Affine normalization of symmetric objects

  • Authors:
  • Tomáš Suk;Jan Flusser

  • Affiliations:
  • Institute of Information Theory and Automation, Academy of Sciences of the Czech Republic, Prague 8, Czech Republic;Institute of Information Theory and Automation, Academy of Sciences of the Czech Republic, Prague 8, Czech Republic

  • Venue:
  • ACIVS'05 Proceedings of the 7th international conference on Advanced Concepts for Intelligent Vision Systems
  • Year:
  • 2005

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Abstract

A new method of normalization is used for the construction of the affine moment invariants. The affine transform is decomposed into translation, scaling, stretching, two rotations and mirror reflection. The object is successively normalized to these elementary transforms by means of low order moments. After normalization, other moments of normalized object can be used as affine invariant features of the original object. We pay special attention to the normalization of symmetric objects.