Biomesh3D - Demo. Darrell Swenson, Joshua Levine, Jess Tate, Ross Whitaker, Rob MacLeod

Size: px
Start display at page:

Download "Biomesh3D - Demo. Darrell Swenson, Joshua Levine, Jess Tate, Ross Whitaker, Rob MacLeod"

Transcription

1 Biomesh3D - Demo Darrell Swenson, Joshua Levine, Jess Tate, Ross Whitaker, Rob MacLeod University of Utah Department of Biomedical Engineering Scientific Computing and Imaging Institute

2 When To Use BM3D Meshing Image Based Meshing

3 When To Use BM3D Meshing Image Based Meshing High Low Complexity Quality High Low

4 When To Use BM3D Meshing Image Based Meshing High Visualization Low Complexity Quality FEA High Low

5 When To Use BM3D Meshing Image Based Meshing High Complex Shapes Visualization Low Complexity Quality FEA High Simple Shapes Low

6 When To Use BM3D Meshing Image Based Meshing High Complex Shapes Visualization Low Complexity BM3D Quality FEA High Simple Shapes Low

7 Biomesh3D Segmentation Tetrahedral Mesh

8 Biomesh3D Segmentation Tetrahedral Mesh

9 Steps of BM3D 1. Preprocess Segmentation 2. Tighten or smooth 3. Medial Axis 4. Sizing Field 5. Seed Surface 6. Particle System 7. Generate Surfaces 8. Generate Volume Mesh

10 Steps of BM3D 1. Preprocess Segmentation 2. Tighten or smooth Reads a.nrrd from Seg3D Each Label is a different material 3. Medial Axis 4. Sizing Field 5. Seed Surface 6. Particle System 7. Generate Surfaces 8. Generate Volume Mesh

11 Steps of BM3D 1. Preprocess Segmentation Curvature limiting geometric simplification 2. Tighten or smooth 3. Medial Axis 4. Sizing Field 5. Seed Surface 6. Particle System 7. Generate Surfaces 8. Generate Volume Mesh A. Chica, J. Williams, et. al. Pressing: Smooth isosurfaces with flats from binary grids. Computer Graphics Forum 27(1), J. Williams. Relative convexity and the medial cover. Fall Workshop on Computational Geometry, 2008.

12 Steps of BM3D 1. Preprocess Segmentation 2. Tighten or smooth Identifies corners and thin features 3. Medial Axis 4. Sizing Field 5. Seed Surface 6. Particle System 7. Generate Surfaces 8. Generate Volume Mesh By Pblanke (Own work) [Public domain], via Wikimedia Commons

13 Steps of BM3D 1. Preprocess Segmentation 2. Tighten or smooth 3. Medial Axis 4. Sizing Field 5. Seed Surface 6. Particle System 7. Generate Surfaces 8. Generate Volume Mesh

14 Steps of BM3D 1. Preprocess Segmentation 2. Tighten or smooth 3. Medial Axis 4. Sizing Field 5. Seed Surface 6. Particle System 7. Generate Surfaces 8. Generate Volume Mesh

15 Steps of BM3D 1. Preprocess Segmentation 2. Tighten or smooth 3. Medial Axis 4. Sizing Field 5. Seed Surface 6. Particle System 7. Generate Surfaces 8. Generate Volume Mesh

16 Steps of BM3D 1. Preprocess Segmentation 2. Tighten or smooth 3. Medial Axis 4. Sizing Field 5. Seed Surface 6. Particle System 7. Generate Surfaces 8. Generate Volume Mesh

17 Steps of BM3D 1. Preprocess Segmentation 2. Tighten or smooth Tetgen for volume meshing 3. Medial Axis 4. Sizing Field 5. Seed Surface 6. Particle System 7. Generate Surfaces 8. Generate Volume Mesh

18 model_config.py

19 model_config.py

20 model_config.py

21 model_config.py

22 model_config.py Smoothing Step - may lose thin structures

23 model_config.py More refinement for thin structures

24 model_config.py

25 model_config.py Cap the sizing field Higher number less resolution

26 model_config.py Volume Meshing Parameters

27 model_config.py More iterations for better distribution

28 Client/Server

29 Mesh Configuration

30 Visualizing Stages

31 Demo

32 Meshing In Biology

33 Meshing In Biology

34 Meshing In Biology

35 Meshing In Biology

36 Meshing In Biology

37 Meshing In Biology

38 Meshing In Biology

39 Meshing In Biology

40 Meshing In Biology

41 Meshing In Biology

42 Meshing In Biology

43 Meshing In Biology

44 Meshing In Biology

45 Meshing In Biology Biomesh3D CGAL DelPSC

46 Non-Conformal vs Conformal Non-conformal Conformal A B Boundary Boundary

47 Replicated Non-Conformal vs Conformal Boundary Non-conformal Conformal A B Boundary Boundary

Meshing Pipeline User Guide

Meshing Pipeline User Guide Meshing Pipeline User Guide BioMesh3D 0.1 Documentation Center for Integrative Biomedical Computing Scientific Computing & Imaging Institute University of Utah Software download: http://software.sci.utah.edu

