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Abstract

We present a new method to visualize virtual endoscopic views. We propose to flatten the organ by the direct projection of the surface onto a set of cylinders. Two sampling strategies are presented and the introduced distortions are studied. A non-photorealistic technique is presented to enhance the perception of the images. Finally, an approximate but real-time endoscopic fly-through is possible by using the data obtained by the projection technique.

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@techreport{Vilanova-2000-VCF,
  title =      "Virtual Colon Flattening",
  author =     "Anna Vilanova i Bartrol{\' i} and Rainer Wegenkittl and
               Andreas K{\"o}nig and Meister Eduard Gr{\"o}ller and E.
               Sorantin",
  year =       "2000",
  abstract =   "We present a new method to visualize virtual endoscopic
               views. We propose to flatten the organ by the direct
               projection of the surface onto a set of cylinders. Two
               sampling strategies are presented and the introduced 
               distortions are studied. A non-photorealistic technique is
               presented to enhance the perception of the images. Finally,
               an approximate but real-time endoscopic fly-through is
               possible by using the data obtained by                  the
               projection technique.",
  address =    "Favoritenstrasse 9-11/186, A-1040 Vienna, Austria",
  institution = "Institute of Computer Graphics and Algorithms, Vienna
               University of Technology",
  note =       "human contact: technical-report@cg.tuwien.ac.at",
  month =      dec,
  number =     "TR-186-2-00-25",
  keywords =   "Colon Flattening, Volume Rendering, Virtual Colonoscopy",
  URL =        "http://www.cg.tuwien.ac.at/research/publications/2000/Vilanova-2000-VCF/",
}