.
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
Author(s): Xiaoyang Mao, Kouichi Kashio, Hiroyuki Kato, Atsumi Imamiya.
Proceedings: International Conference on Computational Science (ICCS'02), PartII, pp. 131--140, April,
2002.
[BibTeX] 
Abstract:
Modeling and rendering human hair remains to be one of the most challenging computer graphics problems. This paper presents a new interactive hair modeling system featured with a user-friendly sketching interface. With the sketching interface, any user, even a first time user, can create a hair model of his/her desired style just in a few minutes simply by interactively drawing several strokes illustrating the global and local features of the hairstyle. The result of the system is a generic geometry-based representation of hair which can be post manipulated and rendered with most existing systems.
Sketch Interface Based Expressive Hairstyle Modelling and Rendering
Xiaoyang Mao, Hiroki Kato, Atsumi Imamiya, Ken Anjyo.
Computer Graphics International (CGI'04), pp. 608--611, June,
2004. [BibTeX]
Sketchy hairstyles
Xiaoyang Mao, Shiho Isobe, Ken Anjyo, Atsumi Imamiya.
Computer Graphics International 2005 (CGI'05), pp. 142--147, 22-24 June,
2005. [BibTeX]