More information

Cleaver Lab Walkthrough

Cleaver Lab Walkthrough Cleaver Lab Walkthrough Cleaver 2.0 Beta Documentation Center for Integrative Biomedical Computing Scientific Computing & Imaging Institute University of Utah Cleaver software download: http://software.sci.utah.edu

More information

Hexahedral Mesh Generation for Volumetric Image Data

Hexahedral Mesh Generation for Volumetric Image Data Hexahedral Mesh Generation for Volumetric Image Data Jason Shepherd University of Utah March 27, 2006 Outline Hexahedral Constraints Topology Boundary Quality Zhang et al. papers Smoothing/Quality Existing

More information

SOLIDWORKS Simulation

SOLIDWORKS Simulation SOLIDWORKS Simulation Length: 3 days Prerequisite: SOLIDWORKS Essentials Description: SOLIDWORKS Simulation is designed to make SOLIDWORKS users more productive with the SOLIDWORKS Simulation Bundle. This

More information

SCIRun Lab Walkthrough

SCIRun Lab Walkthrough SCIRun Lab Walkthrough SCIRun 4.5 Documentation Center for Integrative Biomedical Computing Scientific Computing & Imaging Institute University of Utah SCIRun software download: http://software.sci.utah.edu

More information

A Meshing Pipeline for Biomedical Computing

A Meshing Pipeline for Biomedical Computing A Meshing Pipeline for Biomedical Computing Michael Callahan 1, Martin J. Cole 1, Jason F. Shepherd 1, Jeroen G. Stinstra 1, and Chris R. Johnson 1 Scientific Computing and Imaging Institute, University

More information

Seg3D Lab Walkthrough

Seg3D Lab Walkthrough Seg3D Lab Walkthrough Seg3D 2.1 Documentation Center for Integrative Biomedical Computing Scientific Computing & Imaging Institute University of Utah Seg3D software download: http://software.sci.utah.edu

More information

Seg3D Lab Walkthrough

Seg3D Lab Walkthrough Seg3D Lab Walkthrough Seg3D 2.1 Documentation Center for Integrative Biomedical Computing Scientific Computing & Imaging Institute University of Utah Seg3D software download: http://software.sci.utah.edu

More information

Introduction to ANSYS Meshing. Workshop plan

Introduction to ANSYS Meshing. Workshop plan Lecture 2 Introduction to ANSYS Meshing 2014 W2-1 Schedule WEiP Workshop plan Week 1 - Quick start in ANSYS Week 2 Geometry DesignModeler (DM) Week 3 Mesh Meshing Week 4 Solver FLUENT/CFX Week 5 - Post

More information

APPLICATION OF ALGORITHMS FOR AUTOMATIC GENERATION OF HEXAHEDRAL FINITE ELEMENT MESHES

APPLICATION OF ALGORITHMS FOR AUTOMATIC GENERATION OF HEXAHEDRAL FINITE ELEMENT MESHES MESTRADO EM ENGENHARIA MECÂNICA November 2014 APPLICATION OF ALGORITHMS FOR AUTOMATIC GENERATION OF HEXAHEDRAL FINITE ELEMENT MESHES Luís Miguel Rodrigues Reis Abstract. The accuracy of a finite element

More information

An Efficient, Geometric Multigrid Solver for the Anisotropic Diffusion Equation in Two and Three Dimensions

An Efficient, Geometric Multigrid Solver for the Anisotropic Diffusion Equation in Two and Three Dimensions 1 n Efficient, Geometric Multigrid Solver for the nisotropic Diffusion Equation in Two and Three Dimensions Tolga Tasdizen, Ross Whitaker UUSCI-2004-002 Scientific Computing and Imaging Institute University

