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Applied Optics

Applied Optics


  • Vol. 28, Iss. 5 — Mar. 1, 1989
  • pp: 1027–1032

Single spatial light modulator joint transform correlator

Bahram Javidi and Joseph L. Horner  »View Author Affiliations

Applied Optics, Vol. 28, Issue 5, pp. 1027-1032 (1989)

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We describe a joint Fourier transform image correlator that employs thresholding at both the input plane and the Fourier plane. This suggests using a single binary spatial light modulator (SLM) to read in sequentially the binarized input signal and the binarized Fourier transform interference intensity. The performance of the single SLM joint Fourier transform correlator (JTC) is compared with that of the classical JTC in the areas of correlation peak intensity, peak-to-sidelobe ratio, signal-to-noise ratio (SNR), and correlation width. We show that the single SLM JTC outperforms the classical JTC in all such areas. Using a single binary SLM results in significant reduction in cost, size and complexity of the system.

© 1989 Optical Society of America

Original Manuscript: April 22, 1988
Published: March 1, 1989

Bahram Javidi and Joseph L. Horner, "Single spatial light modulator joint transform correlator," Appl. Opt. 28, 1027-1032 (1989)

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  1. B. Javidi, C. J. Kuo, “Joint Transform Image Correlation Using a Binary Spatial Light Modulator at the Fourier Plane,” Appl. Opt. 27, 663 (1988);J. Opt. Soc. Am. A 4(13), P86 (1987). [CrossRef] [PubMed]
  2. B. Javidi et al., “Bipolar Joint Transform Correlation,” Proc. Soc. Photo-Opt. Instrum. Eng. 956, 120 (1988).
  3. B. Javidi, S. F. Odeh, “Multiple Object Identification by Bipolar Joint Transform Correlation,” Opt. Eng. 27, 295 (1988). [CrossRef]
  4. C. S. Weaver, J. W. Goodman, “A Technique for Optically Convolving Two Functions,” Appl. Opt. 5, 1248 (1966). [CrossRef] [PubMed]
  5. J. E. Rau, “Detection of Differences in Real Distributions,” J. Opt. Soc. Am. 56, 1490 (1966). [CrossRef]
  6. J. L. Horner, P. D. Gianino, “Phase-Only Matched Filtering,” Appl. Opt. 23, 812 (1984). [CrossRef] [PubMed]
  7. J. L. Horner, J. R. Leger, “Pattern Recognition with Binary Phase-Only Filters,” Appl. Opt. 24, 609 (1985). [CrossRef] [PubMed]
  8. J. L. Horner, H. O. Bartelt, “Two-Bit Correlation,” Appl. Opt. 24, 2889 (1985). [CrossRef] [PubMed]
  9. B. Javidi, D. Gregory, J. L. Horner, “Single Modulator Joint Transform Correlator Architectures,” Appl. Opt. 28, 411 (1989). [CrossRef] [PubMed]
  10. J. L. Horner, B. Javidi, “Single SLM Joint Transform Correlator,” Invention Disclosure, date of record 24Feb.1988.
  11. B. Javidi, “Analysis of the Bipolar Joint Transform Optical Correlator,” Proc. Soc. Photo-Opt. Instrum. Eng. 977, 307 (1988).
  12. M. A. Flavin, J. L. Horner, “Amplitude Encoded Phase-Only Filter,” Proc. Soc. Photo-Opt. Instrum. Eng. 938, 261 (1988).

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