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18

IWVF
2001
Springer

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How Folds Cut a Scene

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How Folds Cut a Scene

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We consider the interactions between edges and intensity distributions in semi-open image neighborhoods surrounding them. Locally this amounts to a kind of ﬁgure-ground problem, and we analyze the case of smooth ﬁgures occluding arbitrary backgrounds. Techniques from diﬀerential topology permit a classiﬁcation into what we call folds (the side of an edge from a smooth object) and cuts (the background). Intuitively, cuts arise when an arbitrary scene is “cut” from view by an occluder. The condition takes the form of transversality between an edge tangent map and a shading ﬂow ﬁeld, and examples are included.

Patrick S. Huggins, Steven W. Zucker

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Arbitrary Backgrounds | Computer Graphics | Intensity Distributions | IWVF 2001 | Semi-open Image Neighborhoods |

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Added	30 Jul 2010
Updated	30 Jul 2010
Type	Conference
Year	2001
Where	IWVF
Authors	Patrick S. Huggins, Steven W. Zucker

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