More information

Abaqus/CAE Heat Transfer Tutorial

Abaqus/CAE Heat Transfer Tutorial Abaqus/CAE Heat Transfer Tutorial Problem Description The thin L shaped steel part shown above (lengths in meters) is exposed to a temperature of 20 o C on the two surfaces of the inner corner, and 120

More information

3D Modeling techniques

3D Modeling techniques 3D Modeling techniques 0. Reconstruction From real data (not covered) 1. Procedural modeling Automatic modeling of a self-similar objects or scenes 2. Interactive modeling Provide tools to computer artists

More information

Introduction to ANSYS DesignModeler

Introduction to ANSYS DesignModeler Lecture 5 Modeling 14. 5 Release Introduction to ANSYS DesignModeler 2012 ANSYS, Inc. November 20, 2012 1 Release 14.5 Preprocessing Workflow Geometry Creation OR Geometry Import Geometry Operations Meshing

More information

10.1 Overview. Section 10.1: Overview. Section 10.2: Procedure for Generating Prisms. Section 10.3: Prism Meshing Options

10.1 Overview. Section 10.1: Overview. Section 10.2: Procedure for Generating Prisms. Section 10.3: Prism Meshing Options Chapter 10. Generating Prisms This chapter describes the automatic and manual procedure for creating prisms in TGrid. It also discusses the solution to some common problems that you may face while creating

More information

11/1/13. Visualization. Scientific Visualization. Types of Data. Height Field. Contour Curves. Meshes

11/1/13. Visualization. Scientific Visualization. Types of Data. Height Field. Contour Curves. Meshes CSCI 420 Computer Graphics Lecture 26 Visualization Height Fields and Contours Scalar Fields Volume Rendering Vector Fields [Angel Ch. 2.11] Jernej Barbic University of Southern California Scientific Visualization

More information

Visualization. CSCI 420 Computer Graphics Lecture 26

Visualization. CSCI 420 Computer Graphics Lecture 26 CSCI 420 Computer Graphics Lecture 26 Visualization Height Fields and Contours Scalar Fields Volume Rendering Vector Fields [Angel Ch. 11] Jernej Barbic University of Southern California 1 Scientific Visualization

More information

Digital Image Processing Fundamentals

Digital Image Processing Fundamentals Ioannis Pitas Digital Image Processing Fundamentals Chapter 7 Shape Description Answers to the Chapter Questions Thessaloniki 1998 Chapter 7: Shape description 7.1 Introduction 1. Why is invariance to

More information

Mesh Processing Pipeline

Mesh Processing Pipeline Mesh Smoothing 1 Mesh Processing Pipeline... Scan Reconstruct Clean Remesh 2 Mesh Quality Visual inspection of sensitive attributes Specular shading Flat Shading Gouraud Shading Phong Shading 3 Mesh Quality

More information

Workshop 3: Cutcell Mesh Generation. Introduction to ANSYS Fluent Meshing Release. Release ANSYS, Inc.

Workshop 3: Cutcell Mesh Generation. Introduction to ANSYS Fluent Meshing Release. Release ANSYS, Inc. Workshop 3: Cutcell Mesh Generation 14.5 Release Introduction to ANSYS Fluent Meshing 1 2011 ANSYS, Inc. December 21, 2012 I Introduction Workshop Description: CutCell meshing is a general purpose meshing

More information

Mesh Generation for Aircraft Engines based on the Medial Axis

Mesh Generation for Aircraft Engines based on the Medial Axis Mesh Generation for Aircraft Engines based on the Medial Axis J. Barner, F. Buchegger,, D. Großmann, B. Jüttler Institute of Applied Geometry Johannes Kepler University, Linz, Austria MTU Aero Engines

More information

Best Practices Workshop: Parts & Mesh-Based Operations

Best Practices Workshop: Parts & Mesh-Based Operations Best Practices Workshop: Parts & Mesh-Based Operations Overview What are Parts and Mesh Based Operations? Transition from Region Based Meshing Why move to Parts Based Meshing How to use Parts Based Mesh

More information

Lecture 2 Unstructured Mesh Generation

Lecture 2 Unstructured Mesh Generation Lecture 2 Unstructured Mesh Generation MIT 16.930 Advanced Topics in Numerical Methods for Partial Differential Equations Per-Olof Persson (persson@mit.edu) February 13, 2006 1 Mesh Generation Given a

More information

Mesh segmentation. Florent Lafarge Inria Sophia Antipolis - Mediterranee

Mesh segmentation. Florent Lafarge Inria Sophia Antipolis - Mediterranee Mesh segmentation Florent Lafarge Inria Sophia Antipolis - Mediterranee Outline What is mesh segmentation? M = {V,E,F} is a mesh S is either V, E or F (usually F) A Segmentation is a set of sub-meshes

