Zobrazeno 1 - 10
of 5 527
pro vyhledávání: '"B-splines"'
Publikováno v:
International Journal of Numerical Methods for Heat & Fluid Flow, 2024, Vol. 34, Issue 9, pp. 3493-3514.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/HFF-01-2024-0020
Autor:
Robert Świta, Zbigniew Suszyński
Publikováno v:
IET Image Processing, Vol 18, Iss 11, Pp 2984-2995 (2024)
Abstract Image processing often requires filtering, which can be effectively performed by using B‐spline surface approximation. This article presents a fast method of approximating data in rectangular (image) form using such surfaces. The method co
Externí odkaz:
https://doaj.org/article/d860c07db08f40bc92fa84eaa847fc1c
Autor:
S. Shallu, V.K. Kukreja
Publikováno v:
Iranian Journal of Numerical Analysis and Optimization, Vol 14, Iss Issue 3, Pp 736-761 (2024)
An improvised collocation scheme is applied for the numerical treatment of the nonlinear generalized Burgers–Fisher’s (gBF) equation using splines of degree three. In the proposed methodology, some subsequent rectifications are done in the spline
Externí odkaz:
https://doaj.org/article/901f484e2dc145eeb98d982d605da287
Publikováno v:
Visual Computing for Industry, Biomedicine, and Art, Vol 7, Iss 1, Pp 1-12 (2024)
Abstract This study proposes an image-based three-dimensional (3D) vector reconstruction of industrial parts that can generate non-uniform rational B-splines (NURBS) surfaces with high fidelity and flexibility. The contributions of this study include
Externí odkaz:
https://doaj.org/article/c04cfcb5a7c94d709be3ebf07b20851d
Publikováno v:
Frontiers in Applied Mathematics and Statistics, Vol 10 (2024)
BackgroundObesity has become an important threat to children’s health, with physical and psychological impacts that extend into adulthood. Limited physical activity and sedentary behavior are associated with increased obesity risk. Because children
Externí odkaz:
https://doaj.org/article/0132ab38c9ca4303a40c3a62695cf237
Autor:
Leonardo Fernández-Jambrina
Publikováno v:
Mathematics, Vol 12, Iss 18, p 2841 (2024)
In this paper, we make use of an inverse formula that relates the blossom of a NURBS curve, surface or Bézier triangle with its parametrisation, with no explicit reference to the control points and weights of the parametrisation. We make use of this
Externí odkaz:
https://doaj.org/article/83b0e23e77f24f2d98b640e95ee20f11
Akademický článek
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Autor:
Qi Xie, Yiting Huang
Publikováno v:
AIMS Mathematics, Vol 8, Iss 10, Pp 23472-23499 (2023)
In this work, a class of generalized quadratic Bernstein-like functions having controlling functions is constructed. It contains many particular cases from earlier papers. Regarding the controlling functions, sufficient conditions are given. Corner c
Externí odkaz:
https://doaj.org/article/5d9a8721c9d344239ef75ea0c5285c34
Publikováno v:
Electronic Research Archive, Vol 31, Iss 7, Pp 3848-3878 (2023)
We propose an asymptotic concentration approach combined with isogeometric analysis (IGA) for the topology optimization of two-dimensional (2D) linear elasticity structures under the commonly-used framework of the solid isotropic materials and penalt
Externí odkaz:
https://doaj.org/article/38fd494194e14c29b776001315ae47b4
Autor:
Weixi Wang, Yaoyu Li, Hongsheng Huang, Linping Hong, Siqi Du, Linfu Xie, Xiaoming Li, Renzhong Guo, Shengjun Tang
Publikováno v:
International Journal of Applied Earth Observations and Geoinformation, Vol 125, Iss , Pp 103557- (2023)
Accurate individual tree reconstruction based on laser point clouds is vital for precise biomass estimation, virtual geographic environment modeling, and simulation. However, mobile laser 3D scanning systems often capture tree point clouds obscured b
Externí odkaz:
https://doaj.org/article/2be65909953f4c27b9d83f6cd9787683