The William Kouwenhoven Memorial Lecture: Stephen Pizer

Description

Stephen Pizer, a professor of computer science at the University of North Carolina at Chapel Hill, will give the William Kouwenhoven Memorial Lecture titled "A Geometric Model for Anatomic Objects Targeted for Statistical Analysis," hosted by the Department of Electrical and Computer Engineering.

Abstract:

A novel representation known as the evolutionary s-reps is suitable for representation of models of anatomic objects that can encompass geometric features, image intensity-based features, genetic features, etc. Evolutionary s-reps can be used for shape-based classification of anatomic objects, hypothesis testing on shape variations between classes of anatomic objects, and segmentation of anatomic objects, all of which require training on example cases and then can be applied on cases under study. The evolutionary s-reps and example applications will be discussed. This new representation provides better statistics than alternatives because it is based on geometry not just on the object boundary but also on the interior, on second-order and not just positional (0th order) features, and on finding for each case a diffeomorphism from a basic, ellipsoidal object in a way respecting an unusually rich set geometric properties.