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Eigenanalysis and Artifacts of Subdivision Curves and Surfaces

  • Malcolm Sabin
Part of the Mathematics and Visualization book series (MATHVISUAL)

Abstract

When refinement methods were first shown to be applicable to data which was not totally regular, an immediate question was ‘how does the limit surface behave around an extraordinary point?’. The technique of eigenanalysis was the answer then and is still the primary technique today.

An issue only now becoming seriously important with the wider use of refinement methods is whether the processes introduce artifacts into the limit surface not implied by the original data. Certainly some examples can be shown, where the artifacts are serious, and a major challenge for the immediate future is whether we can understand them well enough to tune our systems to avoid creating them, or, if not, at least to tell our users how to avoid problems when defining the data for a refinement surface.

Keywords

Control Point Mark Point Subdivision Scheme Limit Curve Support Region 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • Malcolm Sabin
    • 1
    • 2
  1. 1.Computer LaboratoryCambridge UniversityEngland
  2. 2.Numerical Geometry Ltd.UK

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