Shahzad, Muhammad and Zhu, Xiao Xiang and Bamler, Richard (2012) Façade structure reconstruction using spaceborne TomoSAR point clouds. IGARSS'12, 22-27 2012, Munich, Germany.
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Abstract
Very high resolution SAR tomography using multiple data stacks from different viewing angles enables us for the first time to generate 4D point clouds of the illuminated area from space with a point density comparable to LiDAR. They can be potentially used for façade reconstruction and monitoring in urban environment. In this paper, we propose an approach for façade detection and reconstruction from such point clouds. Firstly, the façade region is extracted by thresholding the point density on the ground plane. The extracted façades points are then clustered into segments corresponding to individual façades by means of slope analysis. Surface (flat or curved) model parameters of the segmented building façades are further estimated. Finally, the elevation estimates of each raw TomoSAR point is refined by using its more accurate azimuth and range coordinates, and the corresponding reconstructed surface model of the façade. The proposed approach is illustrated and validated by examples using TomoSAR point clouds generated from a stack of 25 TerraSAR-X high spotlight images
Item URL in elib: | https://elib.dlr.de/76349/ | ||||||||||||
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Document Type: | Conference or Workshop Item (UNSPECIFIED) | ||||||||||||
Title: | Façade structure reconstruction using spaceborne TomoSAR point clouds | ||||||||||||
Authors: |
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Date: | 2012 | ||||||||||||
Refereed publication: | No | ||||||||||||
Open Access: | Yes | ||||||||||||
Gold Open Access: | No | ||||||||||||
In SCOPUS: | No | ||||||||||||
In ISI Web of Science: | No | ||||||||||||
Page Range: | pp. 467-470 | ||||||||||||
Status: | Published | ||||||||||||
Keywords: | SAR tomography (TomoSAR), TerraSAR-X, point clouds, façade reconstruction | ||||||||||||
Event Title: | IGARSS'12 | ||||||||||||
Event Location: | Munich, Germany | ||||||||||||
Event Type: | international Conference | ||||||||||||
Event Dates: | 22-27 2012 | ||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||
HGF - Program: | Space | ||||||||||||
HGF - Program Themes: | Earth Observation | ||||||||||||
DLR - Research area: | Raumfahrt | ||||||||||||
DLR - Program: | R EO - Earth Observation | ||||||||||||
DLR - Research theme (Project): | R - Vorhaben hochauflösende Fernerkundungsverfahren (old) | ||||||||||||
Location: | Oberpfaffenhofen | ||||||||||||
Institutes and Institutions: | Remote Sensing Technology Institute > SAR Signal Processing | ||||||||||||
Deposited By: | Shahzad, Muhammad | ||||||||||||
Deposited On: | 13 Jul 2012 07:13 | ||||||||||||
Last Modified: | 31 Jul 2019 19:36 |
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