Results 81 to 90 of about 9,704,991 (211)
A comment on Ewald Quak's ``"About B-splines"
Journal of Numerical Analysis and Approximation Theory, 2016 The early contributions to B-spline theory by Tiberiu Popoviciu and by Liubomir Chakalov are recalled.
Carl de Boor
doaj +2 more sources
B-spline curve theory: An overview and applications in real life
Nonlinear EngineeringThis study commences by delving into B-spline curves, their essential properties, and their practical implementations in the real world. It also examines the role of knot vectors, control points, and de Boor’s algorithm in creating an elegant and ...
Hasan Md. Shahid +4 more
doaj +1 more source
Point constraints for B-spline surfaces based on energy model and least square method
, 2007 This paper presents an algorithm of the point constraint for B-spline surfaces. Based on static energy model, the shape of the surface can be sculpted in an intuitive manner by changing the force distribution vector and control point constraint, thus ...
Xia RB(夏仁波) +2 more
core
Handling Overlapping Asymmetric Data Sets—A Twice Penalized P-Spline Approach
MathematicsAims: Overlapping asymmetric data sets are where a large cohort of observations have a small amount of information recorded, and within this group there exists a smaller cohort which have extensive further information available.
Matthew McTeer +3 more
doaj +1 more source
, 2008 This chapter promotes, details and exploits the fact that (univariate) splines, i.e., smooth piecewise polynomial functions, are weighted sums of B-splines. 1.
Spline Curves (p
core
اشاره: تحدب خطوط تراز و طراحى هندسى قوسها(1) (بخش اول) [PDF]
اطلاعات جغرافیایی, 2009 طراحى قوس ها در تولید نقشه هاى توپوگرافى دقیق مانند طراحى هندسى راه، فتوگرامترى برد کوتاه و شبیه سازى هاى پزشکى براساس نوع قوس و متناسب با اهداف طراحى صورت مى پذیرد.
مهدی مدیری
doaj
Eulerian polynomials and B-splines
Journal of Computational and Applied Mathematics, 2012 The author considers exponential splines \(\phi_n (x;z)\) of degree \(n\) to the base \(z\), defined by \[ \phi_n(x;z) := \sum_{j\in \mathbb Z} z^j\,B_{n+1} (x - j), \] where \(B_n\) denotes the cardinal B-spline of order \(n\). These exponential splines can be presented and evaluated using exponential Euler polynomials, which relate to some well-known
openaire +1 more source
Alternate spline: A generalized B-spline
, 1987 A new kind of spline is defined and its properties are studied.
Cheng, Fuhua, Bien, Ai-Ping
core +1 more source
A Generalised Linear and Nonlinear Spline filter
In this paper, a generalised spline filter, that has a unified description for both the linear spline filter and the nonlinear robust spline filter, is proposed.
Zeng, Wenhan +2 more
core
Medical Object 3D Modelling Using B-spline Surface
3D visualization of a medical object is an important and actual task in medical engineering. At the same time, the input data for this task often is described in 2D layer form (for example, medical images acquired with Magnetic Resonance Imaging ...
Sisojevs, Aleksandrs, Glazs, Aleksandrs
core