32-Issue 5

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Noise-Adaptive Shape Reconstruction from Raw Point Sets
(The Eurographics Association and Blackwell Publishing Ltd., 2013) Giraudot, Simon; Cohen-Steiner, David; Alliez, Pierre; Yaron Lipman and Hao Zhang
We propose a noise-adaptive shape reconstruction method specialized to smooth, closed shapes. Our algorithm takes as input a defect-laden point set with variable noise and outliers, and comprises three main steps. First, we compute a novel noise-adaptive distance function to the inferred shape, which relies on the assumption that the inferred shape is a smooth submanifold of known dimension. Second, we estimate the sign and confidence of the function at a set of seed points, through minimizing a quadratic energy expressed on the edges of a uniform random graph. Third, we compute a signed implicit function through a random walker approach with soft constraints chosen as the most confident seed points computed in previous step.