Results 31 to 40 of about 421,436 (163)

An interpolation method of b-spline surface for hull form design

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2010
This paper addresses the problem of B-spline surface interpolation of scattered points for a hull form design, which are not arbitrarily scattered, but can be arranged in a series of contours permitting variable number of points in the contours.
Hyung-Bae Jung
doaj   +1 more source

Application of Quasi-Uniform B-Spline Surfaces with Different Degrees to Mesoscale Eddy Fitting

open access: yesRemote Sensing
Satellite altimetry technology provides along-track sea level anomaly (SLA) data for studying mesoscale eddies. However, accurately reconstructing their spatial structures from discrete and non-uniform along-track observations remains a significant ...
Chunzheng Kong   +3 more
doaj   +1 more source

B-Spline Surface Fitting on Scattered Points

open access: yes, 2016
This paper looks into the effectiveness of B-spline approximation algorithm in approximating the bicubic B-spline surface from the set of scattered data points which are taken from the scanned 3D object in the form of point sets.
Abd. Majid, Ahmad   +2 more
core   +1 more source

A Reconstruction Algorithm for Blade Surface Based on Less Measured Points

open access: yesInternational Journal of Aerospace Engineering, 2015
A reconstruction algorithm for blade surface from less measured points of section curves is given based on B-spline surface interpolation. The less measured points are divided into different segments by the key geometric points and throat points which ...
Jia Liu   +5 more
doaj   +1 more source

Parametric Surface Modelling for Tea Leaf Point Cloud Based on Non-Uniform Rational Basis Spline Technique

open access: yesSensors, 2021
Plant leaf 3D architecture changes during growth and shows sensitive response to environmental stresses. In recent years, acquisition and segmentation methods of leaf point cloud developed rapidly, but 3D modelling leaf point clouds has not gained much ...
Wenchao Wu, Yongguang Hu, Yongzong Lu
doaj   +1 more source

Modeling technology of curved surface development for puffer fish

open access: yesAdvances in Mechanical Engineering, 2020
The drag reduction mechanism of puffer epidermis was closely related to its real geometry. In order to solve the modeling problem of epidermal spines on the puffer surface, a modeling method for the expansion of puffer shape was proposed.
Honggen Zhou   +4 more
doaj   +1 more source

An Approach To 3D Surface Curvature Analysis [PDF]

open access: yesEngineering and Technology Journal, 2005
This paper reviews the graphical tools available for checking the quality of CAD/CAM (Computer Aided Design / Manufacture) surface models (B-Spline form).
Laith Mohammed
doaj   +1 more source

B-spline surface based 3D reconstruction method for deflectometry

open access: yes, 2022
In the field of optical three-dimension (3-D) measurement, reconstruction usually is completed by the integration of a two-dimensional (2-D) gradient data set.
Zhang, Zonghua   +5 more
core   +1 more source

Measurement point sampling method for inspection of parts with free-form surfaces

open access: yesAdvances in Mechanical Engineering, 2018
Parts must be measured to evaluate the manufacturing accuracy in order to check whether their dimension is in expected tolerance. In engineering, parts with free-form surfaces are generally measured by high-precision coordinate-measuring machines.
Dezhong Zhao   +5 more
doaj   +1 more source

Search For Critical Slip Surface In Slope Stability Analysis By Spline-Based Ga Method [PDF]

open access: yes, 2008
The stability of a soil slope is usually analyzed by limit equilibrium methods, in which the identification of the critical slip surface is of principal importance.
孙建平   +3 more
core   +1 more source

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