.
Edge enhancement issues in halftoning
John W. Buchanan, Lisa M. Streit, Oleg Veryovka.
Graphics Interface (GI'98), pp. 209--216,
1998. [BibTeX]
Fast Primitive Distribution for Illustration
Author(s): Andrian Secord, Wolfgang Heidrich, Lisa M. Streit.
Proceedings: Thirteenth Eurographics Workshop on Rendering (2002),
2002.
[BibTeX] 
Abstract:
In this paper we present a high-quality, image-space approach to illustration that preserves continuous tone by probabilistically distributing primitives while maintaining interactive rates. Our method allows for frame-to-frame coherence by matching movements of primitives with changes in the input image. It can be used to create a variety of drawing styles by varying the primitive type or direction. We show that our approach is able to both preserve
tone and (depending on the drawing style) high-frequency detail. Finally, while our algorithm requires only an image as input, additional 3D information enables the creation of a larger variety of drawing styles.
Importance Driven Halftoning
Lisa M. Streit, John W. Buchanan.
Computer Graphics Forum (EG'98), Vol. 17, No. 3,
1998. [BibTeX]
Importance Driven Halftoning
Lisa M. Streit.
University of Alberta,
1998. [BibTeX]
Non-photorealistic Rendering Using an Adaptive Halftoning Technique
Lisa M. Streit, Oleg Veryovka, John W. Buchanan.
Skiggraph '99,
1999. [BibTeX]
Theory and Practice of Non-Photorealistic Graphics: Algorithms, Methods, and Production Systems
Brett Achorn, Daniel Teece, M. Sheelagh T. Carpendale, Mario Costa Sousa, David Ebert, Bruce Gooch, Victoria Interrante, Lisa M. Streit, Oleg Veryovka.
Siggraph 2003, ACM Press,
2003. [BibTeX]