Structured Visual Markers for Indoor Pathfinding

By Michael Kalkusch, Thomas Lidy, Michael Knapp, Gerhard Reitmayr, Hannes Kaufmann, and Dieter Schmalstieg

Abstract

We present a mobile augmented reality (AR) system to guide a user through an unfamiliar building to a destination room. The system presents a world-registered wireframe model of the building labeled with directional information in a see-through heads-up display, and a three-dimensional world-in-miniature (WIM) map on a wrist-worn pad that also acts as an input device. Tracking is done using a combination of wall-mounted ARToolKit markers observed by a head-mounted camera, and an inertial tracker. To allow coverage of arbitrarily large areas with a limited set of markers, a structured marker re-use scheme based on graph coloring has been developed.

Reference

M. Kalkusch, T. Lidy, M. Knapp, G. Reitmayr, H. Kaufmann, D. Schmalstieg: "Structured Visual Markers for Indoor Pathfinding"; in: "Proceedings of the First IEEE International Workshop on ARToolKit", IEEE, 2002, ISBN: 0-7803-7680-3.

BibTeX

@incollection{TUW-137073,     author = {Kalkusch, Michael and Lidy, Thomas and Knapp, Michael and Reitmayr, Gerhard and Kaufmann, Hannes and Schmalstieg, Dieter},     title = {Structured Visual Markers for Indoor Pathfinding},     booktitle = {Proceedings of the First IEEE International Workshop on ARToolKit},     year = {2002},     publisher = {IEEE},     url = {http://www.ims.tuwien.ac.at/media/documents/publications/SignPostFinal.pdf},     isbn = {0-7803-7680-3} } Click into the text area and press Ctrl+A/Ctrl+C or ⌘+A/⌘+C to copy the BibTeX into your clipboard… or download the BibTeX.