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Shahzad, Muhammad and Zhu, Xiao Xiang (2015) Reconstruction of Building Footprints using Spaceborne TOMOSAR Point Clouds. In: Proceedings of CMRT15 - City Models, Roads and Traffic 2015, pp. 385-392. CMRT 2015, 01-02- Oct 2015, La Motte, France.
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Official URL: http://www.pf.bgu.tum.de/isprs/cmrt15/
Abstract
This paper presents an approach that automatically (but parametrically) reconstructs 2-D/3-D building footprints using 3-D synthetic aperture radar (SAR) tomography (TomoSAR) point clouds. These point clouds are generated by processing SAR image stacks via SAR tomographic inversion. The proposed approach reconstructs the building outline by exploiting both the roof and façade points. Initial building footprints are derived by applying the alpha shapes method on pre-segmented point clusters of individual buildings. A recursive angular deviation based refinement is then carried out to obtain refined/smoothed 2-D polygonal boundaries. A robust fusion framework then fuses the information pertaining to building façades to the smoothed polygons. Afterwards, a rectilinear building identification procedure is adopted and constraints are added to yield geometrically correct and visually aesthetic building shapes. The proposed approach is illustrated and validated using TomoSAR point clouds generated from a stack of TerraSAR-X high-resolution spotlight images from ascending orbit covering approximately 1.5 km2 area in the city of Berlin, Germany.
| Item URL in elib: | https://elib.dlr.de/96302/ | |||||||||
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| Document Type: | Conference or Workshop Item (Speech) | |||||||||
| Title: | Reconstruction of Building Footprints using Spaceborne TOMOSAR Point Clouds | |||||||||
| Authors: |
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| Date: | 2015 | |||||||||
| Journal or Publication Title: | Proceedings of CMRT15 - City Models, Roads and Traffic 2015 | |||||||||
| Refereed publication: | Yes | |||||||||
| Open Access: | Yes | |||||||||
| Gold Open Access: | No | |||||||||
| In SCOPUS: | No | |||||||||
| In ISI Web of Science: | No | |||||||||
| Page Range: | pp. 385-392 | |||||||||
| Status: | Published | |||||||||
| Keywords: | SAR tomography, building footprint reconstruction, spaceborne, point cloud | |||||||||
| Event Title: | CMRT 2015 | |||||||||
| Event Location: | La Motte, France | |||||||||
| Event Type: | international Conference, Workshop | |||||||||
| Event Dates: | 01-02- Oct 2015 | |||||||||
| Organizer: | ISPRS | |||||||||
| HGF - Research field: | Aeronautics, Space and Transport | |||||||||
| HGF - Program: | Space | |||||||||
| HGF - Program Themes: | Earth Observation | |||||||||
| DLR - Research area: | Raumfahrt | |||||||||
| DLR - Program: | R EO - Erdbeobachtung | |||||||||
| DLR - Research theme (Project): | R - Vorhaben hochauflösende Fernerkundungsverfahren | |||||||||
| Location: | Oberpfaffenhofen | |||||||||
| Institutes and Institutions: | Remote Sensing Technology Institute > SAR Signal Processing | |||||||||
| Deposited By: | Shahzad, Muhammad | |||||||||
| Deposited On: | 26 May 2015 12:40 | |||||||||
| Last Modified: | 31 Jul 2019 19:53 |
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