Dynamic Points: When Geometry Meets Physics

Speaker:	Prof. Hong QIN
		Department of Computer Science
		State University of New York
		Stony Brook

Topic:		"Dynamic Points: When Geometry Meets Physics"

Date:		Friday, 19 August 2005

Time:		11:00am - 12 noon

Venue:		Room 3464 (Conference Room, via lift nos. 25/26)
		HKUST

ABSTRACT:

In this talk, I will present a new and unique geometric processing
paradigm for point set surfaces: Dynamic Points, which are the unification
of point geometry and physics-based modeling. At the geometric level, I
will discuss the issue of how to globally parameterize point-sampled
surfaces and detail our new global, conformal parameterization algorithm
for point-set surfaces. Upon global parameterization, I will demonstrate
how physics can be integrated with point geometry for interactive
simulation and animation in graphics. Specific applications include shape
deformation based on the thin-shell finite element formulation, crack
generation and propagation, physics-based shape morphing, and real-time,
large-scale deformation for shape editing. The physical behavior of our
``Dynamic Points'' is uniquely founded upon the principle of mesh-free
finite elements. In addition to mathematical formulations for both point
geometry and physical laws, I will show several video clips that
demonstrate the efficacy of our prototype system throughout the talk.



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Biography:

Hong Qin is Associate Professor of Computer Science at State University of
New York at Stony Brook. In 1997, Dr. Qin was awarded NSF CAREER Award
from the National Science Foundation (NSF). In December, 2000, Dr. Qin
received Honda Initiation Grant Award. In April, 2001, Dr. Qin was
selected as an Alfred P. Sloan Research Fellow by the Sloan Foundation.
His areas of expertise include geometric modeling, graphics, physics-based
simulation, computer aided geometric design, and human-computer
interaction. At present, he is an associate editor of IEEE Transactions on
Visualization and Computer Graphics (TVCG) and The Visual Computer
(International Journal of Computer Graphics).