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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 27, Iss. 22 — Nov. 15, 1988
  • pp: 4653–4659

Industrial use of a real-time optical inspection system

David Casasent and Jeffrey Richards  »View Author Affiliations


Applied Optics, Vol. 27, Issue 22, pp. 4653-4659 (1988)
http://dx.doi.org/10.1364/AO.27.004653


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Abstract

Real-time optical inspection techniques are discussed and implemented on laboratory systems. Specifically, we show how Fourier transform and Hough transform data can be used in an industrial inspection application. We also discuss how a 1-D synthetic discriminant function is used for label inspection. Real-time optical Hough transform inspection data using a 2-D spatial light modulator is presented and discussed. A color liquid crystal television (LCTV) is used as the input transducer to provide real-time data. New methods to process color image data on color LCTVs are detailed. A new high speed acoustooptic architecture to generate Hough transform slices is also detailed. A specific product inspection case study is discussed.

© 1988 Optical Society of America

History
Original Manuscript: April 8, 1988
Published: November 15, 1988

Citation
David Casasent and Jeffrey Richards, "Industrial use of a real-time optical inspection system," Appl. Opt. 27, 4653-4659 (1988)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-27-22-4653


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References

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