Results 21 to 30 of about 9,704,991 (211)

Dual generalized B-spline functions and their applications in several approximation problems

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2015
A new construction method of dual generalized B-spline functions is presented in this paper. Due to the importance of generalized B-splines, several interesting applications of these dual functions in Computer Aided Manufacturing are also given.
Li ZHANG   +3 more
doaj   +1 more source

SURFACE APPROXIMATION OF COASTAL REGIONS: LR B-SPLINE FOR DETECTION OF DEFORMATION PATTERN [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Geospatial data acquisition of terrains produces huge, noisy and scattered point clouds. An efficient use of the acquired data requires structured and compact data representations. Working directly in a point cloud is often not appealing.
G. Kermarrec, V. Skytt, T. Dokken
doaj   +1 more source

Parametrization and penalties in spline models with an application to survival analysis [PDF]

open access: yes, 2008
A simple parametrization, built from the definition of cubic splines, is shown to facilitate the implementation and interpretation of penalized spline models, whatever configuration of knots is used.
Costa, Maria J. (Maria João)   +1 more
core   +1 more source

Fuzzy B-Spline Surface Modeling

open access: yesJournal of Applied Mathematics, 2014
This paper discusses the construction of a fuzzy B-spline surface model. The construction of this model is based on fuzzy set theory which is based on fuzzy number and fuzzy relation concepts.
Rozaimi Zakaria   +2 more
doaj   +1 more source

Recursive B-spline approximation using the Kalman filter

open access: yesEngineering Science and Technology, an International Journal, 2017
This paper proposes a novel recursive B-spline approximation (RBA) algorithm which approximates an unbounded number of data points with a B-spline function and achieves lower computational effort compared with previous algorithms.
Jens Jauch   +3 more
doaj   +1 more source

Towards B-Spline Atomic Structure Calculations

open access: yesAtoms, 2021
The paper reviews the history of B-spline methods for atomic structure calculations for bound states. It highlights various aspects of the variational method, particularly with regard to the orthogonality requirements, the iterative self-consistent ...
Charlotte Froese Fischer
doaj   +1 more source

Método de restitución fotográfica a partir de elementos circulares mediante uso de arcos tipo B-Splines cónicas, aplicado al "Diorama" de la exposición "La Nova Barcelona" (1934). Aportaciones para su futura museografía

open access: yesEGA, 2013
Aplicación de un nuevo método para la restitución fotográfica (de fotografía única) a partir de elementos circulares presentes en la proyección, mediante la adaptación interactiva de arcos de tipo b-spline cuadráticas (cónicas), con la finalidad de ...
Galdric Santana   +1 more
doaj   +1 more source

Repetitive Control Scheme of Robotic Manipulators Based on Improved B-Spline Function

open access: yesComplexity, 2021
In this paper, a repetitive control scheme of a 2-DOF robotic manipulator based on the improved cubic B-spline curve is proposed. Firstly, a repetitive controller for robotic manipulator is designed, which is composed of an iterative controller and ...
Xingyu Wang   +5 more
doaj   +1 more source

Kernel B-splines and interpolation

open access: yesNumerical Algorithms, 2006
Kernel B-splines comprise a more general approach to radial basis function interpolation, in that the more specific radial basis functions are replaced by positive definite kernels or conditionally positive kernels. In this paper, differences are applied to the conditionally positive definite kernels in order that they decay (more quickly) and that the
Bozzini M, Lenarduzzi L, Schaback R
openaire   +5 more sources

Spline- and tensor-based signal reconstruction : from structure analysis to high-performance algorithms to multiplatform implementations and medical applications [PDF]

open access: yes, 2015
The problem of signal reconstruction is of fundamental practical value for many applications associated with the field of signal and image processing.
Morozov, Oleksii
core   +1 more source

Home - About - Disclaimer - Privacy