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Proceedings Paper

An imaging system based on laser optical feedback for fog vision applications
Author(s): E. Belin; V. Boucher
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Paper Abstract

The Laboratoire Régional des Ponts et Chaussées d'Angers - LRPC of Angers is currently studying the feasability of applying an optical technique based on the principle of the laser optical feedback to long distance fog vision. Optical feedback set up allows the creation of images on roadsigns. To create artificial fog conditions we used a vibrating cell that produces a micro-spray of water according to the principle of acoustic cavitation. To scale the sensitivity of the system under duplicatible conditions we also used optical densities linked to first-sight visibility distances. The current system produces, in a few seconds, 200 × 200 pixel images of a roadsign seen through dense artificial fog.

Paper Details

Date Published: 25 August 2008
PDF: 11 pages
Proc. SPIE 7088, Remote Sensing Applications for Aviation Weather Hazard Detection and Decision Support, 70880N (25 August 2008); doi: 10.1117/12.798932
Show Author Affiliations
E. Belin, Lab. Central des Ponts et Chaussées (France)
Lab. Régional des Ponts et Chaussées (France)
V. Boucher, Lab. Régional des Ponts et Chaussées (France)


Published in SPIE Proceedings Vol. 7088:
Remote Sensing Applications for Aviation Weather Hazard Detection and Decision Support
Wayne F. Feltz; John J. Murray, Editor(s)

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