Recognizing algebraic surfaces from their outlines

Research output: Contribution to journalArticlepeer-review


The outline in a single picture of a generic algebraic surface of degree three or greater completely determines the projective geometry of the surface. The result holds for a generic perspective view of a generic algebraic surface, where the camera calibration parameters and the focal point are unknown. Known camera calibration appears not to reduce the projective ambiguity. The result is constructive.

Original languageEnglish (US)
Pages (from-to)21-40
Number of pages20
JournalInternational Journal of Computer Vision
Issue number1
StatePublished - 1996
Externally publishedYes


  • Algebraic surfaces
  • Computer vision
  • Invariant theory
  • Outlines
  • Recognition

ASJC Scopus subject areas

  • Software
  • Computer Vision and Pattern Recognition
  • Artificial Intelligence


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