Localization of wearable users using invisible retro-reflective markers and an IR camera

Yusuke Nakazato; Masayuki Kanbara; Naokazu Yokoya

doi:10.1117/12.586382

22 March 2005 Localization of wearable users using invisible retro-reflective markers and an IR camera

Yusuke Nakazato, Masayuki Kanbara, Naokazu Yokoya

Proceedings Volume 5664, Stereoscopic Displays and Virtual Reality Systems XII; (2005) https://doi.org/10.1117/12.586382
Event: Electronic Imaging 2005, 2005, San Jose, California, United States

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.

Citation Download Citation

Yusuke Nakazato, Masayuki Kanbara, and Naokazu Yokoya "Localization of wearable users using invisible retro-reflective markers and an IR camera", Proc. SPIE 5664, Stereoscopic Displays and Virtual Reality Systems XII, (22 March 2005); https://doi.org/10.1117/12.586382

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