Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XXXVIII-4/W19, 17-22, 2011
http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XXXVIII-4-W19/17/2011/
doi:10.5194/isprsarchives-XXXVIII-4-W19-17-2011
© Author(s) 2011. This work is distributed
under the Creative Commons Attribution 3.0 License.
 
05 Sep 2012
EXTRACTING ROOF PARAMETERS AND HEAT BRIDGES OVER THE CITY OF OLDENBURG FROM HYPERSPECTRAL, THERMAL, AND AIRBORNE LASER SCANNING DATA
L. Bannehr1, Th. Luhmann2, J. Piechel2, T. Roelfs2, and An. Schmidt1 1Hochschule Anhalt, Institut für Geoinformation und Vermessung, Bauhausstraße 8, 06846 Dessau-Roßlau; Germany
2Jade Hochschule Oldenburg, Institut für Angewandte Photogrammetrie u. Geoinformatik, Ofener Str. 16, 26121 Oldenburg, Germany
Keywords: Hyperspectral Imaging, Airborne Laser Scanning, Thermal Imaging, Classification, Support Vector Machine, Decision Tree Abstract. Remote sensing methods are used to obtain different kinds of information about the state of the environment. Within the cooperative research project HiReSens, funded by the German BMBF, a hyperspectral scanner, an airborne laser scanner, a thermal camera, and a RGB-camera are employed on a small aircraft to determine roof material parameters and heat bridges of house tops over the city Oldenburg, Lower Saxony.
HiReSens aims to combine various geometrical highly resolved data in order to achieve relevant evidence about the state of the city buildings.
Thermal data are used to obtain the energy distribution of single buildings. The use of hyperspectral data yields information about material consistence of roofs. From airborne laser scanning data (ALS) digital surface models are inferred. They build the basis to locate the best orientations for solar panels of the city buildings. The combination of the different data sets offers the opportunity to capitalize synergies between differently working systems. Central goals are the development of tools for the collection of heat bridges by means of thermal data, spectral collection of roofs parameters on basis of hyperspectral data as well as 3D-capture of buildings from airborne lasers scanner data.
Collecting, analyzing and merging of the data are not trivial especially not when the resolution and accuracy is aimed in the domain of a few decimetre. The results achieved need to be regarded as preliminary. Further investigations are still required to prove the accuracy in detail.

Conference paper (PDF, 9127 KB)


Citation: Bannehr, L., Luhmann, Th., Piechel, J., Roelfs, T., and Schmidt, An.: EXTRACTING ROOF PARAMETERS AND HEAT BRIDGES OVER THE CITY OF OLDENBURG FROM HYPERSPECTRAL, THERMAL, AND AIRBORNE LASER SCANNING DATA, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XXXVIII-4/W19, 17-22, doi:10.5194/isprsarchives-XXXVIII-4-W19-17-2011, 2011.

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