Non-Photorealistic Computer Graphics Library

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Found 7 item(s) authored by "Michael F. Cohen" .

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

Proceedings Image Precision Silhouette Edges
Ramesh Raskar, Michael F. Cohen.
Symposium on Interactive 3D Graphics (I3D'99), pp. 135--140, Atlanta, Georgia, United States, 1999. [BibTeX]

Proceedings Stylized Video Cubes
Allison W. Klein, Peter-Pike J. Sloan, Adam Finkelstein, Michael F. Cohen.
ACM SIGGRAPH Symposium on Computer Animation, pp. 15--22, July, 2002. [BibTeX]

Proceedings Stylizing 2.5-D Video
Noah Snavely, C. Lawrence Zitnick, Sing Bing Kang, Michael F. Cohen.
NPAR '06: Proceedings of the 4th international symposium on Non-photorealistic animation and rendering, pp. 63--69, New York, NY, USA, June, ACM Press, 2006. [BibTeX]

Article The Cartoon Animation Filter

Author(s): Jue Wang, Steven Drucker, Maneesh Agrawala, Michael F. Cohen.
Article: ACM Transactions on Graphics (Proceedings of SIGGRAPH 2006), Vol. 23, No. 3, pp. 1169--1173, July, 2006.
[BibTeX] [DOI] Find this paper on Google

We present the "Cartoon Animation Filter", a simple filter that takes an arbitrary input motion signal and modulates it in such a way that the output motion is more "alive" or "animated". The filter adds a smoothed, inverted, and (sometimes) time shifted version of the second derivative (the acceleration) of the signal back into the original signal. Almost all parameters of the filter are automated. The user only needs to set the desired strength of the filter. The beauty of the animation filter lies in its simplicity and generality. We apply the filter to motions ranging from hand drawn trajectories, to simple animations within PowerPoint presentations, to motion captured DOF curves, to video segmentation results. Experimental results show that the filtered motion exhibits anticipation, follow-through, exaggeration and squash-and-stretch effects which are not present in the original input motion data.

Proceedings Video Mosaics
Allison W. Klein, Tyler Grant, Adam Finkelstein, Michael F. Cohen.
NPAR 2002: Second International Symposium on Non Photorealistic Rendering, pp. 21--28, June, 2002. [BibTeX]

Proceedings Video Tooning
Jue Wang, Ying-Qing Xu, Heung-Yeung Shum, Michael F. Cohen.
SIGGAPH2004, 2004. [BibTeX]

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