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Applied Optics

Applied Optics


  • Vol. 28, Iss. 9 — May. 1, 1989
  • pp: 1611–1613

Quad-phase correlation filters for pattern recognition

Fred M. Dickey and Bruce D. Hansche  »View Author Affiliations

Applied Optics, Vol. 28, Issue 9, pp. 1611-1613 (1989)

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A quad-phase-only filter (QPOF) is introduced. It is shown that the QPOF can have improved correlation response and signal-to-noise ratio with respect to the Hartley binary phase-only filter for some objects.

© 1989 Optical Society of America

Original Manuscript: February 13, 1988
Published: May 1, 1989

Fred M. Dickey and Bruce D. Hansche, "Quad-phase correlation filters for pattern recognition," Appl. Opt. 28, 1611-1613 (1989)

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  1. D. Psaltis, E. G. Paek, S. S. Venkatesh, “Optical Image Correlation with a Binary Spatial Light Modulator,” Opt. Eng. 23, 698–704 (1984). [CrossRef]
  2. J. L. Horner, J. Leger, “Pattern Recognition with Binary Phase-Only Filters,” Appl. Opt. 24, 609–611 (1985). [CrossRef] [PubMed]
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  5. F. M. Dickey, K. T. Stalker, J. J. Mason, “Bandwidth Considerations for Binary Phase-Only Filters,” Appl. Opt. 27, 3811–3818 (1988). [CrossRef] [PubMed]
  6. R. Kallman, “Optimal Low Noise Phase-Only and Binary Phase-Only Optical Correlation Filters for Threshold Detectors,” Appl. Opt. 25, 4216–4217 (1986). [CrossRef] [PubMed]
  7. F. M. Dickey, J. J. Mason, K. T. Stalker, “Analysis of Binarized Hartley Phase-Only Filter Performance with Respect to Stochastic Noise,” Proc. Soc. Photo-Opt. Instrum. Eng. 938, 2000 (1988), and Opt. Eng. 28, 8–13 (1989).
  8. D. L. Flannery, J. S. Loomis, M. E. Mitkovich, “Design Elements of Binary Phase-Only Correlation Filters,” Appl. Opt. 27, 4231–4235 (1988). [CrossRef] [PubMed]
  9. B. V. K. Vijaya Kumar, Z. Bahri, “Phase-Only Filters with Improved Signal to Noise Ratio,” Appl. Opt. 28, 250–257 (1989). [CrossRef]
  10. B. D. Hansche, J. J. Mason, F. M. Dickey, “Quad-Phase-Only Filter Implementation,” submitted to Appl. Opt.

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