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26 January 2009 Model-based registration of multi-rigid-body for augmented reality
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Proceedings Volume 7238, The Engineering Reality of Virtual Reality 2009; 723802 (2009)
Event: IS&T/SPIE Electronic Imaging, 2009, San Jose, California, United States
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.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sei Ikeda, Hajime Hori, Masataka Imura, Yoshitsugu Manabe, and Kunihiro Chihara "Model-based registration of multi-rigid-body for augmented reality", Proc. SPIE 7238, The Engineering Reality of Virtual Reality 2009, 723802 (26 January 2009);


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