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Polygonal approximation of 2-D shapes through boundary merging

โœ Scribed by Jia-Guu Leu; Limin Chen


Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
455 KB
Volume
7
Category
Article
ISSN
0167-8655

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A concavity tree is a data structure for hierarchically representing the shape of two-dimensional silhouettes using convex polygons. In this paper, we present a new algorithm for concavity tree extraction. The algorithm is fast, works directly on the pixel grid of the shape, and uses exact convex hu