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Computer generated Celtic design
Author(s): Matthew Kaplan, Elaine Cohen.
Proceedings: 13th Eurographics workshop on Rendering, Non-photorealistic rendering, pp. 9--19,
2003.
[BibTeX] 
Abstract:
We present a technique for automating the construction of Celtic knotwork and decorations similar to those in illuminated manuscripts such as the Lindisfarne Gospels. Our method eliminates restrictions imposed by previous methods which limited the class of knots that could be produced correctly by introducing new methods for smoothing and orienting threads. Additionally, we present techniques for interweaving and attaching images to the knotwork and techniques to encapsulate knot patterns to simplify the design process. Finally we show how to use such knotwork in 3D and demonstrate a variety of applications including artwork and transforming the designs into 3D models for fabrication.
Interactive Artistic Rendering
Matthew Kaplan, Bruce Gooch, Elaine Cohen.
1st International Symposium on Non-Photorealistic Animation and Rendering (NPAR'00), pp. 67--74, Annecy, France, June 05 - 07,
2000. [BibTeX]
Interactive watercolor rendering with temporal coherence and abstraction
Adrien Bousseau, Matthew Kaplan, Joëlle Thollot, François X. Sillion.
NPAR '06: Proceedings of the 4th international symposium on Non-photorealistic animation and rendering, pp. 141--149, New York, NY, USA, June, ACM Press,
2006. [BibTeX]
Pattern Oriented Remeshing for Celtic Design
Matthew Kaplan, Emil Praun, Elaine Cohen.
12th Pacific Conference on Computer Graphics and Applications (PG'04), Seoul, Korea,
2004. [BibTeX]