.
Automatic Generation of Pencil Drawing from 2D Images Using Line Integral Convolution
Xiaoyang Mao, Yoshiyasu Nagasaka, Atsumi Imamiya.
7th International Conference on Computer Aided Design and Computer Graphics (CAD/GRAPHICS'01), pp. 240--248, August,
2001. [BibTeX]
Colored Pencil Filter with Custom Colors
Shigefumi Yamamoto, Xiaoyang Mao, Atsumi Imamiya.
12th Pacific Conference on Computer Graphics and Applications (PG'04), pp. 329--338, Seoul, Korea, October 06 - 08,
2004. [BibTeX]
Enhanced LIC Pencil Filter
Shigefumi Yamamoto, Xiaoyang Mao, Kenji Tanii, Atsumi Imamiya.
International Conference on Computer Graphics, Imaging and Visualization (CGIV'04), pp. 251--256, July,
2004. [BibTeX]
Interactive Hairstyle Modeling Using a Sketching Interface
Xiaoyang Mao, Kouichi Kashio, Hiroyuki Kato, Atsumi Imamiya.
International Conference on Computational Science (ICCS'02), PartII, pp. 131--140, April,
2002. [BibTeX]
Sketch Interface Based Expressive Hairstyle Modelling and Rendering
Author(s): Xiaoyang Mao, Hiroki Kato, Atsumi Imamiya, Ken Anjyo.
Proceedings: Computer Graphics International (CGI'04), pp. 608--611, June,
2004.
[BibTeX] 
Abstract:
We present a new system for interactively modeling and rendering non-photorealistic hairstyles. The system is featured with a user-friendly sketch interface allowing a user generate his/her desired hairstyle simply by drawing a few free-form strokes. Hairstyles are modeled with a new polygon based technique called cluster polygon, and can be rendered expressively to obtain hair images similar to those found in cell animation and cartoons.
Sketchy hairstyles
Xiaoyang Mao, Shiho Isobe, Ken Anjyo, Atsumi Imamiya.
Computer Graphics International 2005 (CGI'05), pp. 142--147, 22-24 June,
2005. [BibTeX]