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Evaluating a distance function (2211.02319v2)
Published 4 Nov 2022 in math.NA and cs.NA
Abstract: Computing the distance function to some surface or line is a problem that occurs very frequently. There are several ways of computing a relevant approximation of this function, using for example technique originating from the approximation of Hamilton Jacobi problems, or the fast sweeping method. Here we make a link with some elliptic problem and propose a very fast way to approximate the distance function.