Non-Photorealistic Computer Graphics Library

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Found 6 item(s) authored by "Henry Kang" Find Author on Google.

Article A Hidden-picture Puzzles Generator
Jong-Chul Yoon, In-Kwon Lee, Henry Kang.
Computer Graphics Forum, Vol. 27, No. 7, pp. 1869--1877, 2008. [BibTeX]

Proceedings Coherent Line Drawing
Henry Kang, Seungyong Lee, Charles K. Chui.
5th International Symposium on Non-Photorealistic Animation (NPAR'07), 2007. [BibTeX]

Article Flow-Based Image Abstraction
Henry Kang, Seungyong Lee, Charles K. Chui.
IEEE Transactions on Visualization and Computer Graphics, Vol. 15, No. 1, pp. 62--76, 2009. [BibTeX]

Article Image and Video Abstraction by Anisotropic Kuwahara Filtering
Jan Eric Kyprianidis, Henry Kang, Jürgen Döllner.
Computer Graphics Forum (Special Issue on Pacific Graphics 2009), Vol. 28, No. 7, pp. 1955--1963, October, 2009. [BibTeX]

Article Image and Video Abstraction by Coherence-Enhancing Filtering

Author(s): Jan Eric Kyprianidis, Henry Kang.
Article: Computer Graphics Forum, Vol. 30, No. 2, pp. 593--602, 2011.
[BibTeX] [DOI] Find this paper on Google

Abstract:
In this work, we present a non-photorealistic rendering technique to create stylized abstractions from color images and videos. Our approach is based on adaptive line integral convolution in combination with directional shock filtering. The smoothing process regularizes directional image features while the shock filter provides a sharpening effect. Both operations are guided by a flow field derived from the structure tensor. To obtain a high-quality flow field, we present a novel smoothing scheme for the structure tensor based on Poisson's equation. Our approach effectively regularizes anisotropic image regions while preserving the overall image structure and achieving a consistent level of abstraction. Moreover, it is suitable for per-frame filtering of video and can be efficiently implemented to process content in real-time.

Article Shape-simplifying Image Abstraction
Henry Kang, Seungyong Lee.
Computer Graphics Forum, Vol. 27, No. 7, pp. 1773--1780, 2008. [BibTeX]

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