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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 8 — Mar. 10, 2001
  • pp: 1216–1225

Reference Phase-Encoded Fringe-Adjusted Joint Transform Correlation

Abdallah K. Cherri and Mohammad S. Alam  »View Author Affiliations


Applied Optics, Vol. 40, Issue 8, pp. 1216-1225 (2001)
http://dx.doi.org/10.1364/AO.40.001216


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Abstract

A novel reference phase-encoded joint transform correlation technique is proposed for efficient multiple-target detection. The proposed method employs phase encoding for the reference image and nonlinear Fourier plane apodization to optimize the detection performance. Existing joint transform correlators (JTC’s) require multistep on-line processing to eliminate the false alarms. The proposed reference phase-encoded JTC overcomes false-target detection by eliminating the false correlation peaks while alleviating the effects of noise and other artifacts in just one step, thus ensuring higher processing speed. This technique yields only one peak per target instead of a pair of peaks produced by alternate JTC’s. An all-optical implementation for the reference phase-encoded JTC technique is proposed, and computer simulation results are presented.

© 2001 Optical Society of America

OCIS Codes
(100.0100) Image processing : Image processing
(100.4550) Image processing : Correlators

Citation
Abdallah K. Cherri and Mohammad S. Alam, "Reference Phase-Encoded Fringe-Adjusted Joint Transform Correlation," Appl. Opt. 40, 1216-1225 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-8-1216


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References

  1. A. VanderLugt, “Signal detection by complex spatial filtering,” IEEE Trans. Inf. Theory IT-10, 139–145 (1964).
  2. C. S. Weaver and J. W. Goodman, “A technique for optically convolving two functions,” Appl. Opt. 5, 1248–1249 (1966).
  3. F. T. S. Yu and X. J. Lu, “A real-time programmable joint transform correlator,” Opt. Commun. 52, 10–16 (1984).
  4. F. T. S. Yu, Q. W. Song, Y. S. Cheng, and D. A. Gregory, “Comparison of detection efficiencies for VanderLugt and joint transform correlators,” Appl. Opt. 29, 225–232 (1990).
  5. B. Javidi and C. Kuo, “Joint transform image correlation using a binary spatial light modulator at the Fourier plane,”Appl. Opt. 27, 663–665 (1988).
  6. B. Javidi and S. F. Odeh, “Multiple object identification by bipolar joint transform correlation,” Opt. Eng. 27, 295–300 (1988).
  7. B. Javidi, J. Li, A. H. Fazlollahi, and J. Horner, “Binary nonlinear joint transform correlator performance with different thresholding methods under unknown illumination,” Appl. Opt. 24, 886–896 (1995).
  8. M. S. Alam and M. A. Karim, “Improved correlation discrimination in a multiobject bipolar joint transform correlator,” Opt. Laser Technol. 24, 45–50 (1992).
  9. W. B. Hahn and D. L. Flannery, “Design elements of a binary joint transform correlator and selected optimization techniques,” Opt. Eng. 31, 896–905 (1992).
  10. F. T. S. Yu, F. Cheng, T. Nagata, and D. A. Gregory, “Effects of fringe binarization of multi-object joint transform correlation,” Appl. Opt. 28, 2988–2990 (1989).
  11. M. S. Alam and M. A. Karim, “Fringe-adjusted joint transform correlator,” Appl. Opt. 32, 4344–4350 (1993).
  12. M. S. Alam, “Fractional power fringe-adjusted joint transform correlation,” Opt. Eng. 34, 3208–3216 (1995).
  13. M. S. Alam and M. A. Karim, “Multiple target detection using a modified fringe-adjusted joint transform correlator,” Opt. Eng. 33, 1610–1617 (1994).
  14. M. Schönleber, G. Cedilnik, and H. J. Tisiani, “Joint transform correlator subtracting a modified Fourier spectrum,” Appl. Opt. 34, 7532–7537 (1995).
  15. R. K. Wang, L. Shang, and C. R. Chatwin, “Modified fringe-adjusted joint transform correlation subtracting to accommodate noise in the input scene,” Appl. Opt. 35, 286–296 (1996).
  16. F. T. S. Yu, C. Li, and S. Yin, “Comparison of detection efficiency for nonzero-order and conventional joint transform correlation,” Opt. Eng. 28, 52–57 (1998).
  17. M. S. Alam and M. A. Karim, “Joint transform correlation under varying illumination,” Appl. Opt. 32, 4351–4356 (1993).
  18. M. S. Alam, “Multi-target photorefractive fringe-adjusted joint transform correlation,” J. Opt. Mem. Neural Networks 6, 287–294 (1998).
  19. T. Nomura, “Phase-encoded joint transform correlator to reduce the influence of extraneous signals,” Appl. Opt. 37, 3651–3657 (1998).
  20. G. Lu and F. T. S. Yu, “Performance of a phase-transformed input joint transform correlator,” Appl. Opt. 35, 304–313 (1996).
  21. G. Lu, Z. Zhang, S. Wu, and F. T. S. Yu, “Implementation of a non-zero-order joint-transform correlator by use of phase-shifting techniques,” Appl. Opt. 36, 470–483 (1997).
  22. H. E. Michel and A. A. S. Awwal, “Joint Fourier transform correlation with phase thresholding in the Fourier plane,” Opt. Eng. 27, 33–37 (1998).

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