Fall 2003

Tuesdays 12:15  Goldwater 604

Seminar Schedule:<http://math.la.asu.edu/~tom/cognition/math+cogsched.html>

On Tuesday, November 18, at 12:15 PM in GWC 604,
the Mathematics and Cognition Seminar will present a lecture
by Dr. Gang Qian
of the Arts, Media and Engineering Center,
and Deparment of Electrical Engineering.
The topic will be:

"Sequential Monte Carlo in 3D Structure Recovery and Motion Analysis"

Abstract.

3D structure recovery and motion analysis from 2D image sequences, known as the structure-from-motion (SfM) problem, is an important topic in computer vision. In this talk, a family of SfM algorithms using the sequential Monte Carlo techniques will be presented. Three scenarios will be discussed: 1) traditional task: fully calibrated camera and rigid scene, 2) self-calibration: partially calibrated camera with unknown focal length, 3) Non-rigid scene: multiple independently moving objects. Experimental results show that challenging issues in solving the SfM problem, due to erroneous feature tracking, feature occlusion, motion/structure ambiguity, mismatched features, and independently moving objects, can be well modeled and effectively addressed using the proposed methods.