A Solid Model Based Virtual Hairy Brush
Songhua Xu, Min Tang, Francis Lau, Yunhe Pan.
Computer Graphics Forum, Vol. 21, No. 3, September,
2002. [BibTeX]
Advanced Design for a Realistic Virtual Brush
Songhua Xu, Francis Lau, Feng Tang, Yunhe Pan.
Computer Graphics Forum, Vol. 22, No. 3, pp. 533--542, September,
2003. [BibTeX]
AI Supported Computer-Generated Pen-and-Ink Illustration
Yan Gu, Songhua Xu, Min Tang, Jinxiang Dong.
The Sixth International Conference on Computer Supported Cooperative Work in Design, pp. 227--231, 12-14 July,
2001. [BibTeX]
Animating Chinese Paintings Through Stroke-Based Decomposition
Author(s): Songhua Xu, Ying-Qing Xu, Sing Bing Kang, David H. Salesin, Yunhe Pan, Heung-Yeung Shum.
Article: ACM Transactions on Graphics, Vol. 25, No. 2, pp. 239--267,
2006.
[BibTeX] [DOI]
Abstract:
This article proposes a technique to animate a Chinese style painting given its image. We first extract descriptions of the brush strokes that hypothetically produced it. The key to the extraction process is the use of a brush stroke library, which is obtained by digitizing single brush strokes drawn by an experienced artist. The steps in our extraction technique are first to segment the input image, then to find the best set of brush strokes that fit the regions, and, finally, to refine these strokes to account for local appearance. We model a single brush stroke using its skeleton and contour, and we characterize texture variation within each stroke by sampling perpendicularly along its skeleton. Once these brush descriptions have been obtained, the painting can be animated at the brush stroke level. In this article, we focus on Chinese paintings with relatively sparse strokes. The animation is produced using a graphical application we developed. We present several animations of real paintings using our technique.
Automatic Generation of Artistic Chinese Calligraphy
Songhua Xu, Francis Lau, William K. Cheung, Yunhe Pan.
IEEE Intelligent Systems, Vol. 20, No. 3, pp. 32--39, May/June,
2005. [BibTeX]
Virtual hairy brush for painterly rendering
Songhua Xu, Min Tang, Francis Lau, Yunhe Pan.
Graphical Models, Vol. 66, No. 5, pp. 263--302, September,
2004. [BibTeX]