Abstract

We investigate the feasibility of an optoelectronic edge detection system, using a diffusion neural network. The diffusion neural network performs the Gaussian operation efficiently by means of the diffusion process. We apply this in producing the difference-of-two-Gaussians function, which can detect the intensity changes of an image. This system is composed of a spatial light modulator, a two-dimensional image sensor array, and a computer. The processing of the system can be done at a rate of 30 frames/s, making it potentially applicable to systems that require edge detection of an image in real time.

© 1995 Optical Society of America

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References

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  1. J. S. Lim, Two-Dimensional Signal and Image Processing (Prentice-Hall, Englewood Cliffs, N.J., 1990).
  2. S.-T. Bow, Pattern Recognition and Image Preprocessing (Dekker, New York, 1992).
  3. N. Kanopoulos, L. Baker, IEEE J. Solid-State Circuits 23, 358 (1988).
    [CrossRef]
  4. P. A. Ruetz, R. W. Broderson, IEEE J. Solid-State Circuits 22, 233 (1987).
    [CrossRef]
  5. A. K. Cherri, M. A. Karim, Appl. Opt. 28, 4644 (1989).
    [CrossRef] [PubMed]
  6. A. A. S. Awwal, M. A. Karim, Microwave Opt. Technol. Lett. 1, 377 (1988).
    [CrossRef]
  7. I. Ahmed, I. Andonovic, B. Culshaw, Opt. Lett. 18, 284 (1993).
    [CrossRef] [PubMed]
  8. Ph. Lalanne, P. Chavel, P. Garda, F. Devos, Opt. Lett. 18, 1564 (1993).
    [CrossRef] [PubMed]
  9. R. C. Gonzalez, R. E. Wood, Digital Image Processing (Addison-Wesley, Reading, Mass., 1992).
  10. Y. Kwon, K. G. Nam, T.-H. Yoon, J. C. Kim, H. K. Liu, in IEEE International Conference on Neural Networks (Institute of Electrical and Electronics Engineers, New York, 1994), pp. 4220–4225.
  11. J. C. Kim, C. S. Cho, K. G. Nam, T.-H. Yoon, H. K. Liu, Proc. Soc. Photo-Opt. Instrum. Eng. 2321, 660 (1994).
  12. D. Marr, Vision. A Computational Investigation into the Human Representation and Processing of Visual Information (Freeman, San Francisco, Calif., 1982).
    [PubMed]

1994 (1)

J. C. Kim, C. S. Cho, K. G. Nam, T.-H. Yoon, H. K. Liu, Proc. Soc. Photo-Opt. Instrum. Eng. 2321, 660 (1994).

1993 (2)

1989 (1)

1988 (2)

A. A. S. Awwal, M. A. Karim, Microwave Opt. Technol. Lett. 1, 377 (1988).
[CrossRef]

N. Kanopoulos, L. Baker, IEEE J. Solid-State Circuits 23, 358 (1988).
[CrossRef]

1987 (1)

P. A. Ruetz, R. W. Broderson, IEEE J. Solid-State Circuits 22, 233 (1987).
[CrossRef]

Ahmed, I.

Andonovic, I.

Awwal, A. A. S.

A. A. S. Awwal, M. A. Karim, Microwave Opt. Technol. Lett. 1, 377 (1988).
[CrossRef]

Baker, L.

N. Kanopoulos, L. Baker, IEEE J. Solid-State Circuits 23, 358 (1988).
[CrossRef]

Bow, S.-T.

S.-T. Bow, Pattern Recognition and Image Preprocessing (Dekker, New York, 1992).

Broderson, R. W.

P. A. Ruetz, R. W. Broderson, IEEE J. Solid-State Circuits 22, 233 (1987).
[CrossRef]

Chavel, P.

Cherri, A. K.

Cho, C. S.

J. C. Kim, C. S. Cho, K. G. Nam, T.-H. Yoon, H. K. Liu, Proc. Soc. Photo-Opt. Instrum. Eng. 2321, 660 (1994).

Culshaw, B.

Devos, F.

Garda, P.

Gonzalez, R. C.

R. C. Gonzalez, R. E. Wood, Digital Image Processing (Addison-Wesley, Reading, Mass., 1992).

Kanopoulos, N.

N. Kanopoulos, L. Baker, IEEE J. Solid-State Circuits 23, 358 (1988).
[CrossRef]

Karim, M. A.

A. K. Cherri, M. A. Karim, Appl. Opt. 28, 4644 (1989).
[CrossRef] [PubMed]

A. A. S. Awwal, M. A. Karim, Microwave Opt. Technol. Lett. 1, 377 (1988).
[CrossRef]

Kim, J. C.

