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Proceedings Paper

Miniature ruggedized optical correlator (MROC) modules for space applications
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 small, low-power, low-cost pattern recognition systems that are capable of locating and identifying objects. Space applications require additional features such as environmental ruggedness, stability, and maintenance-free operation. Miniature optical correlators can perform two-dimensional 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, maintenance-free operation and weight requirements of military and commercial space 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 (PLC) device in the input plane for high light efficiency and incorporates a reflective magneto optic spatial light modulator (RMOSLMTM) device in the filter plane for very high speed operation. MROC II breadboard tests demonstrated excellent correlation peaks, i.e. excellent discrimination (SNR>25), at pattern matching rates of 1920 per second on images of military vehicles.

Paper Details

Date Published: 17 October 1997
PDF: 7 pages
Proc. SPIE 3124, Photonics for Space Environments V, (17 October 1997); doi: 10.1117/12.283875
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, Litton Data Systems (United States)


Published in SPIE Proceedings Vol. 3124:
Photonics for Space Environments V
Edward W. Taylor, Editor(s)

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