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Binary Shading Using Appearance and Geometry
Bert Buchholz, Tamy Boubekeur, Doug DeCarlo and Marc Alexa
Computer Graphics Forum Journal, 2010.
Presented at Eurographics 2011.
Our algorithm exploits both appearance and geometric properties to generate binary pictures from 3D scenes with high-level user control.
Abstract
In the style of binary shading, shape and illumination are depicted
using two colors, typically black and white, that form coherent
lines and regions in the image.
We formulate the problem of assigning colors in the rendered image
as an energy minimization, computed using graph cut on the image
grid.
The terms of this energy come from two sources: appearance (shading)
and geometry (depth and curvature). Our contributions are in the
use of geometric information in determining colors, and how
this information is incorporated into a graph cut approach.
This optimization yields boundaries between black and white regions
that tend towards being shorter and to run along geometric features
like creases.
We show a range of results, and demonstrate that this approach
produces more coherent images than simpler approaches that make
local decisions when assigning colors, or that do not use geometry.
BibTex Reference:
@article{Buchholz:2010:BSAG,
author = {Bert Buchholz and Tamy Boubekeur and Doug DeCarlo and Marc Alexa},
title = {Binary Shading Using Geometry and Appearance},
jornal = {Computer Graphics Forum},
year = {2010},
volume = {29},
number = {6},
pages = {1981-1992},
}
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