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Generation of a Smooth Implicit Function Distributed Over the Entire Domain from Large Scattered Point Data

机译:生成从大分散点数据分布在整个域上的光滑隐式功能

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For the purpose of generating a smooth implicit function distributed over the entire domain, a method for smooth combination of two implicit functions f(x) and g(x) has been proposed. The method can be applied to large scattered point data, since the implicit function f(x) is generated by the partition of unity based method. The other implicit function g(x) is generated by the radial basis functions based method with a global support basis. For smooth combination of f(x) and g(x), an appropriate weight function is employed. Numerical experiments demonstrate that the proposed method enables to generate a smooth implicit function F(x) distributed over the entire domain. In addition, on the given points, accuracy of F(x) is exactly the same as that of f(x). Furthermore, the computational cost for generation of F(x) is almost the same as that of f (x).
机译:为了生成分布在整个域上的光滑隐式功能,已经提出了一种用于平滑两个隐式功能F(x)和g(x)的方法。该方法可以应用于大的散射点数据,因为通过基于统一的方法的分区生成隐式函数f(x)。其他隐式功能G(x)由基于径向基函数的方法生成,具有全局支持基础。对于F(x)和g(x)的平滑组合,采用适当的重量函数。数值实验表明,所提出的方法使得能够生成分布在整个域上的光滑隐式功能F(x)。另外,在给定点,F(x)的精度与f(x)的精度完全相同。此外,F(x)的生成计算成本与f(x)的计算成本几乎相同。

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