Security markers for ascertaining navigational information

Gary A. Ross (Inventor), Graham I. Johnson (Inventor), Barrie Clark (Inventor), Simon J. Forrest (Inventor), Christopher P. Ricci (Inventor)

Research output: Patent

Abstract

A method of ascertaining navigational information comprises illuminating a region of a surface incorporating one or more luminescent markers. Emission from the luminescent markers in response to the illumination is detected and processed to ascertain navigational information associated with the processed emission.
Original languageEnglish
Patent numberUS2006/0118738A1
IPCG06K 11/00,G06K 5/00
Filing date2/11/05
Publication statusPublished - 8 Jun 2006
Externally publishedYes

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