Showing papers by "Takeo Kanade published in 1980"
TL;DR: In this article, a set of color features, (R + G + B) 3, R − B, and (2G − R− B) 2, were derived by systematic experiments of region segmentation.
965 citations
TL;DR: In this article, a labeling procedure for the Origami world is proposed, which can find the 3D meaning of a given line drawing by assigning one of the labels, + (convex edge), − (concave edge), ←, and → (occluding boundary) to each line.
170 citations
TL;DR: A model of image understanding is presented to provide a paradigm in which the problem of region segmentation can be discussed, and the importance of exploiting the physical level of knowledge, the bridge between a picture and a scene, is emphasized.
109 citations
18 Aug 1980
TL;DR: In this article, the authors demonstrate two new approaches to derive three-dimensional surface orientation information (shape) from two-dimensional image cues: affine transformable patterns and shape-from-texture paradigm.
Abstract: In this paper we demonstrate two new approaches to deriving three-dimensional surface orientation information (“shape”) from two-dimensional image cues. The two approaches are the method of affine-transformable patterns and the shape-from-texture paradigm. They are introduced by a specific application common to both: the concept of skewed symmetry. Skewed symmetry is shown to constrain the relationship of observed distortions in a known object regularity to a small subset of possible underlying surface orientations. Besides this constraint, valuable in its own right, the two methods are shown to generate other surface constraints as well. Some applications are presented of skewed symmetry to line drawing analysis, to the use of gravity in shape understanding, and to global shape recovery.
27 citations