Results 11 to 20 of about 13,053,297 (285)

Cubic B-spline curve approximation by curve unclamping [PDF]

open access: yesComputer-Aided Design, 2010
A new approach for cubic B-spline curve approximation is presented. The method produces an approximation cubic B-spline curve tangent to a given curve at a set of selected positions, called tangent points, in a piecewise manner starting from a seed segment. A heuristic method is provided to select the tangent points.
Xiao-Diao Chen   +2 more
openaire   +6 more sources

A rational cubic spline with tension [PDF]

open access: yes, 1989
A rational cubic spline curve is described which has tension control parameters for manipulating the shape of the curve. The spline is presented in both interpolatory and rational B-spline forms, and the behaviour of the resulting representations is ...
Gregory, JA, Sarfraz, M
core   +6 more sources

The weighted v-spline as a double knot B-spline [PDF]

open access: yes, 1991
The local support basis representation of the ‘weighted v-spline’ is derived in terms of double knot cubic B-splines, so providing a convenient form for computing and analysing the ...
Gregory, JA, Zhou, J
core   +7 more sources

microRNA-7-5p and α-Synuclein SAA Predict Parkinson's Disease Phenoconversion. [PDF]

open access: yesAnn Clin Transl Neurol
ABSTRACT Objective Corroborate blood neuron‐derived extracellular vesicle (NDEV) alpha‐synuclein (αSyn), the CSF αSyn seed amplification assay (αSyn‐SAA), and blood microRNA‐7‐5p (miR‐7‐5p) as markers for Parkinson's disease (PD) phenoconversion and determine if combining these markers would help select subjects who would be more likely to phenoconvert.
Zadegan S   +4 more
europepmc   +2 more sources

Neutrosophication of Neutrosophic B-Spline Curve Approximation Model [PDF]

open access: yesNeutrosophic Sets and Systems
The neutrosophication process involves transforming crisp input value into neutrosophic value. It is a primary and crucial step for the operations within a neutrosophic set and system.
Siti Nur Idara Rosli   +1 more
doaj   +1 more source

A Proposed Method for Detecting Fake Art by Using B-Spline Curves [PDF]

open access: yesEngineering and Technology Journal, 2012
This paper presents proposed method for detecting fake art by using B-Spline curves. In this paper B-Spline curve is used with special technique helps to determine the difference between the excellent copy and the real McCoy image. In the proposed method
Abdul Monem S. Rahma   +1 more
doaj   +1 more source

Method of B-spline Curve Fitting Based on Improved Sparrow Search Algorithm [PDF]

open access: yesJisuanji gongcheng, 2023
For blade processing systems, the improvement of aero-engine blade aerodynamic performance design requires high-precision and high-efficiency processing technology.Blade machining systems based on traditional modeling methods have difficulty meeting ...
LU Suihao, HAN Yong, QI Yongyang, SONG Guoxian
doaj   +1 more source

Stretch-Energy-Minimizing B-Spline Interpolation Curves and Their Applications

open access: yesMathematics, 2023
In this paper, we propose a new method to construct energy-minimizing cubic B-spline interpolation curves by minimizing the approximated stretch energy. The construction of a B-spline interpolation curve with a minimal approximated stretch energy can be ...
Qian Ni, Chen Xie
doaj   +1 more source

B-SPLINE CURVE MODELLING BASED ON NATURE INSPIRED ALGORITHMS

open access: yesAsia-Pacific Journal of Information Technology and Multimedia, 2016
Curve modelling is an essential aspect in the field of geometric modelling. Conventional curve modelling generates large errors due to the number of data points which is more than the number of control polygon vertices.
Norazwin Buang   +3 more
doaj   +1 more source

COMPARISON OF B-SPLINE AND TRUNCATED SPLINE REGRESSION MODELS FOR TEMPERATURE FORECAST

open access: yesBarekeng, 2023
The spline regression model is a nonparametric model and it is applied to data that do not have a certain curve shape and do not have information about it.
Sri Sulistijowati Handajani   +6 more
doaj   +1 more source

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