The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume XL-1/W1
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-1/W1, 345–350, 2013
https://doi.org/10.5194/isprsarchives-XL-1-W1-345-2013
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-1/W1, 345–350, 2013
https://doi.org/10.5194/isprsarchives-XL-1-W1-345-2013

  02 May 2013

02 May 2013

EXTRACTION OF BUILIDNG SHAPE FROM TANDEM-X DATA

A. Thiele, M. M. Wurth, M. Even, and S. Hinz A. Thiele et al.
  • Institute of Photogrammetry and Remote Sensing (IPF), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
  • Fraunhofer Institute of Optronics, System Technologies and Image Exploitation (IOSB), Ettlingen, Germany

Keywords: TanDEM-X, Interferometry, Building Detection

Abstract. Large scale mapping and modeling of urban areas is requested in many fields, especially in planning of energy supply and for change detection. For this purpose, SAR systems are highly attractive due to their independency of daytime and weather. The new satellite configuration of TerraSAR-X and TanDEM-X provides single-pass 3D mapping of the earth with unprecedented geometric resolution, allowing for improved detection and extraction of building positions and shapes.

In this paper, single-pass interferograms of the TanDEM-X mission are utilized to automatically reconstruct buildings. To this purpose, first an interferogram is calculated from a TanDEM pair. Then, a new detector is applied that analyses phase ramps in the interferogram. Phase ramps being a pattern typically observable in layover areas of buildings, the detector is able to indicate building locations. Afterwards, the detected building areas are analyzed in more detail to extract width, length, and height of the buildings. Last, an edge detector is applied to deduce the building shapes. The reconstruction results are compared with reference data.