Event Details
The Curvature Scale Space Representation: Applications and Generalizations
Presenter: Dr. Farzin Mokhtarian, Ph.D. - Department of Electronic and Electrical Engineering, University of Surrey
Supervisor: Dr. R. N. Horspool, Chair, Department of Computer Science
Date: Wed, March 28, 2001
Time: 14:30:00 - 15:30:00
Place: Engineering Office Wing Building (EOW) Room # 430
ABSTRACT
ABSTRACT:
This presentation will start with an introduction to the Curvature Scale Space (CSS) technique, a powerful free-form contour shape descriptor which has been selected for MPEG-7 standardization.
In the CSS representation, differential invariants of a planar contour are recovered and combined at multiple scales of resolution. This representation is invariant under similarity transforms and quite robust to affine transforms as well as local distortions of underlying shapes. The presentation will continue with a few applications of the CSS method including Large Image DataBase Retrieval based on shape content, Robust Image Corner Detection, Efficient Active Contour Modelling, and Automatic Spline Fitting at Multiple Scales. The presentation will conclude by briefly discussing the generalizations of the CSS method to three dimensions. These include the Torsion Scale Space Representation for Space Curves and Multi-Scale Descriptions of Free-Form 3-D Surfaces.