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Optical Engineering

Performance of a second-generation miniature ruggedized optical correlator module
Author(s): James P. Karins; Stuart A. Mills; James R. Ryan; Robert Barry Dydyk; John R. Lucas
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Paper Abstract

Many image processing applications require a small, lowpower, low-cost pattern recognition system that is capable of locating and identifying objects. Miniature optical correlators can perform 2-D pattern recognition at greater rates than digital platforms of equivalent size, power and/or weight. The patented miniature ruggedized optical correlator (MROC™) module is built to meet the environmental, size, power, and weight requirements of military and rugged commercial applications, and at a cost that permits wide deployment of the capability. The second version of the MROC module consists of a ferroelectric liquid crystal (FLC) device in the input plane for high light efficiency and incorporates a reflective magnet-optic spatial light modulator (RMOSLM™) device in the filter plane for very high speed operation. The correlator has a volume of approximately 20 in.3. MROC II breadboard tests demonstrated excellent correlation peaks, i.e., excellent discrimination (SNR>25), at pattern matching rates of 1920/s on images of military vehicles.

Paper Details

Date Published: 1 October 1997
PDF: 7 pages
Opt. Eng. 36(10) doi: 10.1117/1.601468
Published in: Optical Engineering Volume 36, Issue 10
Show Author Affiliations
James P. Karins, Litton Data Systems (United States)
Stuart A. Mills, Litton Data Systems (United States)
James R. Ryan, Litton Data Systems (United States)
Robert Barry Dydyk, Litton Data Systems (United States)
John R. Lucas, DataVision (United States)

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