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Generation of hierarchical multi-resolution medial axis for CAD models

Housheng Zhu, Yusheng Liu, Jianjun Zhao
2016 Advances in Engineering Software  
A difficulty for the current methods for the generation of MA of CAD models is the balance between the efficiency and the quality.  ...  In this study, an approach to iteratively generating hierarchical multi-resolution MA is proposed.  ...  Conclusions In this study, a method is proposed to generate the hierarchical multi-resolution MA for CAD models.  ... 
doi:10.1016/j.advengsoft.2016.01.006 fatcat:xafndtat3zhvzcrbcx4r6au7zm

Feature-based non-manifold modeling system to integrate design and analysis of injection molding products

Sang Hun Lee
2009 Journal of Mechanical Science and Technology  
For such a process, we developed a feature-based design system based on a non-manifold modeling kernel supporting feature-based multi-resolution and multi-abstraction modeling capabilities.  ...  In this system, the geometric models for the CAD and CAE systems are merged into a single master model in a non-manifold topological representation, and then, for a given level of detail and abstraction  ...  Idealized models for the example part.  ... 
doi:10.1007/s12206-009-0407-3 fatcat:qqellkynive7lkcqmmsbaav34e

A survey of CAD model simplification techniques for physics-based simulation applications

Atul Thakur, Ashis Gopal Banerjee, Satyandra K. Gupta
2009 Computer-Aided Design  
Currently a rich body of literature exists that describe many successful techniques for fully-automatic or semi-automatic simplification of CAD models for a wide variety of applications.  ...  Automated CAD model simplification plays an important role in effectively utilizing physicsbased simulation during the product realization process.  ...  Medial Axis Transform based Dimension Reduction One of the well established techniques for dimension reduction is medial axis transform (MAT).  ... 
doi:10.1016/j.cad.2008.11.009 fatcat:52wtq4yuvbhjpp25pkdekhlo2u

3D object comparison based on shape descriptors

S. Biasotti, S. Marini
2005 International journal of computer applications in technology  
Examples of structural models are: multi-resolution and multi-scale models [27], curvature based surface decompositions [52][14], topological decompositions [12][13], shape segmentations, etc..  ...  In this sense, methods for automatically extracting the semantic content of digital shapes and generating shape models in which knowledge/semantics is explicitly represented will become more and more necessary  ...  The authors would like to thank all the people of the Shape Modelling Group at IMATI-CNR, in particular Bianca Falcidieno and Michela Spagnuolo for their fruitful support.  ... 
doi:10.1504/ijcat.2005.006465 fatcat:2gt44aoajfcs7apwbvgjflx3xm


Kiril Vidimce, Alexandre Kaspar, Ye Wang, Wojciech Matusik
2016 Proceedings of the 29th Annual Symposium on User Interface Software and Technology - UIST '16  
ABSTRACT We demonstrate a new approach for designing functional material definitions for multi-material fabrication using our system called Foundry.  ...  Foundry provides an interactive and visual process for hierarchically designing spatially-varying material properties (e.g., appearance, mechanical, optical).  ...  The 3D models and images of physical materials were obtained from TurboSquid, GrabCAD, and Wikimedia. This work was funded in part by NSF grants 1138967, 1409310, and 1547088.  ... 
doi:10.1145/2984511.2984516 dblp:conf/uist/VidimceKWM16 fatcat:6cwbl447vvan3m4ythof25pmjq

The Second World Congress on Intelligent Manufacturing Processes and Systems

1996 Journal of Intelligent Manufacturing  
doi:10.1007/bf00124835 fatcat:zeq3enf7mbgs3mtk34cfnltodq

Application of Tensor Factorisation to Analyse Similarities in CAD Assembly Models

Flavien Boussuge, Christopher M. Tierney, Trevor T. Robinson, Cecil G. Armstrong
2020 Zenodo  
Generating fit-for-purpose CAD models from complex assemblies is time consuming for analysts.  ...  In this paper a new approach to help engineers analyse the consistency of CAD assembly models is proposed.  ...  The authors acknowledge Rolls-Royce Plc for granting permission to publish this paper and for providing the Vesta aeroengine use-case.  ... 
doi:10.5281/zenodo.3653355 fatcat:xxvfaxpu6vbltn5xxnvuohdzym

Thickness and clearance visualization based on distance field of 3D objects

Masatomo Inui, Nobuyuki Umezu, Kazuma Wakasaki, Shunsuke Sato
2015 Journal of Computational Design and Engineering  
The distance between a voxel and the surface polygons of the model is computed many times in the distance field construction.  ...  Similar sets of polygons are usually selected as close polygons for close voxels.  ...  distance between the point and the medial axis.  ... 
doi:10.1016/j.jcde.2015.04.001 fatcat:ltqhks4birbi7dspzukwajqede

