A geometric interpretation of weak-perspective motion

I. Shimshoni, R. Basri, E. Rivlin

Research output: Contribution to journalArticlepeer-review


We present a geometric interpretation of the problem of motion recovery from three weak-perspective images. Our interpretation is based on reducing the problem of estimating the motion to a problem of finding triangles on a sphere whose angles are known. Using this geometric interpretation a simple method to completely recover the motion parameters using three images is developed. The results of running the algorithm on real images are presented. In addition we describe which of the various motion parameters can be recovered already from two images. Index Terms-Weak-perspective projection structure from motion.

Original languageEnglish
Pages (from-to)252-257
Number of pages6
JournalIEEE Transactions on Pattern Analysis and Machine Intelligence
Issue number3
StatePublished - 1999
Externally publishedYes

ASJC Scopus subject areas

  • Software
  • Artificial Intelligence
  • Applied Mathematics
  • Computer Vision and Pattern Recognition
  • Computational Theory and Mathematics


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