Results 11 to 20 of about 72,363 (244)

Solving recurrences for Legendre–Bernstein basis transformations

open access: yesExamples and Counterexamples, 2023
The change of basis matrix M from shifted Legendre to Bernstein polynomials and M−1 have applications in computer graphics. Algorithms use their properties to find the matrix elements efficiently.
D.A. Wolfram
doaj   +1 more source

Capturing outlines of generic shapes with cubic B´ezier curves using the Nelder–Mead simplex method [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2019
We design a fast technique for fitting cubic B´ezier curves to the boundary of 2D shapes. The technique is implemented by means of the Nelder–Mead simplex procedure to optimize the control points.
A. Ebrahimi   +2 more
doaj   +1 more source

Iterative Image Interpolation vs. Traditional Interpolation Methods [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2011
Image interpolation is an important image processing operation applied in diverse areas ranging from computer graphics, rendering, editing, medical image reconstruction, and online image viewing.
Samia Lazar
doaj   +1 more source

Intelligent Labeling of Tumor Lesions Based on Positron Emission Tomography/Computed Tomography

open access: yesSensors, 2022
Positron emission tomography/computed tomography (PET/CT) plays a vital role in diagnosing tumors. However, PET/CT imaging relies primarily on manual interpretation and labeling by medical professionals.
Shiping Ye   +5 more
doaj   +1 more source

Rational Cubics and Conics Representation: A Practical Approach

open access: yesInternational Islamic University Malaysia Engineering Journal, 2012
A rational cubic spline, with one family of shape parameters, has been discussed with the view to its application in Computer Graphics. It incorporates both conic sections and parametric cubic curves as special cases.
M. Sarfraz, Z. Habib
doaj   +1 more source

Research on 3D modeling method of complex rock strata surfaces based on unit divisio

open access: yesGong-kuang zidonghua, 2017
In view of the problem that existing 3D modeling method of rock strata surfaces does not systematically consider the construction of 3D modeling of complex rock strata surfaces with geological conditions such as fault and collapse column, horizontal ...
LIU Yong, CUI Hongqing
doaj   +1 more source

Computer Animation to teach interpolation

open access: yesModelling in Science Education and Learning, 2019
While mathematics courses are a basic topic in engineering studies, they are often considered as a difficult subject by students. In this work we present a learning experience based on computer animation and using the perspective of mathematical ...
Marta Pla-Castells   +3 more
doaj   +1 more source

Space-Time Transfinite Interpolation of Volumetric Material Properties [PDF]

open access: yes, 2014
The paper presents a novel technique based on extension of a general mathematical method of transfinite interpolation to solve an actual problem in the context of a heterogeneous volume modelling area.
Adzhiev, Valery   +4 more
core   +1 more source

A review on image-based rendering

open access: yesVirtual Reality & Intelligent Hardware, 2019
Image-based rendering is important both in the field of computer graphics and computer vision, and it is also widely used in virtual reality technology.
Yuan CHANG, Guo-Ping WANG
doaj   +1 more source

Piecewise line-symmetric spherical motions for orientation interpolation in 5-Axis CNC tool path planning

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2012
This paper employs quaternion biarcs to interpolate a set of orientations with angular velocity constraints. The resulting quaternion curve represents a piecewise line-symmetric spherical motion with C1 continuity.
Carlos Andrés Trujillo Suárez   +1 more
doaj   +1 more source

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