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Proceedings Paper

Pose estimation of teeth through crown-shape matching
Author(s): Vevin Mok; Sim Heng Ong; Kelvin Weng Chiong Foong; Toshiaki Kondo
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Paper Abstract

This paper presents a technique for determining a tooth's pose given a dental plaster cast and a set of generic tooth models. The ultimate goal of pose estimation is to obtain information about the sizes and positions of the roots, which lie hidden within the gums, without the use of X-rays, CT or MRI. In our approach, the tooth of interest is first extracted from the 3D dental cast image through segmentation. 2D views are then generated from the extracted tooth and are matched against a target view generated from the generic model with known pose. Additional views are generated in the vicinity of the best view and the entire process is repeated until convergence. Upon convergence, the generic tooth is superimposed onto the dental cast to show the position of the root. The results of applying the technique to canines demonstrate the excellent potential of the algorithm for generic tooth fitting.

Paper Details

Date Published: 9 May 2002
PDF: 10 pages
Proc. SPIE 4684, Medical Imaging 2002: Image Processing, (9 May 2002); doi: 10.1117/12.467048
Show Author Affiliations
Vevin Mok, National Univ. of Singapore (Singapore)
Sim Heng Ong, National Univ. of Singapore (Singapore)
Kelvin Weng Chiong Foong, National Univ. of Singapore (Singapore)
Toshiaki Kondo, National Univ. of Singapore (Singapore)

Published in SPIE Proceedings Vol. 4684:
Medical Imaging 2002: Image Processing
Milan Sonka; J. Michael Fitzpatrick, Editor(s)

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