Constraint relationship for reflectional symmetry and rotational symmetry

Dinggang Shen, H. H S Ip, E. K. Teoh

Research output: Contribution to journalArticle


A novel theorem linking reflectional symmetry and rotational symmetry has been established in this paper. This theorem constrains that, for a rotationally symmetric image with K≥1 fold(s) (K-RSI), its number of reflection-symmetric axes must be either K or zero. The novel constraint theorem provides the guidance for the procedure of symmetry detection. It has been demonstrated by the experiments included in this paper.

Original languageEnglish
Pages (from-to)998-1002
Number of pages5
JournalJournal of Electronic Imaging
Issue number4
Publication statusPublished - 2001 Oct 1
Externally publishedYes


ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Computer Vision and Pattern Recognition

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