More information

Physically-Based Modeling and Animation. University of Missouri at Columbia

Physically-Based Modeling and Animation. University of Missouri at Columbia Overview of Geometric Modeling Overview 3D Shape Primitives: Points Vertices. Curves Lines, polylines, curves. Surfaces Triangle meshes, splines, subdivision surfaces, implicit surfaces, particles. Solids

More information

13.472J/1.128J/2.158J/16.940J COMPUTATIONAL GEOMETRY

13.472J/1.128J/2.158J/16.940J COMPUTATIONAL GEOMETRY 13.472J/1.128J/2.158J/16.940J COMPUTATIONAL GEOMETRY Lecture 23 Dr. W. Cho Prof. N. M. Patrikalakis Copyright c 2003 Massachusetts Institute of Technology Contents 23 F.E. and B.E. Meshing Algorithms 2

More information

Best Practices: Volume Meshing Kynan Maley

Best Practices: Volume Meshing Kynan Maley Best Practices: Volume Meshing Kynan Maley Volume Meshing Volume meshing is the basic tool that allows the creation of the space discretization needed to solve most of the CAE equations for: CFD Stress

More information

Möbius Transformations in Scientific Computing. David Eppstein

Möbius Transformations in Scientific Computing. David Eppstein Möbius Transformations in Scientific Computing David Eppstein Univ. of California, Irvine School of Information and Computer Science (including joint work with Marshall Bern from WADS 01 and SODA 03) Outline

More information

Visualization Computer Graphics I Lecture 20

Visualization Computer Graphics I Lecture 20 15-462 Computer Graphics I Lecture 20 Visualization Height Fields and Contours Scalar Fields Volume Rendering Vector Fields [Angel Ch. 12] November 20, 2003 Doug James Carnegie Mellon University http://www.cs.cmu.edu/~djames/15-462/fall03

More information

Structured Grid Generation for Turbo Machinery Applications using Topology Templates

Structured Grid Generation for Turbo Machinery Applications using Topology Templates Structured Grid Generation for Turbo Machinery Applications using Topology Templates January 13th 2011 Martin Spel martin.spel@rtech.fr page 1 Agenda: R.Tech activities Grid Generation Techniques Structured

More information

Geometric Modeling and Processing

Geometric Modeling and Processing Geometric Modeling and Processing Tutorial of 3DIM&PVT 2011 (Hangzhou, China) May 16, 2011 6. Mesh Simplification Problems High resolution meshes becoming increasingly available 3D active scanners Computer

More information

Alex Li 11/20/2009. Chris Wojtan, Nils Thurey, Markus Gross, Greg Turk

Alex Li 11/20/2009. Chris Wojtan, Nils Thurey, Markus Gross, Greg Turk Alex Li 11/20/2009 Chris Wojtan, Nils Thurey, Markus Gross, Greg Turk duction Overview of Lagrangian of Topological s Altering the Topology 2 Presents a method for accurately tracking the moving surface

More information

Solid Conduction Tutorial

Solid Conduction Tutorial SECTION 1 1 SECTION 1 The following is a list of files that will be needed for this tutorial. They can be found in the Solid_Conduction folder. Exhaust-hanger.tdf Exhaust-hanger.ntl 1.0.1 Overview The

More information

Applications* X3D Moving Grid Methods for Semiconductor INTRODUCTION ANDREW KUPRAT *, DAVID CARTWRIGHT, J. TINKA GAMMEL,

Applications* X3D Moving Grid Methods for Semiconductor INTRODUCTION ANDREW KUPRAT *, DAVID CARTWRIGHT, J. TINKA GAMMEL, VLSI DESIGN 1998, Vol. 8, Nos. (1-4), pp. 117-121 Reprints available directly from the publisher Photocopying permitted by license only (C) 1998 OPA (Overseas Publishers Association) N.V. Published by

More information

Unstructured Mesh Generation for Implicit Moving Geometries and Level Set Applications

Unstructured Mesh Generation for Implicit Moving Geometries and Level Set Applications Unstructured Mesh Generation for Implicit Moving Geometries and Level Set Applications Per-Olof Persson (persson@mit.edu) Department of Mathematics Massachusetts Institute of Technology http://www.mit.edu/

More information

Abaqus/CAE Axisymmetric Tutorial (Version 2016)

