The Visual Modeling Group
Department of Computer Science, University of Toronto

Visual Modeling is a strongly interdisciplinary research program spanning the fields of computer vision, computer graphics, and artificial life. We also work in medical image analysis, computer-aided design, and related application areas. The theme of our research is analysis and synthesis of visual information by computer, through sophisticated modeling methods based on physical and biological principles.


Demetri Terzopoulos
DT leads the Visual Modeling Group and teaches the advanced Computer Science graduate course Visual Modeling - CSC2530.

Postdoctoral Fellows


Petros Faloutsos; CS PhD candidate.
Petros received an MS in CS in January, 1995, for the thesis ``Physics-based animation and control of flexible characters.''

Radek Grzeszczuk; CS PhD candidate.
Radek received an MS in CS in January, 1994, for the thesis ``Automatic learning of muscle-based locomotion through control abstraction.''

Yuencheng (Victor) Lee; CS PhD candidate.
Victor received an MS in CS in October, 1993, for the thesis ``Construction and animation of functional facial models from range/reflectance data.''

Robert Majka; ECE MS candidate.

Tamer Rabie; ECE PhD candidate.

David Tonnesen; CS PhD candidate.
David is now working at Walt Disney Feature Animation in Burbank, CA.

Qinxin Yu; CS MS candidate.


Ningyan Liu; PhD candidate, EE Dept., University of Sydney.
Ningyan has been been engaged in overseas study with the Visual Modeling Group since July, 1995, on an Australian Postgraduate Research Award and a Commonwealth Science and Industry Research Organization Postgraduate Scholarship.


Former PostDocs

Jorge Lucero; PhD from Shizuoka University, Japan, 1993.
Jorge worked with the group in 1996-97 on a collaborative project (on the simulation of facial dynamics during speech production) with Prof. Kevin Munhall at the speech production and perception lab at Queen's University. Jorge is now Associate Professor in the Department of Mathematics at the University of Brasilia.

Paul Fieguth; PhD from MIT Dept. of EECS in 1995.
Paul was a member of the group in 1996 on an NSERC Postdoctoral Fellowship. He is now Assistant Professor of Systems Design Engineering at the University of Waterloo.

Piotr Jasiobedzki; PhD from Warsaw Univ. of Technology, 1986.
Piotr worked with the Visual Modeling Group from 1993-95 on the ITRC funded project Ophthalmic Image Analysis using Deformable Models. He now works at SPAR Aerospace Ltd.

Former Students

Timothy McInerney; PhD, CS, January, 1997;
Thesis: ``Topologically adaptable deformable models for medical image analysis.''
MS, CS, September, 1992;
Thesis ``Finite element techniques for fitting deformable models to 3D data.''
Presently: NSERC Postdoctoral Fellow at the MIT Artificial Intelligence Lab, Cambridge, MA.

Dimitri Metaxas; PhD, CS, November, 1992;
Thesis: ``Physics based modeling of nonrigid objects for vision and graphics.''
Presently: Assistant Professor of Computer and Information Science at the University of Pennsylvania, Philadelphia, PA.

Hong Qin; PhD, CS, October, 1995;
Thesis: ``D-NURBS: Dynamic non-uniform rational B-splines.''
Presently: Assistant Professor of Computer & Information Science & Engineering at the University of Florida, Gainesville, FL.

Xiaoyuan Tu; PhD, CS, January, 1996;
Thesis: ``Artificial animals for computer animation: Biomechanics, locomotion, perception, and behavior.''
Presently: Member of Technical Staff, Silicon Studio, Inc., Mountain View, CA.

Luiz Velho; PhD, CS, February, 1994;
Thesis: ``Piecewise descriptions of implicit surfaces and solids.''
Presently: Researcher, Instituto de Matematica Pura e Aplicada (IMPA), Rio de Janeiro, Brazil.

Oliver Bengtsson; BASc, Eng. Sci., April, 1995;
Thesis: ``Computational biological model of the physiology and behavior of aquatic animals.''

Former Visitors

Shigeo Morishima; Professor of Electrical Engineering at Seikei University, Tokyo, Japan.
Shigeo-san was a visiting professor with the Visual Modeling Group during the 1994 academic year. Check out the Morishima Lab.


The research activities of the Visual Modeling Group are funded in part by grants from the Natural Sciences and Engineering Research Council of Canada (NSERC) and the Information Technology Research Center (ITRC) of Ontario.

Demetri Terzopoulos