Jun Wang,Zeyun Yu
Jun Wang
Tetrahedral meshes are being extensively used in finite element methods (FEM). This paper proposes an algorithm to generate feature-sensitive and high-quality tetrahedral meshes from an arbitrary surface mesh model. A top-down octree subdiv...
Blends of canal surfaces from polyhedral medial transform representations [0.03%]
基于多面体中点变换表示的 Canal 表面混合算法
Bohumír Bastl,Bert Jüttler,Miroslav Lávička et al.
Bohumír Bastl et al.
We present a new method for constructing [Formula: see text] blending surfaces between an arbitrary number of canal surfaces. The topological relation of the canal surfaces is specified via a convex polyhedron and the design technique is ba...
Mario Kapl,Marek Byrtus,Bert Jüttler
Mario Kapl
We present a new method for generating a [Formula: see text]-surface from a triangular network of compatible surface strips. The compatible surface strips are given by a network of polynomial curves with an associated implicitly defined sur...
Guanglei Xiong,Gilwoo Choi,Charles A Taylor
Guanglei Xiong
Image-based blood flow computation provides great promise for evaluation of vascular devices and assessment of surgical procedures. However, many previous studies employ idealized arterial and device models or only patient-specific models f...
John Edwards,Chandrajit Bajaj
John Edwards
Motivated by the need for correct and robust 3D models of neuronal processes, we present a method for reconstruction of spatially realistic and topologically correct models from planar cross sections of multiple objects. Previous work in 3D...
Andrew Gillette,Chandrajit Bajaj
Andrew Gillette
Mixed finite element methods solve a PDE using two or more variables. The theory of Discrete Exterior Calculus explains why the degrees of freedom associated to the different variables should be stored on both primal and dual domain meshes ...
Kiran H Shivanna,Srinivas C Tadepalli,Nicole M Grosland
Kiran H Shivanna
Hexahedral finite element mesh development for anatomic structures and biomedical implants can be cumbersome. Moreover, using traditional meshing techniques, detailed features may be inadequately captured. In this paper, we describe methodo...
Physically Based Modeling and Simulation with Dynamic Spherical Volumetric Simplex Splines [0.03%]
基于物理的动态球积simplespline体积网格模型和仿真
Yunhao Tan,Jing Hua,Hong Qin
Yunhao Tan
In this paper, we present a novel computational modeling and simulation framework based on dynamic spherical volumetric simplex splines. The framework can handle the modeling and simulation of genus-zero objects with real physical propertie...
Jiantao Pu,David Gur
Jiantao Pu
Freehand sketching is widely regarded as an efficient and natural way for interaction between computers and humans. We present a robust computerized scheme to automatically segment freehand sketches into a series of components with specific...
Robust principal axes determination for point-based shapes using least median of squares [0.03%]
基于点的形状利用最小中位平方的鲁棒主轴确定方法
Yu-Shen Liu,Karthik Ramani
Yu-Shen Liu
A robust technique for determining the principal axes of a 3D shape represented by a point set, possibly with noise, is presented. We use techniques from robust statistics to guide the classical principal component analysis (PCA) computatio...