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Green Image
Issue No. 01 - January (2011 vol. 17)
ISSN: 1077-2626
pp: 74-87
Mizuki Kagaya , Oregon State University, Corvallis
William Brendel , Oregon State University, Corvallis
Qingqing Deng , Oregon State University, Corvallis
Todd Kesterson , Oregon State University, Corvallis
Sinisa Todorovic , Oregon State University, Corvallis
Patrick J. Neill , NVidia, Santa Clara
Eugene Zhang , Oregon State University, Corvallis
Artists use different means of stylization to control the focus on different objects in the scene. This allows them to portray complex meaning and achieve certain artistic effects. Most prior work on painterly rendering of videos, however, uses only a single painting style, with fixed global parameters, irrespective of objects and their layout in the images. This often leads to inadequate artistic control. Moreover, brush stroke orientation is typically assumed to follow an everywhere continuous directional field. In this paper, we propose a video painting system that accounts for the spatial support of objects in the images or videos, and uses this information to specify style parameters and stroke orientation for painterly rendering. Since objects occupy distinct image locations and move relatively smoothly from one video frame to another, our object-based painterly rendering approach is characterized by style parameters that coherently vary in space and time. Space-time-varying style parameters enable more artistic freedom, such as emphasis/de-emphasis, increase or decrease of contrast, exaggeration or abstraction of different objects in the scene in a temporally coherent fashion.
Nonphotorealistic rendering, video painting, multistyle painting, tensor field design.

P. J. Neill et al., "Video Painting with Space-Time-Varying Style Parameters," in IEEE Transactions on Visualization & Computer Graphics, vol. 17, no. , pp. 74-87, 2010.
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