Potential and limits of InSAR data for the reconstruction of buildings
The automatic reconstruction of buildings for the generation of city models
is of great interest for different tasks. 3D information can be directly
obtained from both, laser (LIDAR) and radar (InSAR) measurements. The data
acquisition by SAR is described, with emphasis on the special properties of
the interferometric SAR principle. A segmentation approach for building
reconstruction is proposed. In case of InSAR special effects are taken into
account, which are caused by the side-looking illumination. The estimation of
the signal noise is considered in the segmentation process. Besides the elevation,
the intensity information is exploited to detect building areas. The results show
that building reconstruction is possible from InSAR, but the achievable level of
detail cannot be compared with LIDAR. Inherent geometric constraints which limit
the reconstruction of buildings from SAR data of dense urban areas are discussed.
Stilla U, Soergel U, Thönnessen U (2001)
Potential and limits of InSAR data for the reconstruction of buildings.
In: IEEE/ISPRS Joint workshop on remote sensing and data fusion over urban areas,
Urban 2001.
IEEE, 64-68
(ISBN 0-7803-7059-7)
[ Stilla.de/pub ]