- Title
- A mixed finite element discretisation of thin-plate splines
- Creator
- Lamichhane, Bishnu P.; Roberts, Stephen; Stals, Linda
- Relation
- Fifteenth Biennial Conference on Computational Techniques and Applications Conference (CTAC10). Proceedings of the Fifteenth Biennial Conference on Computational Techniques and Applications Conference (CTAC10) (Sydney, Australia 28 November - 1 December 2010) p. C518-C534
- Publisher Link
- http://dx.doi.org/10.21914/anziamj.v52i0.3934
- Publisher
- Cambridge University Press
- Resource Type
- conference paper
- Date
- 2011
- Description
- Thin-plate splines are a well established technique for the interpolation and smoothing of scattered data. However, the traditional formulation of the method leads to large, dense and often ill-conditioned matrices, which reduces its applicability in practice. We present a new mixed finite element formulation based on the ideas behind the mortar finite element methods. The resulting system of equations is sparse and positive definite, and its size depends only on the number of finite elements not the number of data points.
- Subject
- thin-plate spines; mixed finite elements
- Identifier
- http://hdl.handle.net/1959.13/1316527
- Identifier
- uon:23199
- Identifier
- ISSN:1446-8735
- Language
- eng
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