Abaqus/CAE Axisymmetric Tutorial (Version 2016) Abaqus/CAE Axisymmetric Tutorial (Version 2016) Problem Description A round bar with tapered diameter has a total load of 1000 N applied to its top face. The bottom of the bar is completely fixed. Determine

More information

Geometric Modeling in Graphics

Geometric Modeling in Graphics Geometric Modeling in Graphics Part 10: Surface reconstruction Martin Samuelčík www.sccg.sk/~samuelcik samuelcik@sccg.sk Curve, surface reconstruction Finding compact connected orientable 2-manifold surface

More information

ANSYS Workbench Guide

ANSYS Workbench Guide ANSYS Workbench Guide Introduction This document serves as a step-by-step guide for conducting a Finite Element Analysis (FEA) using ANSYS Workbench. It will cover the use of the simulation package through

More information

Modeling and Analyzing 3D Shapes using Clues from 2D Images. Minglun Gong Dept. of CS, Memorial Univ.

Modeling and Analyzing 3D Shapes using Clues from 2D Images. Minglun Gong Dept. of CS, Memorial Univ. Modeling and Analyzing 3D Shapes using Clues from 2D Images Minglun Gong Dept. of CS, Memorial Univ. Modeling Flowers from Images Reconstructing 3D flower petal shapes from a single image is difficult

More information

Overcoming Data Translation Issues Using SimDesigner Enterprise Gateway

Overcoming Data Translation Issues Using SimDesigner Enterprise Gateway Overcoming Data Translation Issues Using SimDesigner Enterprise Gateway Van N. Eidom Engineer Specialist Aircraft Braking Systems Corporation Introduction This presentation demonstrates how the SimDesigner

More information

Joint Advanced Student School 2007 Martin Dummer

Joint Advanced Student School 2007 Martin Dummer Sierpiński-Curves Joint Advanced Student School 2007 Martin Dummer Statement of the Problem What is the best way to store a triangle mesh efficiently in memory? The following points are desired : Easy

More information

The General Purpose Parameter Based Two Dimensional Mesh Generator

The General Purpose Parameter Based Two Dimensional Mesh Generator The General Purpose Parameter Based Two Dimensional Mesh Generator Abstract Sivamayam Sivasuthan Department of Electrical and Computer Engineering Michigan State University East Lansing, MI 48824, USA

More information

Watertight Planar Surface Reconstruction of Voxel Data

Watertight Planar Surface Reconstruction of Voxel Data Watertight Planar Surface Reconstruction of Voxel Data Eric Turner CS 284 Final Project Report December 13, 2012 1. Introduction There are many scenarios where a 3D shape is represented by a voxel occupancy

More information

ANSYS AIM Tutorial Stepped Shaft in Axial Tension

ANSYS AIM Tutorial Stepped Shaft in Axial Tension ANSYS AIM Tutorial Stepped Shaft in Axial Tension Author(s): Sebastian Vecchi, ANSYS Created using ANSYS AIM 18.1 Contents: Problem Specification 3 Learning Goals 4 Pre-Analysis & Start Up 5 Calculation

More information

Reflection & Mirrors

Reflection & Mirrors Reflection & Mirrors Geometric Optics Using a Ray Approximation Light travels in a straight-line path in a homogeneous medium until it encounters a boundary between two different media A ray of light is

More information

Hexahedral Meshing of Non-Linear Volumes Using Voronoi Faces and Edges

Hexahedral Meshing of Non-Linear Volumes Using Voronoi Faces and Edges Hexahedral Meshing of Non-Linear Volumes Using Voronoi Faces and Edges Alla Sheffer and Michel Bercovier Institute of Computer Science, The Hebrew University, Jerusalem 91904, Israel. sheffa berco @cs.huji.ac.il.

More information

Shrinkwrap developments for computational electromagnetics in ICE NITe

Shrinkwrap developments for computational electromagnetics in ICE NITe Shrinkwrap developments for computational electromagnetics in ICE NITe Preparing CAD models for electromagnetic analysis remains a complex, time consuming process. Typically, the CAD model will contain

More information

Recent Advances in MSC/PATRAN Pre-Processing Software Allows Modeling of Complex Automotive Lamp Designs

Recent Advances in MSC/PATRAN Pre-Processing Software Allows Modeling of Complex Automotive Lamp Designs Recent Advances in MSC/PATRAN Pre-Processing Software Allows Modeling of Complex Automotive Lamp Designs William I. Moore, Eric S. Donovan and Christopher R. Powers Delphi Interior and Lighting Systems

