Non-Photorealistic Computer Graphics Library

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Found 5 item(s) authored by "Young Sup Park" Find Author on Google.

Article A Directional Stroke Generation Algorithm for Painterly Rendering
Jeong Seob Cha, Young Sup Park, Kyung Hyun Yoon.
LNCS 2669, May, 2003. [BibTeX]

Article A Study on the Dynamic Painterly Stroke Generation for 3D Animation
Hyo Keun Lee, Young Sup Park, Kyung Hyun Yoon.
Lecture Notes in Computer Science, Vol. 2669, pp. 317--325, May, 2003. [BibTeX]

Proceedings Adaptive Brush Stroke Generation for Painterly Rendering
Young Sup Park, Kyung Hyun Yoon.
Eurographics 2004 - Short Presentations, pp. 65--68, August, 2004. [BibTeX]

Proceedings Color Paper Mosaic Rendering
Sanghyun Seo, SungYe Kim, Young Sup Park, Kyung Hyun Yoon.
SIGGRAPH 2001 Sketches and Applications, pp. 157, 2001. [BibTeX]

Article Painterly animation using motion maps

Author(s): Young Sup Park, Kyung Hyun Yoon.
Article: Graphical Models, Vol. 70, No. 1-2, pp. 1--15, January-March, 2008.
[BibTeX] [DOI] Find this paper on Google

Abstract:
Starting from an input video, we replicate the manual technique of paint-on-glass animation. Motion maps are used to represent the regions where changes occur between frames. Edges are the key to identifying frame-to-frame changes, and a strong motion map is constructed from the edges in each frame, displaced by the motion vector. A second, weak motion map records the other pixels where there is significant movement between frames. These maps are used to generate the brush strokes necessary to convert one 'painted' frame into the next. Local gradient interpolation, based robustly on the edges, is used to determine the orientation of the brush strokes, and we avoid holes in the image by making additional strokes with smaller brushes. We also employ MSE data in evaluating temporal coherence between frames.

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