results, an overlap of 80 % or more along track and 70 % across track should be provided.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Evaluation of Digital Surface Models by Semi-Global Matching
Authors:
AuthorsInstitution or Email of Authors
Hirschmüller, Heikoheiko.hirschmueller@dlr.de
Bucher, Tilmantilman.bucher@dlr.de
Date:1 July 2010
Refereed publication:No
In ISI Web of Science:No
Status:Published
Keywords:stereo matching, digital surface models, aerial images, satellite images
Event Title:DGPF 2010
Event Location:Vienna, Austria
Event Type:national Conference
Event Dates:01-02 July 2010
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W SY - Technik für Raumfahrtsysteme
DLR - Research area:Space
DLR - Program:W SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):W - Leistungszentrum Robotik - Mobilität und Exploration (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Robotics and Mechatronics > Robotic Systems
Deposited By: Dr.(PH.D.) Heiko Hirschmüller
Deposited On:06 Dec 2010 11:16
Last Modified:12 Dec 2013 21:07

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