J. C. Kim, C. S. Cho, K. G. Nam, T.-H. Yoon, H. K. Liu, Proc. Soc. Photo-Opt. Instrum. Eng. 2321, 660 (1994).

Y. Kwon, K. G. Nam, T.-H. Yoon, J. C. Kim, H. K. Liu, in IEEE International Conference on Neural Networks (Institute of Electrical and Electronics Engineers, New York, 1994), pp. 4220–4225.

Kwon, Y.

Y. Kwon, K. G. Nam, T.-H. Yoon, J. C. Kim, H. K. Liu, in IEEE International Conference on Neural Networks (Institute of Electrical and Electronics Engineers, New York, 1994), pp. 4220–4225.

Lalanne, Ph.

Lim, J. S.

J. S. Lim, Two-Dimensional Signal and Image Processing (Prentice-Hall, Englewood Cliffs, N.J., 1990).

Liu, H. K.

J. C. Kim, C. S. Cho, K. G. Nam, T.-H. Yoon, H. K. Liu, Proc. Soc. Photo-Opt. Instrum. Eng. 2321, 660 (1994).

Y. Kwon, K. G. Nam, T.-H. Yoon, J. C. Kim, H. K. Liu, in IEEE International Conference on Neural Networks (Institute of Electrical and Electronics Engineers, New York, 1994), pp. 4220–4225.

Marr, D.

D. Marr, Vision. A Computational Investigation into the Human Representation and Processing of Visual Information (Freeman, San Francisco, Calif., 1982).
[PubMed]

Nam, K. G.

J. C. Kim, C. S. Cho, K. G. Nam, T.-H. Yoon, H. K. Liu, Proc. Soc. Photo-Opt. Instrum. Eng. 2321, 660 (1994).

Y. Kwon, K. G. Nam, T.-H. Yoon, J. C. Kim, H. K. Liu, in IEEE International Conference on Neural Networks (Institute of Electrical and Electronics Engineers, New York, 1994), pp. 4220–4225.

Ruetz, P. A.

P. A. Ruetz, R. W. Broderson, IEEE J. Solid-State Circuits 22, 233 (1987).
[CrossRef]

Wood, R. E.

R. C. Gonzalez, R. E. Wood, Digital Image Processing (Addison-Wesley, Reading, Mass., 1992).

Yoon, T.-H.

J. C. Kim, C. S. Cho, K. G. Nam, T.-H. Yoon, H. K. Liu, Proc. Soc. Photo-Opt. Instrum. Eng. 2321, 660 (1994).

Y. Kwon, K. G. Nam, T.-H. Yoon, J. C. Kim, H. K. Liu, in IEEE International Conference on Neural Networks (Institute of Electrical and Electronics Engineers, New York, 1994), pp. 4220–4225.

Appl. Opt. (1)

IEEE J. Solid-State Circuits (2)

N. Kanopoulos, L. Baker, IEEE J. Solid-State Circuits 23, 358 (1988).
[CrossRef]

P. A. Ruetz, R. W. Broderson, IEEE J. Solid-State Circuits 22, 233 (1987).
[CrossRef]

Microwave Opt. Technol. Lett. (1)

A. A. S. Awwal, M. A. Karim, Microwave Opt. Technol. Lett. 1, 377 (1988).
[CrossRef]

Opt. Lett. (2)

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

J. C. Kim, C. S. Cho, K. G. Nam, T.-H. Yoon, H. K. Liu, Proc. Soc. Photo-Opt. Instrum. Eng. 2321, 660 (1994).

Other (5)

D. Marr, Vision. A Computational Investigation into the Human Representation and Processing of Visual Information (Freeman, San Francisco, Calif., 1982).
[PubMed]

J. S. Lim, Two-Dimensional Signal and Image Processing (Prentice-Hall, Englewood Cliffs, N.J., 1990).

S.-T. Bow, Pattern Recognition and Image Preprocessing (Dekker, New York, 1992).

R. C. Gonzalez, R. E. Wood, Digital Image Processing (Addison-Wesley, Reading, Mass., 1992).

Y. Kwon, K. G. Nam, T.-H. Yoon, J. C. Kim, H. K. Liu, in IEEE International Conference on Neural Networks (Institute of Electrical and Electronics Engineers, New York, 1994), pp. 4220–4225.

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Figures (6)

Fig. 1
Fig. 1

Typical one-dimensional example of diffusion (diffusion coefficient, 1/6; number of diffusions, n).

Fig. 2
Fig. 2

Diffusion neural network.

Fig. 3
Fig. 3

Diffusion neural network model for DOG processing.

Fig. 4
Fig. 4

Experimental setup.

Fig. 5
Fig. 5

Point-spread functions of a SLM. Δy is the distance between the CRT SLM and the photosensor array.

Fig. 6
Fig. 6

(a) A 256 × 256 input image, (b) the captured image, (c) the obtained edges.

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