[Acpc-l] Informatikkolloquium: 17.06.2002 17Uhr s.t. Gross: Facial Surgery Planning and Simulation

[Ilse Eppel]

Kolloquium des Fachbereiches Informatik
Sommersemester 2002
Vortrag: 17. Juni 2002;  17 Uhr s.t.
Ort: Zemanek Hörsaal, 1040 Wien
Favoritenstr. 11/Erdgeschoss/roter Bereich

Titel: "Facial Surgery Planning and Simulation"
Prof. Dr. Markus Gross
Computer Graphics Laboratory, ETH Zürich
Contact: grossm@inf.ethz.ch

Abstract: 
This talk will give a survey of our research in facial surgery simulation 
with an emphasis on graphics and physically-based modelling. I will contrast 
conventional procedures for surgical planning to our approach, which 
foresees a fully three-dimensional, realistic prediction of the surgical 
outcome. To this end we will accompany a patient through the entire process 
of planning, medical treatment and simulation. In various preprocessing 
steps a 3D physically-based facial model is reconstructed from CT data and 
laser range scans. The reconstruction process includes skull extraction, 
model registration, segmentation and mesh generation. In a subsequent step, 
we simulate the repositioning of facial bones using a 3D skull model of the 
patient. The resulting deformations are computed by finite element 
representations of the facial skin and soft tissue. This allows us to model 
a variety of effects and phenomena, including incompressibility or 
non-linearities. To facilitate numerical simulation and photorealistic 
visualization we designed various types of shape functions featuring a 
smooth representation of the facial surface. I will demonstrate the 
performance of the method and present the results of quantitative error 
analysis obtained from a clinical case study. A video animation further 
illustrates the procedure.

Short Biography:
Markus Gross is a professor of computer science and the director of the 
computer graphics laboratory of the Swiss Federal Institute of Technology 
(ETH) in Zürich since 1994. He received a degree in electrical and computer 
engineering and a Ph.D. on computer graphics and image analysis, both from 
the University of Saarbrucken, Germany. From 1990 to 1994 Dr. Gross was with 
the Computer Graphics Center in Darmstadt, where he established and directed 
the Visual Computing Group. His research interests include point based 
methods, physics-based modeling and multiresolution analysis. He has widely 
published and lectured on computer graphics and scientific visualization and 
he authored the book "Visual Computing", Springer, 1994. Dr. Gross has 
taught courses at major graphics conferences including SIGGRAPH, IEEE 
Visualization, and Eurographics. He is associate editor of the IEEE Computer 
Graphics and Applications and has served as a member of international 
program committees of major graphics conferences. Dr. Gross has been a 
papers co-chair of the IEEE Visualization '99, the Eurographics 2000, and 
the the IEEE Visualization 2002 conferences.