Contour Generator

  • Alan Bundy
  • Lincoln Wallen
Part of the Symbolic Computation book series (SYMBOLIC)


A Contour Generator is a set of points on a generating object surface that projects to an occluding contour in an image. A special case of a contour generator is an extremal boundary of an object, this is a boundary along which a surface turns smoothly away from the viewer. At extremal boundaries the surface normal is perpendicular to both the line of sight and the occluding contour projected into the image.




  1. [Barrow and Tenenbaum 81]
    Barrow, H.G. and Tenenbaum, J. M. Interpreting Line drawings as Three-Dimensional Scenes. Artificial Intelligence 17:75–116, 1981.CrossRefGoogle Scholar
  2. [Marr 77]
    Marr, D. Analysis of Occluding Contour. Proc. Roy. Soc. Lond. B197:441–475, 1977.CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1984

Authors and Affiliations

  • Alan Bundy
    • 1
  • Lincoln Wallen
  1. 1.Department of Artificial IntelligenceEdinburgh UniversityEdinburghScotland

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