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Reconstruction and simplification of surfaces from contours

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3 Author(s)
Klein, R. ; Wilhelm-Schickard-Inst. fur Inf., Tubingen Univ., Germany ; Schilling, A. ; Strasser, W.

In this paper we consider the problem of reconstructing triangular surfaces from given contours. An algorithm solving this problem has to decide which contours of two successive slices should be connected by the surface (branching problem), and, given that, which vertices of the assigned contours should be connected for the triangular mesh (correspondence problem). We present a new approach that solves both tasks in an elegant way. The main idea is to employ discrete distance fields enhanced with correspondence information. This allows us not only to connect vertices from successive slices in a reasonable way but also to solve the branching problem by creating intermediate contours where adjacent contours differ too much. Last but not least we show how the 2D-distance fields used in the reconstruction step can be converted to a 3D-distance field that can be advantageously exploited for distance calculations during a subsequent simplification step

Published in:

Computer Graphics and Applications, 1999. Proceedings. Seventh Pacific Conference on

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