Home // ACHI 2013, The Sixth International Conference on Advances in Computer-Human Interactions // View article
Authors:
Rafael Radkowski
James Oliver
Keywords: augmented reality; hybrid tracking; interaction
Abstract:
In this paper a method for enhanced natural interaction in Augmented Reality (AR) applications is presented. AR applications are interactive applications, designed to facilitate the handling of virtual objects, represented by a physical proxy object. Ideally, interaction should be natural, in that the user should not notice its technical realization. Interaction capability relies on tracking technology, which enables spatial registration of virtual objects in 3D. Markers are a common solution for this. However, the marker must stay in line of sight of a video camera. In highly interactive applications, the user’s hands regularly cover the markers. Thus, the virtual object disappears. This paper describes a hybrid tracking solution, which incorporates marker-based tracking and optical flow-based tracking. The optical flow-based tracking supports the marker-based tracking: it seeks corners of the marker to keep track of them. If no markers are visible, the optical flow tracking extrapolates the position of the object to track. Thus, the virtual object remains visible. A prototype implementation and example application show the feasibility of the solution.
Pages: 444 to 453
Copyright: Copyright (c) IARIA, 2013
Publication date: February 24, 2013
Published in: conference
ISSN: 2308-4138
ISBN: 978-1-61208-250-9
Location: Nice, France
Dates: from February 24, 2013 to March 1, 2013