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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 15, Iss. 7 — Jul. 1, 1976
  • pp: 1795–1799

Position, rotation, and scale invariant optical correlation

David Casasent and Demetri Psaltis  »View Author Affiliations


Applied Optics, Vol. 15, Issue 7, pp. 1795-1799 (1976)
http://dx.doi.org/10.1364/AO.15.001795


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Abstract

A new optical transformation that combines geometrical coordinate transformations with the conventional optical Fourier transform is described. The resultant transformations are invariant to both scale and rotational changes in the input object or function. Extensions of these operations to optical pattern recognition and initial experimental demonstrations are also presented.

© 1976 Optical Society of America

History
Original Manuscript: January 8, 1976
Published: July 1, 1976

Citation
David Casasent and Demetri Psaltis, "Position, rotation, and scale invariant optical correlation," Appl. Opt. 15, 1795-1799 (1976)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-15-7-1795

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