Particle systems for adaptive, isotropic meshing of CAD models

Jonathan R. Bronson, Joshua A. Levine, Ross T. Whitaker
2012 Engineering with Computers  
We present a particle-based approach for generating adaptive triangular surface and tetrahedral volume meshes from CAD models.  ...  Our approach uses a hierarchical sampling scheme that places particles on features in order of increasing dimensionality.  ...  We would also like to thank Bob Haimes for the valuable discussions on CAD modeling and mesh generation.  ... 
doi:10.1007/s00366-012-0266-x pmid:23162181 pmcid:PMC3499137 fatcat:6d2vgo5u3vgdpgd6v6bc2lpzuq

Particle Systems for Adaptive, Isotropic Meshing of CAD Models [chapter]

Jonathan R. Bronson, Joshua A. Levine, Ross T. Whitaker
2010 Proceedings of the 19th International Meshing Roundtable  
We present a particle-based approach for generating adaptive triangular surface and tetrahedral volume meshes from CAD models.  ...  Our approach uses a hierarchical sampling scheme that places particles on features in order of increasing dimensionality.  ...  We would also like to thank Bob Haimes for the valuable discussions on CAD modeling and mesh generation.  ... 
doi:10.1007/978-3-642-15414-0_17 dblp:conf/imr/BronsonLW10 fatcat:r6ozb3jwy5bf5nn4yuy6daolqi

Calculating the medial axis of a CAD model by multi-CPU based parallel computation

Housheng Zhu, Yusheng Liu, Jianjun Zhao, Hongwei Wang
2015 Advances in Engineering Software  
Computational efficiency is still a great challenge for the generation of the Medial Axis (MA) for complicated CAD models. Current research mainly focuses on CPU-based MA generation methods.  ...  In this study, a parallel method based on multi-CPU is proposed for the efficient MA generation of CAD models using distance dilation.  ...  Introduction The concept of Medial Axis (MA) was first introduced by Blum [1] as a tool for efficient 2D shape description, which has also been extended later on for the description of 3D models.  ... 
doi:10.1016/j.advengsoft.2015.03.004 fatcat:anz5fe6htrd4lijnylmhl6tpdy

Three-dimensional shape searching: state-of-the-art review and future trends

Natraj Iyer, Subramaniam Jayanti, Kuiyang Lou, Yagnanarayanan Kalyanaraman, Karthik Ramani
2005 Computer-Aided Design  
A brief description of each technique is provided followed by a detailed survey of the state-of-the-art.  ...  Most techniques have been developed for a particular domain and reduce a shape into a simpler shape representation.  ...  A skeleton in 2D is the medial axis, while in 3D it is the medial surface.  ... 
doi:10.1016/j.cad.2004.07.002 fatcat:2q5ltmci6ngufgpt76bcldrobq

Computational Anatomy for Multi-Organ Analysis in Medical Imaging: A Review [article]

Juan J. Cerrolaza, Mirella Lopez-Picazo, Ludovic Humbert, Yoshinobu Sato, Daniel Rueckert, Miguel Angel Gonzalez Ballester, Marius George Linguraru
2018 arXiv   pre-print
Over the years, the strategies 25 proposed to efficiently model multi-organ structures have evolved from the simple global modeling, to more sophisticated approaches such as sequential, hierarchical, or  ...  The manuscript follows a methodology-based classification of the different techniques 30 available for the analysis of multi-organs and multi-anatomical structures, from techniques using point distribution  ...  Acknowledgements This paper was supported in part by the Marie Skodoska-Curie Actions of the UE Framework Program for Research and Innovation, under REA grant agreement 706372.  ... 
arXiv:1812.08577v1 fatcat:xjw2g25pxfftpnduss6d5sggzu

A haptic system for virtual prototyping of polygonal models

David E. Johnson, Peter Willemsen, Elaine Cohen
2005 ACM SIGGRAPH 2005 Courses on - SIGGRAPH '05  
Virtual prototyping attempts to replace physical models with virtual models for the purpose of design evaluation.  ...  The system can handle models and environments with hundreds of thousands of triangles, and augments innate human talents at searching for collision-free paths.  ...  In general, the LMDs tend to approximate the local distance field between the models, and the forces tend to push the moving model towards the medial axis between the models.  ... 
doi:10.1145/1198555.1198608 dblp:conf/siggraph/JohnsonWC05 fatcat:oanagw2sibd3tobwncijj4t42i

Curve-Skeleton Properties, Applications, and Algorithms

Nicu D. Cornea, Deborah Silver, Patrick Min
2007 IEEE Transactions on Visualization and Computer Graphics  
Curve-skeletons are thinned 1D representations of 3D objects useful for many visualization tasks including virtual navigation, reduced-model formulation, visualization improvement, animation, etc.  ...  There are many algorithms in the literature describing extraction methodologies for different applications; however, it is unclear how general and robust they are.  ...  The source code and all models used in the experimental section can be downloaded from [139].  ... 
doi:10.1109/tvcg.2007.1002 pmid:17356219 fatcat:5fjr5p4jofcwplq2fksu5nb5z4
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