Non-Photorealistic Computer Graphics Library

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Found 7 item(s) authored by "Kwan-Liu Ma" .

Proceedings A new form of traditional art: visual simulation of Chinese shadow play
Yi-Bo Zhu, Chen-Jia Li, I. Fan Shen, Kwan-Liu Ma, Aleksander Stompel.
SIGGRAPH 2003, Sketches & applications, 2003. [BibTeX]

Proceedings Expressive Line Selection by Example

Author(s): Erik Lum, Kwan-Liu Ma.
Proceedings: 13th Pacific Conference on Computer Graphics and Applications (PG'05), 2005.
[BibTeX] Find this paper on Google

An important problem in computer generated line drawing is determining which set of lines produces a representation that is in agreement with a user's communication goals. We describe a method that enables a user to intuitively specify which types of lines should appear in rendered images. Our method employs conventional silhouette-edge and other feature-line extraction algorithms to derive a set of candidate lines, and integrates machine learning into a user-directed line removal process using a sketching metaphor. The method features a simple and intuitive user interface that provides interactive control over the resulting line selection criteria and can be easily adapted to work in conjunction with existing line detection and rendering algorithms. Much of the method's power comes from its ability to learn the relationships between numerous geometric attributes that define a line style. Once learned, a user's style and intent can be passed from object to object as well as from view to view.

Proceedings Hardware-Accelerated Parallel Non-Photorealistic Volume Rendering
Erik Lum, Kwan-Liu Ma.
2nd International Symposium on Non-Photorealistic Animation and Rendering (NPAR'02), Annecy, France, June 3-5, 2002. [BibTeX]

Proceedings Illustrative Rendering Techniques for Visualization: Future of Visualization or Just Another Technique?
Dirk Bartz, Hans Hagen, Victoria Interrante, Kwan-Liu Ma, Bernhard Preim.
Proceedings of the IEEE Visualization 2005 October 23-28, Minneapolis, MN, USA (VIS'05), pp. 715--718, Los Alamitos, CA, USA, IEEE Computer Society, 2005. [BibTeX]

Proceedings Non-Photorealistic Rendering using Watercolor Inspired Textures and Illumination
Erik Lum, Kwan-Liu Ma.
9th Pacific Conference on Computer Graphics and Applications (PG'01), October 16-18, 2001. [BibTeX]

Proceedings Rendering Complexity in Computer-Generated Pen-and-Ink Illustrations
Brett Wilson, Kwan-Liu Ma.
3rd International Symposium on Non-Photorealistic Animation and Rendering (NPAR'04), pp. 129--137, 2004. [BibTeX]

Proceedings Visualization of Multidimensional, Multivariate Volume Data Using Hardware-Accelerated Non-Photorealistic Rendering Techniques
Aleksander Stompel, Erik Lum, Kwan-Liu Ma.
10th Pacific Conference on Computer Graphics and Applications (PG'02), pp. 394, Tsinghua University, Beijing, October 09 - 11, 2002. [BibTeX]

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