Refined route instructions using topological stages of closeness

Authors:
Markus Wuersch;David Caduff
Affiliations:
Target Technology Center, Intelligent Spatial Technologies, Orono, ME;Department of Geography, University of Zurich – Irchel, Zurich, Switzerland
Venue:
W2GIS'05 Proceedings of the 5th international conference on Web and Wireless Geographical Information Systems
Year:
2005

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Abstract

In pedestrian navigation, navigators are free to choose any passable way. Because of this characteristic, accurate route instructions are important when navigating from waypoint to waypoint. In this paper, a theoretical framework is described for dealing with position uncertainty in pedestrian guiding systems. Stages of closeness are defined based on the topological relation between the navigator and a waypoint. These stages of closeness allow for refining route instructions and, therefore, leading to more accurate navigation and increased efficiency of the system.