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Proceedings Paper

Localization of wearable users using invisible retro-reflective markers and an IR camera
Author(s): Yusuke Nakazato; Masayuki Kanbara; Naokazu Yokoya
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Paper Abstract

This paper describes a localization method for wearable computer users. To realize applications of wearable computers like a navigation system, the position of a user is required for location-based services. Many localization methods in indoor environments have been proposed. One of the methods estimates user's position using IR beacons or visual markers. However, these methods have same problems concerning power supply and/or undesirable visual effects. In order to avoid the problems, we propose a new localization method which is based on using an IR camera and invisible markers consisting of translucent retro-reflectors. In the proposed method, to extract the regions of the markers from the captured images stably, the camera captures the reflection of IR LEDs which are flashed on and off synchronously.

Paper Details

Date Published: 22 March 2005
PDF: 8 pages
Proc. SPIE 5664, Stereoscopic Displays and Virtual Reality Systems XII, (22 March 2005); doi: 10.1117/12.586382
Show Author Affiliations
Yusuke Nakazato, Nara Institute of Science and Technology (Japan)
Masayuki Kanbara, Nara Institute of Science and Technology (Japan)
Naokazu Yokoya, Nara Institute of Science and Technology (Japan)

Published in SPIE Proceedings Vol. 5664:
Stereoscopic Displays and Virtual Reality Systems XII
Andrew J. Woods; Mark T. Bolas; John O. Merritt; Ian E. McDowall, Editor(s)

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