The Euler Characteristics of Discrete Ob
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Atsushi Imiya; Ulrich Eckhardt
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Article
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1999
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Elsevier Science
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English
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Assuming planar 4-connectivity and spatial 6-connectivity, we first introduce the curvature indices of the boundary of a discrete object, and, using these indices of points, we define the vertex angles of discrete surfaces as an extension of the chain codes of digital curves. Second, we prove the re