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Proceedings Paper

Scale Invariant Processing Using Multiple Wavelengths
Author(s): Jerome Knopp
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Paper Abstract

A method for optical correlation is discussed that can use a liquid crystal television in the filter plane. Conventional binary phase-only filtering is compared with a binary amplitude approach that uses the sum of the intensities from multiple binary amplitude correlations. One parallel processing implementation is presented that uses three binary amplitude filters, each filter using a different wavelength of light. A computer simulation using synthetic filters shows that a binary amplitude multiple wavelength filter (BANE) that uses ternary phase correction works as well as a conventional binary phase-only filter when used as a scale invariant filter and as a synthetic estimation filter.

Paper Details

Date Published: 1 April 1990
PDF: 7 pages
Proc. SPIE 1194, Optics, Illumination, and Image Sensing for Machine Vision IV, (1 April 1990); doi: 10.1117/12.969842
Show Author Affiliations
Jerome Knopp, The University of Missouri-Columbia (United States)

Published in SPIE Proceedings Vol. 1194:
Optics, Illumination, and Image Sensing for Machine Vision IV
Donald J. Svetkoff, Editor(s)

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