Non-Photorealistic Rendering (NPR) Paper Presentation Assignment

For this assignment, you will prepare and give an in-class presentation of a paper related to non-photorealistic rendering (more properly called artistic rendering, or something positive).

The papers to choose from are listed below. The papers selected generally had high impact when they were originally published. Others cover an important area of illustration or something very different from the others. Some are just interesting or produce great pictures. Some papers are paired, in which case you should present both. The pairings generally couple a static approach with its animated or real-time extension, and there is no need to give each paper equal importance when presenting.

If, for some reason, you really wish to present a paper that isn't on the list, ask me.

In the interests of simplicity, the first to claim a paper gets to present it. Claim a paper by sending me email. I will use "sent time" to judge "first". You can change your paper, but I'd rather you didn't. When papers are claimed, they will be marked as such on this web page.

I have hard-copies of all of the papers (just one of each), most with colour if relevant. I also have most of the pertinent SIGGRAPH proceedings, and those that I don't have, Prof. Gleicher probably does have. Same for videos. I strongly recommend tracking down the video if there is one associated with your paper.

Note that many of the links below are to the ACM Digital Library, to which the university has a subscription.You may not be able to access those links from machines that are not on a wisc.edu subdomain.

The Choices:

• [TAKEN] Cassidy J. Curtis, Sean E. Anderson, Joshua E. Seims, Kurt W. Fleischer and David H. Salesin, "Computer-Generated Watercolor", Proceedings of SIGGRAPH 97, pp 421-430, 1997.
• [TAKEN] Oliver Deussen and Thomas Strothotte, "Computer-Generated Pen-and-Ink Illustration of Trees", Proceedings of SIGGRAPH 2000, pp 13-18, 2000.
• Amy Gooch, Bruce Gooch, Peter Shirley and Elaine Cohen, "A Non-Photorealistic Lighting Model for Automatic Technical Illustration", Proceedings of SIGGRAPH 98, pp 447-452, 1998.
  Bruce Gooch, Peter-Pike J. Sloan, Amy Gooch, Peter Shirley and Richard Riesenfeld, "Interactive Technical Illustration", Proceedings of the 1999 Symposium on Interactive 3D Graphics, pp 31-38, 1999.
• Paul Haeberli, "Paint by Numbers: Abstract Image Representations", Proceedings of SIGGRAPH 90, pp 207-214, 1990
• [TAKEN] Aaron Hertzmann, "Painterly Rendering with Curved Brush Strokes of Multiple Sizes", Proceedings of SIGGRAPH 98, pp 453-460, 1998.
  Aaron Hertzmann and Ken Perlin, "Painterly Rendering for Video and Interaction", Proceedings of the First International Symposium on Non-Photorealistic Rendering and Animation, pp 7-12, 2000.
• Aaron Hertzmann and Denis Zorin, "Illustrating Smooth Surfaces", Proceedings of SIGGRAPH 2000, pp 517-526, 2000.
• [TAKEN] Michael A. Kowalski, Lee Markosian, J.D. Northrup, Lubomir Bourdev, Ronen Barzel, Loring S. Holden and John F. Hughes, "Art-Based Rendering of Fur, Grass and Trees", Proceedings of SIGGRAPH 99, pp 433-438, 1999.
  Lee Markosian, Barbara J. Meier, Michael A. Kowalski, Loring S. Holden, J. D. Northrup and John F. Hughes, "Art-based Rendering with Continuous Levels of Detail", Proceedings of the First International Symposium on Non-Photorealistic Rendering and Animation, pp 59-66, 2000.
• [TAKEN] Peter Litwinowicz, "Processing Images and Video for an Impressionist Effect", Proceedings of SIGGRAPH 97, pp 407-414, 1997.
• Barbara J. Meier, "Painterly Rendering for Animation", Proceedings of SIGGRAPH 96, pp 477-484, 1996.
• Victor Ostromoukhov, "Digital Facial Engraving", Proceedings of SIGGRAPH 99, pp. 417-424, 1999.
• [TAKEN] Paul Rademacher, "View-Dependent Geometry", Proceedings of SIGGRAPH 99, pp 439-446, 1999.
• Georges Winkenbach and David H. Salesin, "Computer-Generated Pen-and-Ink Illustration", Proceedings of SIGGRAPH 94, pp 91-100, 1994

A large bibliography with web links, compiled by Craig Reynolds, is available to help track down references.

Preparing Your Presentation

The aim of your presentation is to give the flavour of the paper, not to give all the details. Some key points to address (not exhaustive):

• What style is the author trying to reproduce, or are they creating a whole new style? Try to find representative images of the style as rendered by an artist, and show them as part of your talk. Several of the images in the papers are inspired by real paintings, which should be easy to track down.
• Is the approach for a single image, or for animations? If for single images, what stands in the way of extending it to animation? If for animation, how do they deal with the specific problems associated with animating art?
• Does the approach work from photos/video, or 3d models, or is it interactive? Does it make a difference?
• What are the particularly good things about the approach, and what are its poorer aspects? Are suggestions given for improvement? Remember, you aren't really advocating the approach, so feel free to be critical.
• Try to go into detail about one or two aspects of the paper, such as how they solved a particular problem.

You should aim to talk for less than 30 minutes, and be prepared for questions. A reasonable heuristic is that one slide lasts for two minutes, but individuals vary slightly. I will make every effort to help you print colour slides. It may be more effective to pass a book around class for material that will not reproduce well. Be sure to give me ample notice of any special requests (at least two days).

Grading

Feel free to discuss your presentation with me before you give it, and to discuss the papers with your fellow classmates.