Surface reconstruction of wheat leaf morphology from three-dimensional scanned data

DM Kempthorne, IW Turner, JA Belward… - Functional Plant …, 2014 - CSIRO Publishing
Realistic virtual models of leaf surfaces are important for several applications in the plant
sciences, such as modelling agrichemical spray droplet movement and spreading on the …

Stochastic convergence of a nonconforming finite element method for the thin plate spline smoother for observational data

Z Chen, R Tuo, W Zhang - SIAM Journal on Numerical Analysis, 2018 - SIAM
The thin plate spline smoother is a classical model for finding a smooth function from the
knowledge of its observation at scattered locations which may have random noises. We …

A comparison of techniques for the reconstruction of leaf surfaces from scanned data

DM Kempthorne, IW Turner, JA Belward - SIAM Journal on Scientific …, 2014 - SIAM
The foliage of a plant performs vital functions. As such, leaf models are required to be
developed for modeling the plant architecture from a set of scattered data captured using a …

[HTML][HTML] A mixed finite element discretisation of linear and nonlinear multivariate splines using the Laplacian penalty based on biorthogonal systems

BP Lamichhane - MethodsX, 2023 - Elsevier
We consider a mixed finite element method for a linear multivariate spline using the
Laplacian penalty. Our discretisation is based on biorthogonal systems leading to a very …

[PDF][PDF] Error estimation and adaptive refinement of finite element thin plate spline

L Fang - 2021 - researchgate.net
The thin plate spline smoother is a data fitting and smoothing technique that captures
important patterns of potentially noisy data. However, it is computationally expensive for …

Efficient solution techniques for a finite element thin plate spline formulation

L Stals - Journal of Scientific Computing, 2015 - Springer
We present a new technique for solving the saddle point problem arising from a finite
element based thin plate spline formulation. The solver uses the Sherman–Morrison …

Finite element techniques for removing the mixture of Gaussian and impulsive noise

BP Lamichhane - IEEE Transactions on Signal Processing, 2009 - ieeexplore.ieee.org
The finite element method has become a very powerful and popular tool to solve boundary
value problems coming from science and engineering. Here, we consider a scattered data …

Smoothing large data sets using discrete thin plate splines

L Stals, S Roberts - Computing and Visualization in Science, 2006 - Springer
Traditional thin plate splines use radial basis functions and require the solution of a dense
linear system of equations whose size is proportional to the number of data points. Instead of …

Data-based adaptive refinement of finite element thin plate spline

L Fang, L Stals - Journal of Computational and Applied Mathematics, 2024 - Elsevier
The thin plate spline, as introduced by Duchon, interpolates a smooth surface through
scattered data. It is computationally expensive when there are many data points. The finite …