Adaptive or a priori filtering for detection of signals corrupte

Details Adaptive or a priori filtering for detection of signals corrupte Adaptive or a priori filtering for detection of signals corrupte

1995-08-24

1999-08-24

Henry, Jon W.

Optical: systems and elements

Diffraction

Using fourier transform spatial filtering

382211, 364822, 36472405, G03B 2156, G06E 300, G06F 1710

Patent

active

059431709

ABSTRACT:
A method for pattern recognition and localization using a joint transform correlator and joint transform correlator. The method includes providing a joint image of a reference image and an input scene image at the input plane of the correlator, receiving the joint image and providing a Fourier transform interference field of the reference image and the input scene image, receiving the Fourier transform interference field and providing a joint power spectrum, compensating for noise prevailing within the input scene image by processing the joint power spectrum to produce a noise compensated joint power spectrum, and receiving the noise compensated joint power spectrum and providing a noise tolerant correlation signal so as to enhance pattern recognition and localization capabilities.

REFERENCES:
patent: 3519992 (1970-07-01), Rau
patent: 3779492 (1973-12-01), Grumet
patent: 3947123 (1976-03-01), Carlson et al.
patent: 4067645 (1978-01-01), Carlson et al.
patent: 4084255 (1978-04-01), Casasent et al.
patent: 4185168 (1980-01-01), Graupe et al.
patent: 4209780 (1980-06-01), Fenimore et al.
patent: 4360799 (1982-11-01), Leighty et al.
patent: 4383734 (1983-05-01), Huignard et al.
patent: 4487476 (1984-12-01), Hester et al.
patent: 4596036 (1986-06-01), Norgren et al.
patent: 4723222 (1988-02-01), Becker et al.
patent: 4765714 (1988-08-01), Horner et al.
patent: 4990925 (1991-02-01), Edelsohn et al.
patent: 5040140 (1991-08-01), Horner
patent: 5054097 (1991-10-01), Flinois et al.
patent: 5111515 (1992-05-01), Javidi
patent: 5119443 (1992-06-01), Javidi
patent: 5148316 (1992-09-01), Horner et al.
patent: 5148502 (1992-09-01), Tsujiuchi
patent: 5151822 (1992-09-01), Hekker et al.
patent: 5175775 (1992-12-01), Iwaki et al.
patent: 5274716 (1993-12-01), Mitsuoka et al.
patent: 5276636 (1994-01-01), Cohn
patent: 5317651 (1994-05-01), Refreqier et al.
patent: 5453844 (1995-09-01), George et al.
patent: 5493444 (1996-02-01), Khoury et al.
patent: 5511019 (1996-04-01), Grycewicz et al.
patent: 5541867 (1996-07-01), Corry et al.
"Optical Signal Processing", A. Vanderlugt John Wiley & Sons Ltd., pp. 236-237 (1962).
"Matched, phase-only, or Inverse Filtering with joint-Transform Correlators", H. Inbar et al, Optic Letters vol. 18 pp. 1657-1659 (1993).
O. K. Ersoy and M. Zeng, "Nonlinear matched filtering", J. Opt. Soc. Am., vol. 6, No. 5, pp. 636-647, May 1989.
C. S. Weaver and J. W. Goodman, "A technique for optically convolving two functions", Applied Optics, vol. 5, No. 7, pp. 1248-1249, Jul. 1966.
Carl W. Helstrom, "Image restoration by the method of least squares", J. Opt. Soc. Am., vol. 57, No. 3, pp. 297-303, Mar. 1967.
n: multicriteria optinization approach, Optics Letters, vol. 15, No. 15, pp. 854-856, Aug. 1990.
Bahram Javidi, Nonlinear joint power spectrum based optical correlation, Applied Optics, vol. 28, No. 12, pp. 2358-2366, Jun. 1989.
T. H. Chao et al, "Optimum correlation detection by prewhitening", Applied Optics, vol. 19, No. 14, Jul. 1980, pp. 2461-2464 (364/822).

Affiliated with

Also associated with

Rating

Adaptive or a priori filtering for detection of signals corrupte does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adaptive or a priori filtering for detection of signals corrupte, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive or a priori filtering for detection of signals corrupte will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-472418