NASA NTRS · 19880000469
Optical Recognition And Tracking Of Objects
Abstract
Separate 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.
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Chao, Tien-Hsin, Liu, Hua-Kuang. 1988-10-01. Optical Recognition And Tracking Of Objects. https://ntrs.nasa.gov/citations/19880000469
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