Non-Photorealistic Computer Graphics Library

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Found 6 item(s) authored by "Songhua Xu" Find Author on Google.

Article 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]

Article Advanced Design for a Realistic Virtual Brush

Author(s): Songhua Xu, Francis Lau, Feng Tang, Yunhe Pan.
Article: Computer Graphics Forum, Vol. 22, No. 3, pp. 533--542, September, 2003.
[BibTeX] [DOI] Find this paper on Google

This paper proposes a novel algorithmic framework for an advanced virtual brush to be used in interactive digital painting. The framework comprises the following components: a geometry model of the brush using a hierarchical representation that leads to substantial savings in every step of the painting process; fast online brush motion simulation assisted by offline calibration that guarantees an accurate and stable simulation of the brush's dynamic behavior; a new pigment model based on a diffusion process of random molecules that considers delicateand complex pigment behavior at dipping time as well as during painting; and a user-adaptation component thatenables the system to cater for the personal painting habits of different users. A prototype system has been implemented based on this framework. Compared with other virtual brushes, this new system is designed to presenta realistic brush in the sense that the system accurately and stably simulates the complex painting functionality of a running brush, and therefore is capable of creating high-quality digital paintings with minute aesthetic details that can rival the real artwork. The advanced features also give rise to a high degree of expressiveness ofthe virtual brush that the user can comfortably manipulate.˜songhuale-brush/ provides supplementary materials for this paper.

Proceedings 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]

Article Animating Chinese Paintings Through Stroke-Based Decomposition
Songhua Xu, Ying-Qing Xu, Sing Bing Kang, David H. Salesin, Yunhe Pan, Heung-Yeung Shum.
ACM Transactions on Graphics, Vol. 25, No. 2, pp. 239--267, 2006. [BibTeX]

Article 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]

Article 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]

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