Surface Models of Tube Trees

  • Authors:
  • Petr Felkel;Rainer Wegenkittl;Katja Buhler

  • Affiliations:
  • VRVis;VRVis;VRVis

  • Venue:
  • CGI '04 Proceedings of the Computer Graphics International
  • Year:
  • 2004

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Abstract

This paper describes a new method for generating surfacesof branching tubular structures with given centerlinesand radii. As the centerlines are not straight lines,the cross-sections are not parallel and well-known algorithmsfor surface tiling from parallel cross-sections cannotbe used. Non-parallel cross-sections can be tiled by meansof the maximal-disc interpolation method; special methodsfor branching-structures modeling by means of convolutionsurfaces produce excellent results, but these methodsare more complex than our approach. The proposedmethod tiles non-parallel circular cross-sections and constructsa topologically-correct surface mesh. The method isnot artifact-free, but it is fast and simple. The surface meshserves as a data representation of a vessel tree suitable forreal-time Virtual Reality operation planning and operationsupport within a medical application. Proposed method extractsa "classical" polygonal representation, which can beused in common surface-oriented graphic accelerators.