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Tetrahedral Mesh Generation for Medical Imaging ⋆

by Andriy Fedorov, Nikos Chrisochoides, Ron Kikinis
"... Abstract. We describe the open source implementation of an adaptive tetrahedral mesh generator particularly targeted for non-rigid FEM registration of MR images. While many medical imaging applications require robust mesh generation, there are few codes available. Moreover, most of the practical imp ..."
Abstract - Cited by 4 (2 self) - Add to MetaCart
Abstract. We describe the open source implementation of an adaptive tetrahedral mesh generator particularly targeted for non-rigid FEM registration of MR images. While many medical imaging applications require robust mesh generation, there are few codes available. Moreover, most of the practical

Tetrahedral Mesh Generation by Delaunay Refinement

by Jonathan Richard Shewchuk - Proc. 14th Annu. ACM Sympos. Comput. Geom , 1998
"... Given a complex of vertices, constraining segments, and planar straight-line constraining facets in E 3 , with no input angle less than 90 ffi , an algorithm presented herein can generate a conforming mesh of Delaunay tetrahedra whose circumradius-to-shortest edge ratios are no greater than two ..."
Abstract - Cited by 133 (6 self) - Add to MetaCart
Given a complex of vertices, constraining segments, and planar straight-line constraining facets in E 3 , with no input angle less than 90 ffi , an algorithm presented herein can generate a conforming mesh of Delaunay tetrahedra whose circumradius-to-shortest edge ratios are no greater than

Unstructured Tetrahedral Mesh Generation Technology

by Alexander A. Danilov
"... The whole process of mesh generation is presented in detail. Advancing front technique (AFT) is pro-posed for 3D tetrahedral mesh generation [1]. AFT starts from initial front. Initial front is a boundary surface conformal triangulation. On each step a new tetrahedron is constructed and the front is ..."
Abstract - Cited by 1 (1 self) - Add to MetaCart
The whole process of mesh generation is presented in detail. Advancing front technique (AFT) is pro-posed for 3D tetrahedral mesh generation [1]. AFT starts from initial front. Initial front is a boundary surface conformal triangulation. On each step a new tetrahedron is constructed and the front

Comparing techniques for tetrahedral mesh generation

by M. A. S. Lizier, J. F. Shepherd, L. G. Nonato, J. L. D. Comba, C. T. Silva - In Inaugural International Conference of the Engineering Mechanics Institute , 2008
"... The growing importance of subject-specific modeling and simulation in medical applications has increased the need for automatic techniques for creating high-quality meshes directly from medical data. We discuss the main aspects related to volumetric mesh generation from iso-surfaces. We take a pract ..."
Abstract - Cited by 3 (1 self) - Add to MetaCart
The growing importance of subject-specific modeling and simulation in medical applications has increased the need for automatic techniques for creating high-quality meshes directly from medical data. We discuss the main aspects related to volumetric mesh generation from iso-surfaces. We take a

Tetrahedral Mesh Generation Based on Node Insertion in . . .

by R. Radovitzky, M. Ortiz , 1998
"... A method of unstructured tetrahedral-mesh generation for general three-dimensional domains is presented. Aconventional boundary representation is adopted as the basis for the description of solids with evolving geometry and topology. The geometry of surfaces is represented either analytically of by ..."
Abstract - Cited by 30 (15 self) - Add to MetaCart
A method of unstructured tetrahedral-mesh generation for general three-dimensional domains is presented. Aconventional boundary representation is adopted as the basis for the description of solids with evolving geometry and topology. The geometry of surfaces is represented either analytically

Abstract Tetrahedral Mesh Generation for Deformable Bodies

by Neil Molino
"... Motivated by the simulation of deformable bodies, we propose a new tetrahedral mesh generation algorithm that produces both high quality elements and a mesh that is well conditioned for subsequent large deformations. We use a signed distance function defined on a grid in order to represent the objec ..."
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Motivated by the simulation of deformable bodies, we propose a new tetrahedral mesh generation algorithm that produces both high quality elements and a mesh that is well conditioned for subsequent large deformations. We use a signed distance function defined on a grid in order to represent

Implementation in ALBERTA of an Automatic Tetrahedral Mesh Generator

by R. Montenegro, J. M. Cascón, J. M. Escobar, E. Rodríguez, G. Montero
"... This paper introduces a new automatic tetrahedral mesh generator on the adaptive finite element ALBERTA code. The procedure can be applied to 3-D domains with boundary surfaces which are projectable on faces of a cube. The generalization of the mesh generator for complex domains which can be split i ..."
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This paper introduces a new automatic tetrahedral mesh generator on the adaptive finite element ALBERTA code. The procedure can be applied to 3-D domains with boundary surfaces which are projectable on faces of a cube. The generalization of the mesh generator for complex domains which can be split

Tetrahedral Mesh Generation With Multiple Elements Through The Thickness

by Rao Garimella Mark, Mark S. Shephard , 1995
"... The problem of automatically generating unstructured tetrahedral meshes having a user specified number of elements in the thickness direction without over-refinement in the other directions is addressed in this paper. The procedures generate meshes with multiple elements through the thickness by ani ..."
Abstract - Cited by 1 (0 self) - Add to MetaCart
The problem of automatically generating unstructured tetrahedral meshes having a user specified number of elements in the thickness direction without over-refinement in the other directions is addressed in this paper. The procedures generate meshes with multiple elements through the thickness

The Cutting Pattern Problem for Tetrahedral Mesh Generation

by Xiaotian Yin, Wei Han, Xianfeng Gu, Shing-tung Yau
"... Summary. In this work we study the following cutting pattern problem. Given a triangulated surface (i.e. a two-dimensional simplicial complex), assign each triangle with a triple of ±1, one integer per edge, such that the assignment is both complete (i.e. every triangle has integers of both signs) a ..."
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. For all the proposed algorithms, the convergence is validated and the complexity is analyzed. Key words: cutting pattern, graph labeling, tetrahedral mesh, prism

TETRAHEDRAL MESH GENERATION FROM VOLUMETRIC BINARY AND GRAY- SCALE IMAGES

by Qianqian Fang, David A. Boas
"... We report a general purpose mesh generator for creating finite-element surface or volumetric mesh from 3D binary or gray-scale medical images. This toolbox incorporates a number of existing free mesh processing utilities and enables researchers to perform a range of mesh processing tasks for image-b ..."
Abstract - Cited by 19 (0 self) - Add to MetaCart
-based mesh generation, including raw image processing, surface mesh extraction, surface re-sampling, and multi-scale/adaptive tetrahedral mesh generation. We also implemented robust algorithms for meshing opensurfaces and sub-region labeling. Atomic meshing utilities for each processing step can be accessed
Results 1 - 10 of 5,870