PhD Qualifying Examination


"A Survey of Editing Techniques on Surface Models and Point-Based
Models"


By Mr. Hongbo Fu


Abstract:

Surface models represented as polygonal meshes are the most commonly
adopted in 3D rendering because of their simple and efficient
representation. However, generating consistent polygonal meshes from a set
of unstructured point samples is time-consuming and difficult. In recent
years, a lot of attention has been paid to point-based modeling and
rendering, because point-based surfaces can directly visualize huge point
clouds obtained from 3D scanning systems without polygonizing.

It is common to produce complex models by editing existing models. This
survey focuses on several editing techniques for surface models and
point-based models, including boolean operations, skeleton-driven
deformations, free-form deformations, level set editing, multiresolution
editing and cut-and-paste editing. First, these techniques are introduced
in the context of different geometric representations.  Next, a comparison
is made and a few potential fields for further research are presented.
Finally, we introduce our current work on topology-free cut-and-paste
editing over meshes.


Date:     		Friday, 19 December 2003

Time:                   10:00a.m.-12:00noon

Venue:                  Room 2302
			lifts 17-18

Committee Members:      Dr. Chiew-Lan Tai (Supervisor)
                        Dr. Michael Brown (Chairperson)
			Dr. Albert Chung
			Dr. Long Quan


**** ALL are Welcome ****