Meeting Minutes

Date:	July 14, 2011
Location:	DC 1331
Time:	11:30
Chair:	Philippe Lamoureux

1. Attendance

Zainab AlMeraj Edgar Bering Xinling Chen Bill Cowan Elodie Fourquet Eugene Greene Tiffany Inglis Philippe Lamoureux Stephen Mann Lesley Northam Simon Parent Alex Pytel Matthew Thorne

2. Coffee Hour

Coffee hour last week:: Ben?- thanks!
Coffee hour this week:: Xinling
Coffee hour next week:: Volunteers?

3. Forthcoming

Date:	July 21, 2011	July 28, 2011	August 4, 2011	August 11, 2011
Location:	DC 1331 11:30	DC 1331 11:30	DC 1331 11:30	DC 1331 11:30
Chair:	Ed Lank	Stephen Mann	Matthew McPerrin	Matei Negulescu
Technical Presentation:	Craig Kaplan	Ben Lafreniere	Philippe Lamoureux	Ed Lank

4. Technical Presentation

Tiffany Inglis	Title : Generating Op Art Lines Abstract: A common technique in Op Art is the use of parallel lines to depict simple shapes such as circles and squares. Some artists have attempted to create more complex images using this technique but faced the problem of producing undesirable artifacts such as line breaks and T-junctions within their artworks. To this end, we developed a novel algorithm that takes an arbitrary image and automatically generates the corresponding Op Art composition of this style. For 2-colour images, the algorithm produces artworks without any unwanted artifacts; for images with more colours, the basic algorithm cannot guarantee the removal of all artifacts, but we use a global optimization technique to minimize the number of artifacts. The results have applications in graphics design, data visualization, puzzle creation and line drawings.

Tiffany Inglis

Title : Generating Op Art Lines
Abstract:
A common technique in Op Art is the use of parallel lines to depict simple shapes such as circles and squares. Some artists have attempted to create more complex images using this technique but faced the problem of producing undesirable artifacts such as line breaks and T-junctions within their artworks. To this end, we developed a novel algorithm that takes an arbitrary image and automatically generates the corresponding Op Art composition of this style. For 2-colour images, the algorithm produces artworks without any unwanted artifacts; for images with more colours, the basic algorithm cannot guarantee the removal of all artifacts, but we use a global optimization technique to minimize the number of artifacts. The results have applications in graphics design, data visualization, puzzle creation and line drawings.

5. Discussion Items

None so far...

6. Action Items

Putting posters and listing publications in the CGL webpage.

7. Conferences and Special Journal Issues

Recent Additions

Upcoming Deadlines

Jul 15, 2011: ISVC'11 Advance Registration

8. Directors' Meeting

9. Seminars and Events

2011 Jul 15, 11:30: Artificial Intelligence Lab PhD Seminar
Ruth Urner, PhD Candidate, Cheriton School of Computer Science, Univ of Waterloo
Access to Unlabeled Data can Speed up Prediction Time
2011 Jul 26, 14:00: Cryptography, Security, and Privacy (CrySP) Group Talk
Jean-Pierre Hubaux, EPFL
Two Short Talks about the Security of Web Applications
2011 Aug 02, 09:00: Artificial Intelligence Lab PhD Thesis Defence
Gregory Hines, PhD candidate, David R. Cheriton School of Comp. Sci., Univ. Waterloo
A Study in Preference Elicitation Under Uncertainty

Thursday, 14 July 2011, 3:30PM: Pure Mathematics (Computability Learning), MC 5046
Barbara Csima
Degrees of Categoricity and the Hyperarithmetic Hierarchy - The Conclusion
Friday, 15 July 2011, 3:30PM: Pure Mathematics (Analysis Seminar), MC 5136
Aaron Tikuisis
The Cuntz semigroup and its role in classification
Friday, 15 July 2011, 3:30PM: Combinatorics and Optimization (Tutte Seminar), MC 5158 Maurice Cheung
A Primal-Dual Approximation Algorithm for Min-Sum Single Machine Scheduling Problems

Also see other Math and CS postings.