Results 31 to 40 of about 661,831 (374)

SEMANTIC URBAN MESH ENHANCEMENT UTILIZING A HYBRID MODEL [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
We propose a feature-based approach for semantic mesh segmentation in an urban scenario using real-world training data. There are only few works that deal with semantic interpretation of urban triangle meshes so far.
P. Tutzauer, D. Laupheimer, N. Haala
doaj   +1 more source

Sharp Feature-Preserving 3D Mesh Reconstruction from Point Clouds Based on Primitive Detection

open access: yesRemote Sensing, 2023
High-fidelity mesh reconstruction from point clouds has long been a fundamental research topic in computer vision and computer graphics. Traditional methods require dense triangle meshes to achieve high fidelity, but excessively dense triangles may lead ...
Qi Liu, Shibiao Xu, Jun Xiao, Ying Wang
doaj   +1 more source

Adaptive mesh refinements for thin shells whose middle surface is not exactly known [PDF]

open access: yes, 2008
A strategy concerning mesh refinements for thin shells computation is presented. The geometry of the shell is given only by the reduced information consisting in nodes and normals on its middle surface corresponding to a coarse mesh.
Destuynder, Philippe   +2 more
core   +4 more sources

Numerical solution of quasi-hydrodynamic equations on non-structured triangle mesh [PDF]

open access: yesКомпьютерные исследования и моделирование, 2009
A new flow modeling method on unstructured grid was proposed. As a basis system this method used quasi-hydro-dynamic equations. The finite volume method vas used for solving these equations. The Delaunay triangulation was used for constructing mesh. This
T. G. Elizarova   +2 more
doaj   +1 more source

Local refinement based on the 7-triangle longest-edge partition [PDF]

open access: yes, 2009
The triangle longest-edge bisection constitutes an efficient scheme for refining a mesh by reducing the obtuse triangles, since the largest interior angles are subdivided.
Moreno González, Auxiliadora   +3 more
core   +1 more source

Research on the Flattening Method of an Energy-Based Fabric Deformation Model in Garment Design

open access: yesComplexity, 2022
Surface flattening plays an important role in the whole process of garment design. We proposed a novel method by using three-dimensional triangle mesh flattening in this study.
Yuxiang Zhu   +5 more
doaj   +1 more source

Surface Reconstruction from Structured Light Images Using Differentiable Rendering

open access: yesSensors, 2021
When 3D scanning objects, the objective is usually to obtain a continuous surface. However, most surface scanning methods, such as structured light scanning, yield a point cloud.
Janus Nørtoft Jensen   +5 more
doaj   +1 more source

Repairing triangle meshes built from scanned point cloud [PDF]

open access: yes, 2007
The Reverse Engineering process consists of a succession of operations that aim at creating a digital representation of a physical model. The reconstructed geometric model is often a triangle mesh built from a point cloud acquired with a scanner ...
MORARU, George   +2 more
core   +5 more sources

OceanMesh2D 1.0: MATLAB-based software for two-dimensional unstructured mesh generation in coastal ocean modeling [PDF]

open access: yesGeoscientific Model Development, 2019
OceanMesh2D is a set of MATLAB functions with preprocessing and post-processing utilities to generate two-dimensional (2-D) unstructured meshes for coastal ocean circulation models.
K. J. Roberts   +2 more
doaj   +1 more source

The Quick Measure of a Nurbs Surface Curvature for Accurate Triangular Meshing

open access: yesPolish Maritime Research, 2014
NURBS surfaces are the most widely used surfaces for three-dimensional models in CAD/ CAE programs. When a model for FEM calculation is prepared with a CAD program it is inevitable to mesh it finally. There are many algorithms for meshing planar regions.
Kniat Aleksander
doaj   +1 more source

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