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Proceedings Paper

Invited Paper Rotation-Invariant Pattern Recognition and Some of Its Limitations
Author(s): H. J. Caulfield; Joseph Shamir
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Paper Abstract

Rotation-invariant pattern recognition is shown to have intrinsic limitations determined by the set of patterns to be recognized and by the specific optical setup. Within these limitations, a general procedure is proposed for the generation of bipolar filters that do not require the sensitive alignment procedures involved in holographic filters and are suitable for superposition synthesis to achieve rotation invariance.

Paper Details

Date Published: 16 June 1986
PDF: 8 pages
Proc. SPIE 0613, Nonlinear Optics and Applications, (16 June 1986); doi: 10.1117/12.960424
Show Author Affiliations
H. J. Caulfield, The University of Alabama in Huntsville (United States)
Joseph Shamir, The University of Alabama in Huntsville (United States)


Published in SPIE Proceedings Vol. 0613:
Nonlinear Optics and Applications
Pochi Yeh, Editor(s)

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