DOI: 10.36253/979-12-215-1002-7.05 ISSN: 3103-3881

Data fitting schemes with hierarchical splines

Sofia Imperatore
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In this Chapter, we exploit two main approximation methods to define the a THB-spline model: reweighted least-square (rWLS) approximation and the Quasi-Interpolation (QI) schemes. In particular, we first focus on two very well established classical methods: interpolation and weighted least squares, and extend the latter as an adaptive rWLS fitting scheme. Subsequently, we present a hierarchical QI scheme with THB-spline.

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