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Permanent link (DOI): https://doi.org/10.7939/R3HD8P

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Multi-modal registration of maxillodental CBCT and photogrammetry data over time Open Access

Descriptions

Other title
Subject/Keyword
Cone-beam Computed Tomography
Multi-modal image registration
Stereo Photogrammetry
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Bolandzadeh-Fasaie, Niousha
Supervisor and department
Bischof, Walter (Computing Science)
Boulager, Pierre (Computing Science)
Examining committee member and department
Ray, Nilanjan (Computing Science)
Flores-Mir, Carlos (Dentistry)
Department
Department of Computing Science
Specialization

Date accepted
2010-12-23T17:33:01Z
Graduation date
2011-06
Degree
Master of Science
Degree level
Master's
Abstract
This thesis aims at introducing a methodology for clinical evaluation of orthodontic treatments using three-dimensional dento-maxillofacial images. Since complementary information is achieved by integrating multiple modalities, cone-beam computed tomography (CBCT) and stereophotogrammetry technologies are used to develop a methodology for tracking bone and facial skin variations over time. Our proposed methodology consists of a two-phase registration procedure. In the first phase, the multimodal images are registered using an extrinsic landmark-based registration followed by a robust Iterative Closest Points (ICP) method. In the second phase, by utilizing specific anatomical landmarks, single modal images of the skull and the mandible are registered over time using an intrinsic landmark-based registration method followed by the robust ICP algorithm. The results of registrations show that the signed error distribution of both mandible and skull registrations follow a normal distribution while all the errors fall within the CBCT precision range.
Language
English
DOI
doi:10.7939/R3HD8P
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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