Affine Invariants of Planar Sets

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

Recent research has indicated that invariants can be useful in computer vision for identification and pose determination of objects. The idea is to find functions that are invariant under a set of transformations acting on a configuration space. This paper describes some new viewpoints on the construction and use of such invariants. The key idea is that any kind of features like derivatives, distinguished points or integrative features can be used to construct invariants. In a given viewing situation one should choose those features that are most stable. As examples, affine invariants for planar smooth curves, planar regions, and planar point configurations are given. The properties of the invariants are illustrated with experiments
Original languageEnglish
Title of host publicationSCIA'93 Proceedings of the 8th Scandinavian Conference on Image Analysis
PublisherNOBIM-Norwegian Soc. Image Process. & Pattern Recognition
Pages769-776
Volume2
Publication statusPublished - 1993
EventProceedings of Scandinavian Conference on Image Analysis - Tromsö, Norway
Duration: 1993 May 251993 May 28

Publication series

Name
Volume2

Conference

ConferenceProceedings of Scandinavian Conference on Image Analysis
Country/TerritoryNorway
CityTromsö
Period1993/05/251993/05/28

Subject classification (UKÄ)

  • Mathematics

Free keywords

  • Affine invariants
  • planar sets
  • moments
  • group action
  • image recognition
  • indexing.

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