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Roth, Samuel Hans Martin
Gross, Markus H.
Sailer, Hermann F.
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Rights / licenseIn Copyright - Non-Commercial Use Permitted
The accurate prediction of the post-surgical facial shape is of paramount importance for surgical planning in facial surgery. In this paper we present a framework for facial surgery simulation which is based on volumetric finite element modeling. We contrast conventional procedures for surgical planning against our system by accompanying a patient during the entire process of planning, medical treatment and simulation. In various preprocessing steps a 3D physically based facial model is reconstructed from CT and laser range scans. All geometric and topological changes are modeled interactively using Alias.™ Applying fully 3D volumetric elasticity allows us to represent important volumetric effects such as incompressibility in a natural and physically accurate way. For computational efficiency, we devised a novel set of prismatic shape functions featuring a globally C1-continuous surface in combination with a C0 interior. Not only is it numerically accurate, but this construction enables us to compute smooth and visually appealing facial shapes. An extended evaluation and quantitative analysis of a clinical test series with several female and male patients clearly demonstrates the performance of our framework Show more
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Journal / seriesCS technical report / ETH Zurich
PublisherETH Zurich, Computer Science Department, Institute of Scientific Computing
SubjectGESICHTSCHIRURGIE; Data Reconstruction; COMPUTERSIMULATION; Finite Element Method; COMPUTERANWENDUNGEN IN DER MEDIZIN UND IM GESUNDHEITSWESEN; FACIAL SURGERY; COMPUTER APPLICATIONS IN MEDICINE AND HEALTH CARE; Facial Modeling; COMPUTER SIMULATION; Facial Surgery Simulation
Organisational unit02150 - Departement Informatik / Department of Computer Science
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