Non-Photorealistic Computer Graphics Library

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Found 134 item(s) authored in "2004".
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Proceedings Extracting 3D Stylized Accentuation Effects from a Painted Image
Youetsu Sato, Yoshinori Dobashi, Tsuyoshi Yamamoto, Katsumi Takao, Ken Anjyo.
Computer Graphics International (CGI'04), pp. 222--229, June, 2004. [BibTeX]

Proceedings Frame Skeleton Based Auto-Inbetweening in Computer Assisted Cel Animation
Konstantin Melikhov, Feng Tian, Hock Soon Seah, Quan Chen, Jie Qiu.
International Conference on Cyberworlds (CW'04), pp. 216--223, November, 2004. [BibTeX]

Proceedings Frame-to-Frame Coherent Halftoning in Image Space
Mike Eissele, Daniel Weiskopf, Thomas Ertl.
Theory and Practice of Computer Graphics (TPCG'04), pp. 188--195, Bournemouth, 2004. [BibTeX]

Misc Free-form Video Tooning Deformation
Jue Wang, Ying-Qing Xu, Michael F. Cohen.
Poster on SCA2004, 2004. [BibTeX]

In Book Game Programming Gems 4
Bert Freudenberg, Maic Masuch, Thomas Strothotte.
Andrew Kirmse, Real-Time Halftoning: Fast and Simple Stylized Shading, pp. 443--440, Charles River Media, 2004. [BibTeX]

Technical Report Genetic Painting: A Salience Adaptive Relaxation Technique for Painterly Rendering
John P. Collomosse, Peter M. Hall.
University of Bath, No. CSBU-2003-02, UK, October, 2004. [BibTeX]

Proceedings Graph-Based Point Relaxation for 3D Stippling
Oscar E. Meruvia Pastor, Thomas Strothotte.
Fifth Mexican International Conference in Computer Science (ENC'04), pp. 141--150, September, 2004. [BibTeX]

Proceedings Hardware-Determined Feature Edges
Morgan McGuire, John F. Hughes.
3rd International Symposium on Non-Photorealistic Animation and Rendering (NPAR'04), pp. 35-147, 2004. [BibTeX]

Article High Quality Hatching
Johannes Zander, Tobias Isenberg, Stefan Schlechtweg, Thomas Strothotte.
Computer Graphics Forum (EG'04), Vol. 23, No. 3, pp. 421--430, September, 2004. [BibTeX]

Proceedings High-Quality Silhouette Illustration for Texture-Based Volume Rendering

Author(s): Zoltán Nagy, Reinhard Klein.
Proceedings: The 12th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision (WSCG'2004), V. Skala, R. Scopigno, Vol. 12, No. 2, pp. 301--308, February, UNION Agency - Science Press, 2004.
[BibTeX] Find this paper on Google

We present an accurate, interactive silhouette extraction mechanism for texture-based volume rendering. Compared to previous approaches, our system guarantees silhouettes of a user controlled width without any significant preprocessing time. Our visualization pipeline consists of two steps: (a) extraction of silhouettes with a width of one pixel, and (b) image post-processing for broadening of silhouettes. Step (a) is a mixture of object- and image-based- silhouette extraction models, maximally exploiting the screen resolution. This hybrid approach is neither sensitive to accuracy in gradient representation nor to the precision of the depth-buffer, as in earlier procedures. Step (b) is accomplished via smoothing and applying a threshold to the temporary result obtained in (a). To keep the latter process efficient, we perform fast convolution using FFT. Our silhouette extraction is conceptually similar to the corresponding method for polygonal representations, checking the front- and back facing property of adjacent triangles.

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