ISPRS Commission III, Vol.34, Part 3A „Photogrammetric Computer Vision“, Graz, 2002 
  
7 ACKNOWLEGMENTS 
This work was partly founded by the Swiss Federal Office of 
Topography. We thank the Swiss Federal Office of Topography 
for providing the laser scanner data set, pixel map as well as the 
ortho photos. The authors also thank the ”Gesellschaft von 
Freunden und Förderern der Technischen Universität Dresden 
e. V. 
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