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Optical Engineering

Practical Optical Fourier Analysis For High Speed Inspection
Author(s): David Clark; David P. Casasent
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Paper Abstract

A fully engineered real-time (15 objects/s) optical Fourier transform feature space processor for product inspection is described. This unit is presently undergoing evaluation at several sites. This paper discusses the feature space techniques employed, the advantages of the Fourier transform reduced-dimensionality feature space used, and several of its properties. Emphasis is given to initial performance data obtained in many diverse applications.

Paper Details

Date Published: 1 May 1988
PDF: 7 pages
Opt. Eng. 27(5) 275365 doi: 10.1117/12.7976685
Published in: Optical Engineering Volume 27, Issue 5
Show Author Affiliations
David Clark, Global Holonetics Corporation (United States)
David P. Casasent, Carnegie Mellon University (United States)


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