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Proceedings Paper

Model-based registration of multi-rigid-body for augmented reality
Author(s): Sei Ikeda; Hajime Hori; Masataka Imura; Yoshitsugu Manabe; Kunihiro Chihara
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Paper Abstract

Geometric registration between a virtual object and the real space is the most basic problem in augmented reality. Model-based tracking methods allow us to estimate three-dimensional (3-D) position and orientation of a real object by using a textured 3-D model instead of visual marker. However, it is difficult to apply existing model-based tracking methods to the objects that have movable parts such as a display of a mobile phone, because these methods suppose a single, rigid-body model. In this research, we propose a novel model-based registration method for multi rigid-body objects. For each frame, the 3-D models of each rigid part of the object are first rendered according to estimated motion and transformation from the previous frame. Second, control points are determined by detecting the edges of the rendered image and sampling pixels on these edges. Motion and transformation are then simultaneously calculated from distances between the edges and the control points. The validity of the proposed method is demonstrated through experiments using synthetic videos.

Paper Details

Date Published: 27 January 2009
PDF: 8 pages
Proc. SPIE 7238, The Engineering Reality of Virtual Reality 2009, 723802 (27 January 2009); doi: 10.1117/12.805401
Show Author Affiliations
Sei Ikeda, Nara Institute of Science and Technology (Japan)
Hajime Hori, Nara Institute of Science and Technology (Japan)
Masataka Imura, Nara Institute of Science and Technology (Japan)
Yoshitsugu Manabe, Nara Institute of Science and Technology (Japan)
Kunihiro Chihara, Nara Institute of Science and Technology (Japan)


Published in SPIE Proceedings Vol. 7238:
The Engineering Reality of Virtual Reality 2009
Ian E. McDowall; Margaret Dolinsky, Editor(s)

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