Results 1 to 10 of about 208 (117)

Asymptotic Frame Fields of Rational Bézier Curves

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2021
Bézier curves are a type of curves used in computer aided design and related fields. The curves can be defined with the help of De Casteljau algorithm, which is one of the most basic elements of curve and surface design, and Bernstein polynomials, which ...
Tunahan Turhan   +2 more
doaj   +1 more source

Necessary and Sufficient Conditions for Expressing Quadratic Rational Bézier Curves

open access: yesFrontiers in Physics, 2020
Quadratic rational Bézier curve transformation is widely used in the field of computational geometry. In this paper, we offer several important characteristics of the quadratic rational Bézier curve.
Chaoyu Yang   +3 more
doaj   +1 more source

Approximation of conic sections by weighted Lupaş post-quantum Bézier curves

open access: yesDemonstratio Mathematica, 2022
This paper deals with weighted Lupaş post-quantum Bernstein blending functions and Bézier curves constructed with the help of bases via (p,q)\left(p,q)-integers. These blending functions form normalized totally positive bases.
Khan Asif   +3 more
doaj   +1 more source

A Rational Quadratic Trigonometric Spline (RQTS) as a Superior Surrogate to Rational Cubic Spline (RCS) with the Purpose of Designing

open access: yesApplied Sciences, 2022
A key technique for modeling 2D objects is built using a Bézier-like rational quadratic trigonometric function with two form parameters. Since they are generated employing weights, the suggested rational quadratic trigonometric spline curve schemes are ...
Shamaila Samreen   +4 more
doaj   +1 more source

Craniofacial reconstruction using rational cubic ball curves. [PDF]

open access: yesPLoS ONE, 2015
This paper proposes the reconstruction of craniofacial fracture using rational cubic Ball curve. The idea of choosing Ball curve is based on its robustness of computing efficiency over Bezier curve.
Abdul Majeed   +3 more
doaj   +1 more source

Degree reduction of Rational Bézier curves by hybrid optimization method

open access: yesResults in Applied Mathematics, 2022
The paper addresses the problem of degree reduction of rational Bézier curves. A new optimization problem is formulated based on the weighted sum method, weighted least squares and quadratic programming.
Mao Shi
doaj   +1 more source

Interpolation method for quaternionic-Bezier curves

open access: yesLietuvos Matematikos Rinkinys, 2018
We study rational quaternionic-Bézier curves in three dimensional space. We construct the quadratic quaternionic-Bézier curve which interpolates five points, or three points and two tangent vectors.
Severinas Zube
doaj   +1 more source

Quaternion rational Bézier curves

open access: yesLietuvos Matematikos Rinkinys, 2011
We extended the rational Bézier model for space curve, by allowing quaternion weights. These curves are Möbius invariant and have halved degree with respect to real Bézier curves. This simplify the analysis of curves. In general, these curves are in four
Severinas Zube
doaj   +1 more source

Curve and surface construction based on the generalized toric-Bernstein basis functions

open access: yesOpen Mathematics, 2020
The construction of parametric curve and surface plays an important role in computer aided geometric design (CAGD), computer aided design (CAD), and geometric modeling.
Li Jing-Gai, Zhu Chun-Gang
doaj   +1 more source

Neural-Network-Based Curve Fitting Using Totally Positive Rational Bases

open access: yesMathematics, 2020
This paper proposes a method for learning the process of curve fitting through a general class of totally positive rational bases. The approximation is achieved by finding suitable weights and control points to fit the given set of data points using a ...
Rocio Gonzalez-Diaz   +3 more
doaj   +1 more source

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