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Building façades reconstruction using multi-view TomoSAR point clouds

Shahzad, Muhammad and Zhu, Xiao Xiang (2013) Building façades reconstruction using multi-view TomoSAR point clouds. In: Proceedings of Joint Urban Remote Sensing Event, pp. 163-166. JURSE 2013, 21-23 Apr 2013, Sao Paolo, Brazil. ISBN 978-1-4799-0212-5.

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Official URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6550691


Rich scatterer information retrieved by very high resolution SAR tomography using multiple data stacks from different viewing angles enables us to generate 4D point clouds of the illuminated area from space. They can be potentially used for façade reconstruction and deformation monitoring in urban environment. In this paper, we propose an approach for façade detection and reconstruction from such point clouds. Firstly, the building façade points are extracted from the point density projected onto the ground plane. The extracted façade points are segmented into corresponding individual façades by means of orientation analysis. Surface (flat or curved) model parameters of the segmented building façades are further estimated. Finally, the elevation estimate 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 fused TomoSAR point clouds generated from two stacks of TerraSAR-X high spotlight images from both ascending and descending orbits.

Item URL in elib:https://elib.dlr.de/82250/
Document Type:Conference or Workshop Item (Speech)
Title:Building façades reconstruction using multi-view TomoSAR point clouds
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Shahzad, Muhammadmuhammad.shahzad (at) bv.tum.deUNSPECIFIED
Zhu, Xiao Xiangxiao.zhu (at) dlr.deUNSPECIFIED
Journal or Publication Title:Proceedings of Joint Urban Remote Sensing Event
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 163-166
Keywords:TomoSAR, point cloud, façade reconstruction, 4D city model, TerraSAR-X
Event Title:JURSE 2013
Event Location:Sao Paolo, Brazil
Event Type:international Conference
Event Dates:21-23 Apr 2013
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:31 May 2013 14:10
Last Modified:08 May 2014 23:28

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