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First Prismatic Building Model Reconstruction from TomoSAR Points Clouds

Sun, Yao and Shahzad, Muhammad and Zhu, Xiao Xiang (2016) First Prismatic Building Model Reconstruction from TomoSAR Points Clouds. In: The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, XLI-B3, pp. 381-386. ISPRS. ISPRS Congress 2016, 12-19 Jul 2016, Prague, Czech Republic. doi: 10.5194/isprs-archives-XLI-B3-381-2016.

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Official URL: http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLI-B3/381/2016/isprs-archives-XLI-B3-381-2016.pdf


This paper demonstrates for the first time the potential of explicitly modelling the individual roof surfaces to reconstruct 3-D prismatic building models using spaceborne tomographic synthetic aperture radar (TomoSAR) point clouds. The proposed approach is modular and works as follows: it first extracts the buildings via DSM generation and cutting-off the ground terrain. The DSM is smoothed using BM3D denoising method proposed in (Dabov et al., 2007) and a gradient map of the smoothed DSM is generated based on height jumps. Watershed segmentation is then adopted to oversegment the DSM into different regions. Subsequently, height and polygon complexity constrained merging is employed to refine (i.e., to reduce) the retrieved number of roof segments. Coarse outline of each roof segment is then reconstructed and later refined using quadtree based regularization plus zig-zag line simplification scheme. Finally, height is associated to each refined roof segment to obtain the 3-D prismatic model of the building. The proposed approach is illustrated and validated over a large building (convention center) in the city of Las Vegas using TomoSAR point clouds generated from a stack of 25 images using Tomo-GENESIS software developed at DLR.

Item URL in elib:https://elib.dlr.de/102355/
Document Type:Conference or Workshop Item (Speech)
Title:First Prismatic Building Model Reconstruction from TomoSAR Points Clouds
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Sun, Yaoyao.sun (at) tum.deUNSPECIFIED
Shahzad, Muhammadmuhammad.shahzad (at) bv.tum.deUNSPECIFIED
Date:7 January 2016
Journal or Publication Title:The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
DOI :10.5194/isprs-archives-XLI-B3-381-2016
Page Range:pp. 381-386
Keywords:TerraSAR-X, tomographic SAR inversion (TomoSAR), 4-D point cloud, building reconstruction, watershed segmentation
Event Title:ISPRS Congress 2016
Event Location:Prague, Czech Republic
Event Type:international Conference
Event Dates:12-19 Jul 2016
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:22 Jan 2016 14:43
Last Modified:31 Jul 2019 19:59

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