More information

Shape modeling Modeling technique Shape representation! 3D Graphics Modeling Techniques

Shape modeling Modeling technique Shape representation! 3D Graphics   Modeling Techniques D Graphics http://chamilo2.grenet.fr/inp/courses/ensimag4mmgd6/ Shape Modeling technique Shape representation! Part : Basic techniques. Projective rendering pipeline 2. Procedural Modeling techniques Shape

More information

Optics II. Reflection and Mirrors

Optics II. Reflection and Mirrors Optics II Reflection and Mirrors Geometric Optics Using a Ray Approximation Light travels in a straight-line path in a homogeneous medium until it encounters a boundary between two different media The

More information

Chapter 11 Representation & Description

Chapter 11 Representation & Description Chain Codes Chain codes are used to represent a boundary by a connected sequence of straight-line segments of specified length and direction. The direction of each segment is coded by using a numbering

More information

Element Order: Element order refers to the interpolation of an element s nodal results to the interior of the element. This determines how results can

Element Order: Element order refers to the interpolation of an element s nodal results to the interior of the element. This determines how results can TIPS www.ansys.belcan.com 鲁班人 (http://www.lubanren.com/weblog/) Picking an Element Type For Structural Analysis: by Paul Dufour Picking an element type from the large library of elements in ANSYS can be

More information

Lecture Outline Chapter 26. Physics, 4 th Edition James S. Walker. Copyright 2010 Pearson Education, Inc.

Lecture Outline Chapter 26. Physics, 4 th Edition James S. Walker. Copyright 2010 Pearson Education, Inc. Lecture Outline Chapter 26 Physics, 4 th Edition James S. Walker Chapter 26 Geometrical Optics Units of Chapter 26 The Reflection of Light Forming Images with a Plane Mirror Spherical Mirrors Ray Tracing

More information

Introduction to ANSYS FLUENT Meshing

Introduction to ANSYS FLUENT Meshing Workshop 02 Volume Fill Methods Introduction to ANSYS FLUENT Meshing 1 2011 ANSYS, Inc. December 21, 2012 I Introduction Workshop Description: Mesh files will be read into the Fluent Meshing software ready

More information

Viscous Hybrid Mesh Generation

Viscous Hybrid Mesh Generation Tutorial 4. Viscous Hybrid Mesh Generation Introduction In cases where you want to resolve the boundary layer, it is often more efficient to use prismatic cells in the boundary layer rather than tetrahedral

More information

What is visualization? Why is it important?

What is visualization? Why is it important? What is visualization? Why is it important? What does visualization do? What is the difference between scientific data and information data Cycle of Visualization Storage De noising/filtering Down sampling

More information

EN 10211:2007 validation of Therm 6.3. Therm 6.3 validation according to EN ISO 10211:2007

EN 10211:2007 validation of Therm 6.3. Therm 6.3 validation according to EN ISO 10211:2007 Therm 6.3 validation according to EN ISO 10211:2007 Therm 6.3 validation according to NBN EN ISO 10211:2007 eneral considerations and requirements for validation of calculation methods according to NBN

More information

Section 8.3: Examining and Repairing the Input Geometry. Section 8.5: Examining the Cartesian Grid for Leakages

Section 8.3: Examining and Repairing the Input Geometry. Section 8.5: Examining the Cartesian Grid for Leakages Chapter 8. Wrapping Boundaries TGrid allows you to create a good quality boundary mesh using a bad quality surface mesh as input. This can be done using the wrapper utility in TGrid. The following sections

More information

Computational QC Geometry: A tool for Medical Morphometry, Computer Graphics & Vision

Computational QC Geometry: A tool for Medical Morphometry, Computer Graphics & Vision Computational QC Geometry: A tool for Medical Morphometry, Computer Graphics & Vision Part II of the sequel of 2 talks. Computation C/QC geometry was presented by Tony F. Chan Ronald Lok Ming Lui Department

More information

CGAL. Mesh Simplification. (Slides from Tom Funkhouser, Adam Finkelstein)

CGAL. Mesh Simplification. (Slides from Tom Funkhouser, Adam Finkelstein) CGAL Mesh Simplification (Slides from Tom Funkhouser, Adam Finkelstein) Siddhartha Chaudhuri http://www.cse.iitb.ac.in/~cs749 In a nutshell Problem: Meshes have too many polygons for storage, rendering,

