Accession Number : ADD013014

Title :   Incoherent Image Intensity Normalization, Contour Enhancement, and Pattern Recognition System.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Johnson,John J ; Gregory,Don A ; Kirsch,James C

Report Date : 06 Apr 1987

Pagination or Media Count : 8

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 convoler. 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 (LCTV). 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.

Descriptors :   *PATENT APPLICATIONS, *OPTICAL CORRELATORS, *LIQUID CRYSTALS, *OPTICAL PROCESSING, *KERR CELLS, CONTOURS, IMAGES, INCOHERENCE, INCOHERENT SCATTERING, INTENSITY, METHODOLOGY, NORMALIZING(STATISTICS), OPTIMIZATION, PATTERN RECOGNITION, PROCESSING, REAL TIME, TELEVISION SYSTEMS, VIDEO SIGNALS, VISION

Subject Categories : Electrooptical and Optoelectronic Devices
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE