Results 1 to 10 of about 5,478,967 (327)
Mesh Optimization for Monte Carlo-Based Optical Tomography [PDF]
Photonics, 2015 Mesh-based Monte Carlo techniques for optical imaging allow for accurate modeling of light propagation in complex biological tissues. Recently, they have been developed within an efficient computational framework to be used as a forward model in optical ...
Andrew Edmans, Xavier Intes
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Fast harmonic tetrahedral mesh optimization [PDF]
The Visual Computer, 2022 AbstractMesh optimization is essential to enable sufficient element quality for numerical methods such as the finite element method (FEM). Depending on the required accuracy and geometric detail, a mesh with many elements is necessary to resolve small-scale details. Sequential optimization of large meshes often imposes long run times.
D. Ströter +3 more
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P2 Mesh Optimization Operators [PDF]
International Meshing Roundtable Conference, 2019 Curved mesh generation starting from a P1 mesh relies on mesh deformation and mesh optimization techniques. Mesh optimization techniques consist in locally modifying the mesh in order to improve it with respect to a given quality criterion. This work presents the generalization of two mesh quality-based optimization operators to P2 meshes.
Feuillet, Rémi +2 more
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Ordered Statistics Vertex Extraction and Tracing Algorithm (OSVETA)
Advances in Electrical and Computer Engineering, 2012 We propose an algorithm for identifying vertices from three dimensional (3D) meshes that are most important for a geometric shape creation. Extracting such a set of vertices from a 3D mesh is important in applications such as digital watermarking, but ...
VASIC, B.
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Proceedings of the 20th annual conference on Computer graphics and interactive techniques, 1993 We present a method for solving the following problem: Given a set of data points scattered in three dimensions and an initial triangular mesh M0, produce a mesh M, of the same topological type as M0, that fits the data well and has a small number of vertices.
Hugues Hoppe +4 more
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IEEE Access, 2022 Wireless Mesh Networks (WMNs) have rapid real developments during the last decade due to their simple implementation at low cost, easy network maintenance, and reliable service coverage.
Sylia Mekhmoukh Taleb +5 more
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A Derivative-Free Mesh Optimization Algorithm for Mesh Quality Improvement and Untangling [PDF]
Mathematical Problems in Engineering, 2015 We propose a derivative-free mesh optimization algorithm, which focuses on improving the worst element quality on the mesh. The mesh optimization problem is formulated as a min-max problem and solved by using a downhill simplex (amoeba) method, which computes only a function value without needing a derivative of Hessian of the objective function ...
Jibum Kim, Myeonggyu Shin, Woochul Kang
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Flexible Isosurface Extraction for Gradient-Based Mesh Optimization [PDF]
ACM Transactions on Graphics, 2023 This work considers gradient-based mesh optimization, where we iteratively optimize for a 3D surface mesh by representing it as the isosurface of a scalar field, an increasingly common paradigm in applications including photogrammetry, generative ...
Tianchang Shen +9 more
semanticscholar +1 more source
One-2-3-45: Any Single Image to 3D Mesh in 45 Seconds without Per-Shape Optimization [PDF]
Neural Information Processing Systems, 2023 Single image 3D reconstruction is an important but challenging task that requires extensive knowledge of our natural world. Many existing methods solve this problem by optimizing a neural radiance field under the guidance of 2D diffusion models but ...
Minghua Liu +6 more
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Accelerating High-Order Mesh Optimization Using Finite Element Partial Assembly on GPUs [PDF]
Journal of Computational Physics, 2022 In this paper we present a new GPU-oriented mesh optimization method based on high-order finite elements. Our approach relies on node movement with fixed topology, through the Target-Matrix Optimization Paradigm (TMOP) and uses a global nonlinear solve ...
Jean-Sylvain Camier +6 more
semanticscholar +1 more source