More information

Visualization Computer Graphics I Lecture 20

Visualization Computer Graphics I Lecture 20 15-462 Computer Graphics I Lecture 20 Visualization Height Fields and Contours Scalar Fields Volume Rendering Vector Fields [Angel Ch. 12] April 15, 2003 Frank Pfenning Carnegie Mellon University http://www.cs.cmu.edu/~fp/courses/graphics/

More information

Mesh Simplification. Mesh Simplification. Mesh Simplification Goals. Mesh Simplification Motivation. Vertex Clustering. Mesh Simplification Overview

Mesh Simplification. Mesh Simplification. Mesh Simplification Goals. Mesh Simplification Motivation. Vertex Clustering. Mesh Simplification Overview Mesh Simplification Mesh Simplification Adam Finkelstein Princeton University COS 56, Fall 008 Slides from: Funkhouser Division, Viewpoint, Cohen Mesh Simplification Motivation Interactive visualization

More information

Height Fields and Contours Scalar Fields Volume Rendering Vector Fields [Angel Ch. 12] April 23, 2002 Frank Pfenning Carnegie Mellon University

Height Fields and Contours Scalar Fields Volume Rendering Vector Fields [Angel Ch. 12] April 23, 2002 Frank Pfenning Carnegie Mellon University 15-462 Computer Graphics I Lecture 21 Visualization Height Fields and Contours Scalar Fields Volume Rendering Vector Fields [Angel Ch. 12] April 23, 2002 Frank Pfenning Carnegie Mellon University http://www.cs.cmu.edu/~fp/courses/graphics/

More information

Parallel Computation of Spherical Parameterizations for Mesh Analysis. Th. Athanasiadis and I. Fudos University of Ioannina, Greece

Parallel Computation of Spherical Parameterizations for Mesh Analysis. Th. Athanasiadis and I. Fudos University of Ioannina, Greece Parallel Computation of Spherical Parameterizations for Mesh Analysis Th. Athanasiadis and I. Fudos, Greece Introduction Mesh parameterization is a powerful geometry processing tool Applications Remeshing

More information

Dual Marching Cubes. Gregory M. Nielson. Arizona State University

Dual Marching Cubes. Gregory M. Nielson. Arizona State University Dual Marching Cubes Gregory M. Nielson Arizona State University Figure 1. March Cubes Surface MC-Patch surface, S MC-Dual surface, S. ABSTRACT We present the definition and computational algorithms for

More information

A Work-Efficient GPU Algorithm for Level Set Segmentation. Mike Roberts Jeff Packer Mario Costa Sousa Joseph Ross Mitchell

A Work-Efficient GPU Algorithm for Level Set Segmentation. Mike Roberts Jeff Packer Mario Costa Sousa Joseph Ross Mitchell A Work-Efficient GPU Algorithm for Level Set Segmentation Mike Roberts Jeff Packer Mario Costa Sousa Joseph Ross Mitchell What do I mean by work-efficient? If a parallel algorithm performs asymptotically

More information

Lecture 7: Mesh Quality & Advanced Topics. Introduction to ANSYS Meshing Release ANSYS, Inc. February 12, 2015

Lecture 7: Mesh Quality & Advanced Topics. Introduction to ANSYS Meshing Release ANSYS, Inc. February 12, 2015 Lecture 7: Mesh Quality & Advanced Topics 15.0 Release Introduction to ANSYS Meshing 1 2015 ANSYS, Inc. February 12, 2015 Overview In this lecture we will learn: Impact of the Mesh Quality on the Solution

More information

Level Set Method in a Finite Element Setting

Level Set Method in a Finite Element Setting Level Set Method in a Finite Element Setting John Shopple University of California, San Diego November 6, 2007 Outline 1 Level Set Method 2 Solute-Solvent Model 3 Reinitialization 4 Conclusion Types of

More information

Modelling Flat Spring Performance Using FEA

Modelling Flat Spring Performance Using FEA Modelling Flat Spring Performance Using FEA Blessing O Fatola, Patrick Keogh and Ben Hicks Department of Mechanical Engineering, University of Corresponding author bf223@bath.ac.uk Abstract. This paper

More information

Advanced Computer Graphics

Advanced Computer Graphics Advanced Computer Graphics Lecture 2: Modeling (1): Polygon Meshes Bernhard Jung TU-BAF, Summer 2007 Overview Computer Graphics Icon: Utah teapot Polygon Meshes Subdivision Polygon Mesh Optimization high-level:

