How folds cut a scene (2001)
| Venue: | In Proc. of the � � Int. Workshop on Visual Form |
| Citations: | 4 - 2 self |
BibTeX
@INPROCEEDINGS{Huggins01howfolds,
author = {Patrick S. Huggins and Steven W. Zucker},
title = {How folds cut a scene},
booktitle = {In Proc. of the � � Int. Workshop on Visual Form},
year = {2001}
}
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Abstract
Abstract. 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. 1
