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Fusion of sensor data, knowledge sources and algorithms for extraction and classification of topographic objects
Baltsavias, Emmanuel P.

International Archives of Photogrammetry and Remote Sensing, Vol. 32, Part 7-4-3 W6, Valladolid, Spain, 3-4 June, 1999
The procedure needs no additional or reference data, as all input
data comes from the generation processes and the DEMs
themselves and can be obtained from common DEM generation
software. This enables the operational implementation of the
procedure and paves the way for a wide range of remote sensing
applications needing accurate and reliable DEM information.
The fused DEM can be reintroduced as a reference in the
generation processes of the InSAR and stereo DEM, in order to
increase their accuracy. This is of special interest for the InSAR
phase flattening or coherence estimation, which is needed for
the SAR retrieval of several bio- and geophysical parameters.
The work is a result of our studies within the EU ORFEAS
project. The project was carried out in multi-national co
operation with University of Thessaloniki, Politechnico di
Milano, TU Graz, ETH Zurich, and Cartographic Institute of
Catalonia, which provided a very complete dataset of the south-
central part of Catalonia. I also want to thank Mr. Markus
Niederost, IGP, ETH Zurich and especially Ms. Kirsten Wolff,
Institute for Photogrammetry, University of Bonn, for their
useful hints and discussions.
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