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Proceedings Paper

Optical roadsign recognition to improve active safety features
Author(s): Laurent Guibert; Gilles Keryer; Mondher Attia
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Paper Abstract

With its constant concern to improve road safety P.S.A. Peugeot Citroen (France) wants to make progress on active safety by developing an autonomous system providing fast practical information to the driver. Recent advances in coupling liquid crystal spatial light modulators (SLMs) with silicon VLSI chips have opened new opportunities in optical parallel processing and computing. It is now possible to construct compact, reliable, and reconfigurable optical hardware for industrial use. We have chosen the task of road sign recognition, with emphasis on speed limit signs, to demonstrate the feasibility of such an optical processor which uses fast switching elements based on ferroelectric liquid crystal technology.

Paper Details

Date Published: 25 October 1993
PDF: 5 pages
Proc. SPIE 1959, Optical Pattern Recognition IV, (25 October 1993); doi: 10.1117/12.160292
Show Author Affiliations
Laurent Guibert, Telecom Bretagne (France)
Gilles Keryer, Ecole Navale (France)
Mondher Attia, P.S.A. Peugeot Citroen (France)


Published in SPIE Proceedings Vol. 1959:
Optical Pattern Recognition IV
David P. Casasent, Editor(s)

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