Abstract

Image correlators are described and experimentally demonstrated that are implemented using optical memory disks to store a large library of reference images.

© 1989 Optical Society of America

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References

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  1. A. Vander Lugt, IEEE Trans. Inf. Theory IT-10, 2 (1964).
  2. B. D. Guenther, C. R. Christensen, J. Upatnieks, IEEE J. Quantum Electron. QE-15, 1348 (1979).
    [CrossRef]
  3. D. Psaltis, Opt. Eng. 23, 1 (1984).
  4. D. Psaltis, E. G. Paek, S. S. Vankatesh, Opt. Eng. 23, 698 (1984).
  5. J. W. Yu, F. H. Mok, D. Psaltis, Proc. Soc. Photo-Opt. Instrum. Eng. 825, 22 (1987).
  6. A. W. Lohmann, H. W. Werlich, Appl. Opt. 10, 670 (1971).
    [CrossRef] [PubMed]

1987 (1)

J. W. Yu, F. H. Mok, D. Psaltis, Proc. Soc. Photo-Opt. Instrum. Eng. 825, 22 (1987).

1984 (2)

D. Psaltis, Opt. Eng. 23, 1 (1984).

D. Psaltis, E. G. Paek, S. S. Vankatesh, Opt. Eng. 23, 698 (1984).

1979 (1)

B. D. Guenther, C. R. Christensen, J. Upatnieks, IEEE J. Quantum Electron. QE-15, 1348 (1979).
[CrossRef]

1971 (1)

1964 (1)

A. Vander Lugt, IEEE Trans. Inf. Theory IT-10, 2 (1964).

Christensen, C. R.

B. D. Guenther, C. R. Christensen, J. Upatnieks, IEEE J. Quantum Electron. QE-15, 1348 (1979).
[CrossRef]

Guenther, B. D.

B. D. Guenther, C. R. Christensen, J. Upatnieks, IEEE J. Quantum Electron. QE-15, 1348 (1979).
[CrossRef]

Lohmann, A. W.

Mok, F. H.

J. W. Yu, F. H. Mok, D. Psaltis, Proc. Soc. Photo-Opt. Instrum. Eng. 825, 22 (1987).

Paek, E. G.

D. Psaltis, E. G. Paek, S. S. Vankatesh, Opt. Eng. 23, 698 (1984).

Psaltis, D.

J. W. Yu, F. H. Mok, D. Psaltis, Proc. Soc. Photo-Opt. Instrum. Eng. 825, 22 (1987).

D. Psaltis, E. G. Paek, S. S. Vankatesh, Opt. Eng. 23, 698 (1984).

D. Psaltis, Opt. Eng. 23, 1 (1984).

Upatnieks, J.

B. D. Guenther, C. R. Christensen, J. Upatnieks, IEEE J. Quantum Electron. QE-15, 1348 (1979).
[CrossRef]

Vander Lugt, A.

A. Vander Lugt, IEEE Trans. Inf. Theory IT-10, 2 (1964).

Vankatesh, S. S.

D. Psaltis, E. G. Paek, S. S. Vankatesh, Opt. Eng. 23, 698 (1984).

Werlich, H. W.

Yu, J. W.

J. W. Yu, F. H. Mok, D. Psaltis, Proc. Soc. Photo-Opt. Instrum. Eng. 825, 22 (1987).

Appl. Opt. (1)

IEEE J. Quantum Electron. (1)

B. D. Guenther, C. R. Christensen, J. Upatnieks, IEEE J. Quantum Electron. QE-15, 1348 (1979).
[CrossRef]

IEEE Trans. Inf. Theory (1)

A. Vander Lugt, IEEE Trans. Inf. Theory IT-10, 2 (1964).

Opt. Eng. (2)

D. Psaltis, Opt. Eng. 23, 1 (1984).

D. Psaltis, E. G. Paek, S. S. Vankatesh, Opt. Eng. 23, 698 (1984).

Proc. Soc. Photo-Opt. Instrum. Eng. (1)

J. W. Yu, F. H. Mok, D. Psaltis, Proc. Soc. Photo-Opt. Instrum. Eng. 825, 22 (1987).

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Figures (5)

Fig. 1
Fig. 1

Optical disk-based Vander Lugt correlator. The reference images are stored on the disk as computer-generated Fourier-transform holograms.

Fig. 2
Fig. 2

Diffraction pattern from a 2-D grating recorded on a write-once optical disk.

Fig. 3
Fig. 3

Optical disk-based correlator implemented by using a photorefractive crystal in the Fourier plane.

Fig. 4
Fig. 4

Incoherent disk-based optical correlator implemented with an acousto-optic scanner. T1, input transparency; L’s, lenses; BS1, beam splitter.

Fig. 5
Fig. 5

Experimental demonstration of the system shown in Fig. 4. (a) The pattern recorded on the optical disk. (b) An oscilloscopetrace of the detector output. (c) A magnified version of the signal shown in (b) revealing the correlations of the individual lines. (d) The 2-D correlation produced by raster recording the signal shown in (b).

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