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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 27, Iss. 23 — Dec. 1, 1988
  • pp: 4977–4984

Optical projection correlations

David P. Casasent and Jung-Hee Song  »View Author Affiliations


Applied Optics, Vol. 27, Issue 23, pp. 4977-4984 (1988)
http://dx.doi.org/10.1364/AO.27.004977


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Abstract

The correlation of several 1-D projections of a 2-D image are considered for pattern recognition. A theoretical analysis and SNR comparison to 2-D correlations are provided with successful simulated results that show that the use of two or three 1-D correlations can identify and discriminate the 26 characters in the alphabet. Several possible 1-D optical correlators to implement projection correlations are described.

© 1988 Optical Society of America

History
Original Manuscript: April 12, 1988
Published: December 1, 1988

Citation
David P. Casasent and Jung-Hee Song, "Optical projection correlations," Appl. Opt. 27, 4977-4984 (1988)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-27-23-4977


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References

  1. D. Casasent, W. T. Chang, “Correlation Synthetic Discriminant Functions,” Appl. Opt. 25, 2343 (1986). [CrossRef] [PubMed]
  2. A. Mahalanobis, B. V. K. Vijaya Kumar, D. Casasent, “Minimum Average Correlation Energy (MACE) Filters,” Appl. Opt. 26, 3633 (1987). [CrossRef] [PubMed]
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  9. K. T. Ma, G. Kusic, “An Algorithm for Distortion Analysis in Two-Dimensional Patterns Using Its Projections,” in Proceedings, Seventh New England Bioengineering Conference (1979), p. 177.
  10. P. Breuer, M. Vajita, “Structural Character Recognition by Forming Projections,” Probl. Control Inf. Theory 4, 339 (1975).
  11. D. Casasent, J. Lambert, “General I and Q Data Processing on a Multichannel AO System,” Appl. Opt. 25, 3217 (1986). [CrossRef] [PubMed]

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