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Proceedings Paper

New 3D optical digitizer for orthodontic applications
Author(s): Fernando Canal Bienzobas; Federico Dios; Jorge Garcia-Mateos; Alejandro Rivera
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Paper Abstract

A new three-dimensional optical digitizer working with white light and high accuracy has been developed for applications in orthodontic diagnosis, to store and analyze data taken from plaster dental casts. The scanner consists basically of a triangulation device made of a CCD camera and an active light projector using Gray code and the phase stepping method to sample the surfaces under tests. Dense clouds of 3D points of the object's surface, related to the device's reference system, are generated, from which very exact measurements can be taken. This technique allows us to greatly improve the accuracy of results that previously were obtained by using mainly manual methods. Our system has been tested successfully on many different samples.

Paper Details

Date Published: 17 May 2002
PDF: 7 pages
Proc. SPIE 4681, Medical Imaging 2002: Visualization, Image-Guided Procedures, and Display, (17 May 2002); doi: 10.1117/12.466959
Show Author Affiliations
Fernando Canal Bienzobas, Univ. Politecnica de Catalunya (Spain)
Federico Dios, Univ. Politecnica de Catalunya (Spain)
Jorge Garcia-Mateos, Univ. Politecnica de Catalunya (Spain)
Alejandro Rivera, Hospital Sant Joan de Deu (Spain)

Published in SPIE Proceedings Vol. 4681:
Medical Imaging 2002: Visualization, Image-Guided Procedures, and Display
Seong Ki Mun, Editor(s)

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