Measuring Shape Circularity

  • Joviša Žunić
  • Kaoru Hirota
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5197)


In this paper we define a new circularity measure. The new measure is easy to compute and, being area based, is robust with respect to noise. It ranges over (0,1] and gives the measured circularity equal to 1 if and only if the measured shape is a circle. The new measure is invariant with respect to translations, rotations and scaling.


shape circularity measure moments 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Joviša Žunić
    • 1
  • Kaoru Hirota
    • 2
  1. 1.Computer ScienceExeter UniversityExeterU.K.
  2. 2.Department of Computational Intelligence and Systems Science, Graduate School of Science and Engineering, Tokyo Institute of TechnologyYokohamaJapan

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