On the distribution of a deforming triangle

Nirwan Ansari, Edward J. Delp

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


This paper presents the mathematical treatment of a new measure, sphericity, which is used to quantify the similarity between two triangles. Various properties of sphericity such as maximal invariance and its probability density function are derived.

Original languageEnglish (US)
Pages (from-to)1333-1341
Number of pages9
JournalPattern Recognition
Issue number12
StatePublished - 1990

All Science Journal Classification (ASJC) codes

  • Software
  • Signal Processing
  • Computer Vision and Pattern Recognition
  • Artificial Intelligence


  • Affine transform
  • Diffeomorphism
  • Maximal invariant
  • Multivariate normal
  • Non-central Beta
  • Triangular transformation


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