Math 155A –

This Friday’s (February 23) lecture is replaced by attendance at a CSE dept. talk. Please attend this talk instead of class on Friday.

Speaker: Igor Guskov, Cal Tech

Title: Meshes and Geometry Processing

Time: Friday, February 23. 11:00 AM

Place: APM 4301

Directions: Take APM elevators to 4th floor, turn right. The lecture room is the first room on the right.

I realize some of you have trouble arriving at 11:00 because of a class beforehand, but the sooner you can arrive, the more you will get from the talk. (And, the more likely you are to get a seat!)

Extra credit: 10 points "bonus" on homework for attending the talk. Sign up for the credit at the end of the talk.

Abstract: Progress in shape acquisition technology (laser scanners, etc.) has
resulted in an abundance of large meshes representing highly
detailed geometry. The acquired, densely sampled models are used in
many application areas ranging from engineering design to
entertainment and computational science. Processing of geometric
information stored in such large meshes is the main theme of my talk.
In the talk, I will present an overview of "digital geometry
processing" and cover several techniques recently developed in
that field, such as:
- Multiresolution processing of "raw" irregular meshes with applications
to noise removal, filtering, editing and texture mapping.
- Conversion of irregularly sampled geometry into more efficient
representations such as semi-regular "normal" meshes, and its
applications to geometry compression.
- Hybrid mesh representation that combines the simplicity of
semi-regular and the flexibility of irregular meshes together with
a user driven procedure for constructing hybrid meshes from densely
sampled geometry.
- Processing of significant topological features with hybrid meshes and
topological noise removal.
I will conclude with an overview of future and on-going work.