Incoherent image intensity normalization, contour enhancement, a

Details Incoherent image intensity normalization, contour enhancement, a Incoherent image intensity normalization, contour enhancement, a

1987-04-06

1988-05-10

Miller, Stanley D.

350331R, 350342, 35016212, G02F 113, G02B 2746

Patent

active

047430974

ABSTRACT:
Incoherent optical processing techniques are shown which demonstrate image intensity normalization and contour enhancement. A new type of incoherent optical correlator which combines a model of the human neural system with an intensity image convolver. The processor's principal element is a Hughes liquid crystal light valve (LCLV). All components are commercially available and used without modification except for a liquid crystal television (LCLV). In operation the invention can be used as either a pre-processor to intensity normalize and edge enhance video scenes for use in pattern recognition applications or as a real-time pattern recognition device within itself, with the addition of an LCTV.

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D. Gregory-"Acoustooptically Made and Addressed Fourier Transform Matched lters" pp. 331-333-Applied Optics-vol. 25, No. 3, Feb. 1986.
W. P. Bleha-"Application of the LCLV to Real-Time Optical Data Processing" pp. 371-384-Optical Engineering-vol. 17, No. 4-1978.
D. G. Nichol-"Edge Enhancement for Autocorrelation and Chord Function Processing" pp. 242-246-Optics Communciations-Dec. 1983.
R. Lewis-"Real Time Coherent Optical Edge Enhancement" pp. 161-162-Applied Optics-vol. 17, No. 2-Jan. 1978.

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