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Closed Projects

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Static 3D city models are well established for many applications such as architecture, urban planning, navigation, tourism, and disaster management. The recent launches of very high resolution (VHR) Synthetic Aperture Radar (SAR) Earth observation satellites, like the German TerraSAR-X, provide for the first time the possibility to derive both shape and deformation parameters of urban infrastructure on a continuous basis. The proposal “4D City” is directed towards 4D (space-time) urban infrastructure monitoring and visualization by fusion of multiple sensors: Differential Tomographic SAR (D-TomoSAR), stereo-optical images and LiDAR (Light Detection and Ranging). The different sensors complement to each other: stereo-optical data have the best visual interpretability, LiDAR provides very accurate Digital Elevation Models (DEM), and D-TomoSAR as well as the related Persistent Scatterer Interferometry (PSI) are the only methods to provide the dynamic component of buildings with up to millimeter accuracy, e.g. seasonal thermal dilation, structural deformation, or subsidence due to groundwater extraction or underground construction.

Since VHR D-TomoSAR of urban infrastructure is a new research area, the development and improvement of appropriate robust TomoSAR algorithms will be the first focus of the project. Second, data fusion for combining the strengths of different sensors will be developed both on the geodetic and the semantic levels. Finally, a particular challenge will be the user specific visualization of the 4D multi-sensor data showing the urban objects and their dynamic behavior. Visualization must handle spatially anisotropic data uncertainties and possibly incomplete dynamic information. It may also integrate some of the data fusion steps. Different levels of user expertise must be considered.

The research envisioned in this proposal will lead to a new kind of city models for monitoring and visualization of the dynamics of urban infrastructure in a very high level of detail. The change or deformation of different parts of individual buildings will be accessible for different types of users (geologists, civil engineers, decision makers, etc.) to support city monitoring and management as well as risk assessment.

 

 

01-01-1970
14.02.17

Registration now open: IGSSE Forum 2017

29-31 May 2017, TUM Science and Study Center Raitenhaslach, Burghausen

25.04.17

EuroTech postdoc workshop: Success in academia?

20-22 September 2017, Technical University of Denmark, Lynby Campus

18.04.17

Project team ROLITOS in a German documentary

10 May 2017, 11.30 pm Suedwestrundfunk (TV)

30 May 2017, 10.30 pm Bayerischer Rundfunk (TV)

11.04.17

Apply now: McKinsey 'Forschergeist' symposium

9-11 June 2017, Berlin

For doctoral researchers and postdocs!

10.04.17

Register now: ICMSB 2017

26-28 July 2017, TUM Study and Science Center, Raitenhaslach

14.02.17

Registration now open: IGSSE Forum 2017

29-31 May 2017, TUM Science and Study Center Raitenhaslach, Burghausen

05.06.16

10th IGSSE Forum

Smart cooperation - science and technology in, with and for society

15.12.15

The Science of Cooking

Doctoral Candidates explore the Secrets of a great Dinner

26.11.15

ATUMS@IGSSE

Having heard of a great Canadian Kick-Off Meeting, everyone at IGSSE was thrilled to welcome the...

20.11.15

Breakfast at IGSSE´s

Meet the IGSSE team every other month! All the things IGSSE members wanted to asked but never dared...

13.10.15

Save the Date: Canadian ATUMS Speaker on "Global Science- Global Career"

26. November 2015, 6-8 pm, IAS Faculty Club, Garching Campus

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Wednesday, 10. May 2017
Project team ROLITOS in a German documentary
10 May 2017, 11.30 pm Suedwestrundfunk (TV) 30 May 2017, 10.30 pm Bayerischer Rundfunk (TV)
Wednesday, 17. May 2017
Podiumsdiskussion: Frauenförderung - Quo vadis?
17. Mai 2017, 14- 16 Uhr, Hochschule Weihenstephan-Triesdorf, Weidenbach
Friday, 19. May 2017
Tuesday, 23. May 2017
Monday, 29. May 2017
Registration now open: IGSSE Forum 2017
29-31 May 2017, TUM Science and Study Center Raitenhaslach, Burghausen