Results 21 to 30 of about 421,436 (163)

Surface profile prediction and analysis applied to turning process [PDF]

open access: yes, 2008
An approach for the prediction of surface profile in turning process using Radial Basis Function (RBF) neural networks is presented. The input parameters of the RBF networks are cutting speed, depth of cut and feed rate.
LU, Chen, COSTES, Jean-Philippe
core   +1 more source

An efficient data structure for calculation of unstructured T-spline surfaces

open access: yesVisual Computing for Industry, Biomedicine, and Art, 2019
To overcome the topological constraints of non-uniform rational B-splines, T-splines have been proposed to define the freeform surfaces. The introduction of T-junctions and extraordinary points makes it possible to represent arbitrarily shaped models by ...
Wei Wang   +3 more
doaj   +1 more source

B-spline Functional Model of Terrestrial Sunshape Based on Measured Data [PDF]

open access: yesJisuanji kexue
The function describing the distribution of solar radiative energy received on the ground is called the surface sunshape model.It is important for accurate simulation of the distribution of radiative flux density on the receiver in solar power tower.The ...
SHEN Tong, ZHAO Le, FENG Jieqing
doaj   +1 more source

Smoothing under Diffeomorphic Constraints with Homeomorphic Splines [PDF]

open access: yes, 2010
In this paper we introduce a new class of diffeomorphic smoothers based on general spline smoothing techniques and on the use of some tools that have been recently developed in the context of image warping to compute smooth diffeomorphisms.
Gadat, Sébastien, Bigot, Jérémie
core   +1 more source

Stereo matching based on segmented B‐spline surface fitting and accelerated region belief propagation

open access: yesIET Computer Vision, 2015
The authors propose a new stereo matching algorithm based on an iterative optimisation framework including bi‐cubic B‐spline surface fitting and accelerated region belief propagation (BP).
Jingzhou Huang
doaj   +1 more source

B-Spline Solutions of General Euler-Lagrange Equations

open access: yesMathematics, 2019
The Euler-Lagrange equations are useful for solving optimization problems in mechanics. In this paper, we study the B-spline solutions of the Euler-Lagrange equations associated with the general functionals.
Lanyin Sun, Chungang Zhu
doaj   +1 more source

Fast Surface Reconstruction Technique Based on Anderson Accelerated I-PIA Method

open access: yesIEEE Access, 2023
For curve and surface reconstruction, the implicit progressive-iterative approximation (I-PIA) is widely used in many applications because it is efficient in data fitting and handling noise and missing data. By introducing Anderson extrapolation to the I-
Jingguo Dai, Yeqing Yi, Chengzhi Liu
doaj   +1 more source

A New Method for Deformation of B-spline Surfaces

open access: yes, 2010
This paper presents an efficient method for deforming B-spline surfaces, based on the surface energy minimization. Firstly, using an analogy between the B-spline surface patch and the thin-plate element of the finite element method, and applying external
Cheng XG(程仙国), Liu WJ(刘伟军)
core   +2 more sources

Systolic algorithms for B-spline patch generation

open access: yes, 1991
A systolic array for constructing the blending functions of B-spline curves and surfaces is described and shown to be 7k times faster than the equivalent sequential computation.
Megson, G.M.
core   +1 more source

A tension approach to controlling the shape of cubic spline surfaces on FVS triangulations

open access: yes, 2009
We propose a parametric tensioned version of the FVS macro-element to control the shape of the composite surface and remove artificial oscillations, bumps and other undesired behaviour.
Manni, C   +7 more
core   +1 more source

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