Results 1 to 10 of about 31,947 (163)

Stitching Locally Fitted T-Splines for Fast Fitting of Large-Scale Freeform Point Clouds [PDF]

open access: yesSensors, 2023
Parametric splines are popular tools for precision optical metrology of complex freeform surfaces. However, as a promising topologically unconstrained solution, existing T-spline fitting techniques, such as improved global fitting, local fitting, and ...
Jian Wang   +6 more
doaj   +2 more sources

T-Splines for Isogeometric Analysis of the Large Deformation of Elastoplastic Kirchhoff–Love Shells

open access: yesApplied Sciences, 2023
In this paper, we develop a T-spline-based isogeometric method for the large deformation of Kirchhoff–Love shells considering highly nonlinear elastoplastic materials.
Mayi Guo   +5 more
doaj   +1 more source

An improvised technique of quintic hermite splines to discretize generalized Burgers–Huxley type equations [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2023
A mathematical collocation solution for generalized Burgers–Huxley and generalized Burgers–Fisher equations has been monitored using the weighted residual method with Hermite splines.
I. Kaur, S. Arora, I. Bala
doaj   +1 more source

Non-symmetric approximations of functional classes by splines on the real line

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
Let $S_{h,m}$, $h>0$, $m\in {\mathbb N}$, be the spaces of polynomial splines of order $m$ of deficiency 1 with nodes at the points $kh$, $k\in {\mathbb Z}$.
N.V. Parfinovych
doaj   +1 more source

Algorithms for Space Mapping Method on Spline Spaces over Modified Hierarchical T-Meshes

open access: yesMathematics, 2022
The space-mapping method provides a novel method for dimension formulae explanation and basis construction for the spline space over hierarchical T-meshes.
Jingjing Liu, Li Zhang, Weihong Zhang
doaj   +1 more source

Fitting Terrestrial Laser Scanner Point Clouds with T-Splines: Local Refinement Strategy for Rigid Body Motion

open access: yesRemote Sensing, 2021
T-splines have recently been introduced to represent objects of arbitrary shapes using a smaller number of control points than the conventional non-uniform rational B-splines (NURBS) or B-spline representatizons in computer-aided design, computer ...
Gaël Kermarrec   +2 more
doaj   +1 more source

LR B-splines to approximate bathymetry datasets: An improved statistical criterion to judge the goodness of fit

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2022
The task of representing remotely sensed scattered point clouds with mathematical surfaces is ubiquitous to reduce a high number of observations to a compact description with as few coefficients as possible.
Vibeke Skytt   +2 more
doaj   +1 more source

A Polynomial Splines Identification Method Based on Control Nets

open access: yesComplexity, 2020
In this study, based on Polynomial Splines with control nets, an identification method is investigated. We introduce polynomial splines with control nets defined over T-mesh.
Zhihua Wang, Hongmei Kang
doaj   +1 more source

Solid Model Generation for Digitized Organic Bodies via T-Splines

open access: yesHeritage, 2020
This paper presents a workflow for B-rep solid model generation of organic objects using T-splines constructed with quad-meshes. The aim is the creation of geometrically and topologically consistent B-rep solid models of heritage objects featuring ...
Luigi Barazzetti
doaj   +1 more source

Applying spline-based phase analysis to macroeconomic dynamics

open access: yesDependence Modeling, 2022
The article uses spline-based phase analysis to study the dynamics of a time series of low-frequency data on the values of a certain economic indicator. The approach includes two stages. At the first stage, the original series is approximated by a smooth
Lyudmila Gadasina, Lyudmila Vyunenko
doaj   +1 more source

Home - About - Disclaimer - Privacy