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Optical Recognition And Tracking Of ObjectsSeparate objects moving independently tracked simultaneously. System uses coherent optical techniques to obtain correlation between each object and reference image. Moving objects monitored by charge-coupled-device television camera, output fed to liquid-crystal television (LCTV) display. Acting as spatial light modulator, LCTV impresses images of moving objects on collimated laser beam. Beam spatially low-pass filtered to remove high-spatial-frequency television grid pattern.
Document ID
19880000469
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Chao, Tien-Hsin
(Caltech)
Liu, Hua-Kuang
(Caltech)
Date Acquired
August 13, 2013
Publication Date
October 1, 1988
Publication Information
Publication: NASA Tech Briefs
Volume: 12
Issue: 9
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
NPO-17139
Accession Number
88B10469
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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