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*

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*    GRAND Seminar

*    http://masc.cs.gmu.edu/wiki/GrandSeminar

*

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Learning a Hierarchical Compositional Shape Vocabulary

for Multi-class Object Representation





*Time/Venue*



12:00 noon, March 23, Tuesday, 2010, ENGR 4201



*Speaker*



Qi Wei

Postdoctoral fellow

Northwestern University



*Abstract*



Biomechanical simulation of human eye movements may greatly advance our

understanding of the complexities of the oculomotor system and aid in

treatment of visuomotor disorders. I will describe the first three

dimensional biomechanical model of the orbit that can simulate the

dynamics of ocular motility. The model incorporates realistic anatomical

and physiological characteristics of the orbital plant, and can

implement different types of extraocular pulleys. Various kinds of eye

movements such as fixations, smooth pursuits, and saccades can be

simulated. It is sufficiently general and adaptable for both scientific

research and clinical applications. Several studies were performed to

assess the validity and utility of the model. I will also present a

template-based approach on reconstructing subject-specific 3D models of

the orbit from magnetic resonance imaging (MRI) and an efficient method

on estimating longitudinal strains from generalized cylindrical tissues.





*Short Bio*



Qi Wei is a postdoctoral fellow in the Feinberg School of Medicine at

Northwestern University. She received her Ph.D. from Rutgers University

in 2010 and her M.Sc. degree from the University of British Columbia in

2004, both in Computer Science. Her research is focused on biomedical

imaging, computational modeling and simulation, and eye movement.



-- 

*Jyh-Ming Lien*

Assistant Professor, George Mason University

+1-703-993-9546

http://cs.gmu.edu/~jmlien