Results 31 to 40 of about 18,772 (276)
Application of Collocation BEM for Axisymmetric Transmission Problems in Electro- and Magnetostatics
Mathematical Modelling and Analysis, 2016 This paper considers the numerical solution of boundary integral equations for an exterior transmission problem in a three-dimensional axisymmetric domain.
Olga Lavrova, Viktor Polevikov
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Vietnam Journal of Mechanics, 2023 This paper presents an extension of the Proportional Topology Optimization (PTO) with virtual elements for multi-material problems with mass and cost constraints.
Minh Tuan Tran, Minh Ngoc Nguyen
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A 3D INDOOR-OUTDOOR BENCHMARK DATASET FOR LoD3 BUILDING POINT CLOUD SEMANTIC SEGMENTATION [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023 Deep learning (DL) algorithms require high quality training samples as well as accurate and thorough annotations to work effectively. Up until now a limited number of datasets are available to train DL techniques for semantic segmentation of 3D building ...
Y. Cao, M. Scaioni
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A Virtual Element Method for elastic and inelastic problems on polytope meshes [PDF]
, 2015 We present a Virtual Element Method (VEM) for possibly nonlinear elastic and inelastic problems, mainly focusing on a small deformation regime. The numerical scheme is based on a low-order approximation of the displacement field, as well as a suitable ...
da Veiga, L. Beirão +2 more
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Structure-aware Building Mesh Polygonization
ISPRS Journal of Photogrammetry and Remote Sensing, 2020 We introduce a novel approach for the polygonization of Multi-view Stereo (MVS) meshes of buildings, which results in compact and topologically valid models. The main characteristic of our method is structure awareness, i.e., the recovery and preservation of the initial mesh primitives and their adjacencies.
Bouzas, V. (author) +2 more
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Mesh smoothing algorithm based on exterior angles split.
PLoS ONE, 2020 Since meshes of poor quality give rise to low accuracy in finite element analysis and kinds of inconveniences in many other applications, mesh smoothing is widely used as an essential technique for the improvement of mesh quality.
Yongqing Hai +3 more
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A steganalytic algorithm for 3D polygonal meshes [PDF]
2014 IEEE International Conference on Image Processing (ICIP), 2014 We propose a steganalytic algorithm for watermarks embedded by Cho et al.'s mean-based algorithm [1]. The main observation is that while in a clean model the means of Cho et al.'s normalized histogram bins are expected to follow a Gaussian distribution, in a marked model their distribution will be bimodal. The proposed algorithm estimates the number of
Yang, Ying +3 more
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On mesh refinement procedures for polygonal virtual elements
Applications in Engineering ScienceThis work concerns the application of adaptive refinement procedures to meshes of unstructured polygonal virtual elements. Adaptive refinement indicators previously proposed by the authors, and investigated for meshes of structured quadrilateral elements,
Daniel van Huyssteen +3 more
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Virtual Element Methods for hyperbolic problems on polygonal meshes [PDF]
, 2016 In the present paper we develop the Virtual Element Method for hyperbolic problems on polygonal meshes, considering the linear wave equations as our model problem. After presenting the semi-discrete scheme, we derive the convergence estimates in H^1 semi-
Vacca, Giuseppe
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Second-order finite element discretization of Stokes equations on convex polygonal meshes
Results in Applied MathematicsIn this paper, we construct two finite element discretizations on convex polygonal meshes for the Stokes equations, using the generalized barycentric coordinates (GBCs).
Yanyan Song, Yanqiu Wang, Qiao Xin
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