More information

On a nested refinement of anisotropic tetrahedral grids under Hessian metrics

On a nested refinement of anisotropic tetrahedral grids under Hessian metrics On a nested refinement of anisotropic tetrahedral grids under Hessian metrics Shangyou Zhang Abstract Anisotropic grids, having drastically different grid sizes in different directions, are efficient and

More information

CHAPTER 7 SIMULATIONS OF EXPERIMENTAL WORK PERFORMED ON COMPOSITE SPECIMENS BY USING ANSYS

CHAPTER 7 SIMULATIONS OF EXPERIMENTAL WORK PERFORMED ON COMPOSITE SPECIMENS BY USING ANSYS 275 CHAPTER 7 SIMULATIONS OF EXPERIMENTAL WORK PERFORMED ON COMPOSITE SPECIMENS BY USING ANSYS 7.1 INTRODUCTION 275 7.2 EXPERIMENTAL CONFIGURATIONS 275 7.2.1 Tensile Test 275 7.2.2 Compression Test 278

More information

Overview of 3D Object Representations

Overview of 3D Object Representations Overview of 3D Object Representations Thomas Funkhouser Princeton University C0S 597D, Fall 2003 3D Object Representations What makes a good 3D object representation? Stanford and Hearn & Baker 1 3D Object

More information

Flow Visualization with Integral Surfaces

Flow Visualization with Integral Surfaces Flow Visualization with Integral Surfaces Visual and Interactive Computing Group Department of Computer Science Swansea University R.S.Laramee@swansea.ac.uk 1 1 Overview Flow Visualization with Integral

More information

Lecture 3 : General Preprocessing. Introduction to ANSYS Mechanical Release ANSYS, Inc. February 27, 2015

Lecture 3 : General Preprocessing. Introduction to ANSYS Mechanical Release ANSYS, Inc. February 27, 2015 Lecture 3 : General Preprocessing 16.0 Release Introduction to ANSYS Mechanical 1 2015 ANSYS, Inc. February 27, 2015 Chapter Overview In this chapter we cover basic preprocessing operations that are common

More information

Polygonal Meshes. Thomas Funkhouser Princeton University COS 526, Fall 2016

Polygonal Meshes. Thomas Funkhouser Princeton University COS 526, Fall 2016 Polygonal Meshes Thomas Funkhouser Princeton University COS 526, Fall 2016 Digital Geometry Processing Processing of 3D surfaces Creation, acquisition Storage, transmission Editing, animation, simulation

More information

Correctness. The Powercrust Algorithm for Surface Reconstruction. Correctness. Correctness. Delaunay Triangulation. Tools - Voronoi Diagram

Correctness. The Powercrust Algorithm for Surface Reconstruction. Correctness. Correctness. Delaunay Triangulation. Tools - Voronoi Diagram Correctness The Powercrust Algorithm for Surface Reconstruction Nina Amenta Sunghee Choi Ravi Kolluri University of Texas at Austin Boundary of a solid Close to original surface Homeomorphic to original

More information

CPSC 695. Geometric Algorithms in Biometrics. Dr. Marina L. Gavrilova

CPSC 695. Geometric Algorithms in Biometrics. Dr. Marina L. Gavrilova CPSC 695 Geometric Algorithms in Biometrics Dr. Marina L. Gavrilova Biometric goals Verify users Identify users Synthesis - recently Biometric identifiers Courtesy of Bromba GmbH Classification of identifiers

More information

Geometry of image formation

Geometry of image formation Geometry of image formation discussing here... mirrors definition of mirror types of mirrors aspects of plane mirror aspects of curved mirrors what is mirror? glass sheet with silvery / metallic coating

More information

Introduction to Scientific Visualization

Introduction to Scientific Visualization Introduction to Scientific Visualization Aaron Birkland Cornell Center for Advanced Computing Data Analysis on Ranger January 2012 A lab-intensive workshop Start off with basic concepts Data, transformations,

More information

Outline. Reconstruction of 3D Meshes from Point Clouds. Motivation. Problem Statement. Applications. Challenges

Outline. Reconstruction of 3D Meshes from Point Clouds. Motivation. Problem Statement. Applications. Challenges Reconstruction of 3D Meshes from Point Clouds Ming Zhang Patrick Min cs598b, Geometric Modeling for Computer Graphics Feb. 17, 2000 Outline - problem statement - motivation - applications - challenges

More information

Clipping. CSC 7443: Scientific Information Visualization

Clipping. CSC 7443: Scientific Information Visualization Clipping Clipping to See Inside Obscuring critical information contained in a volume data Contour displays show only exterior visible surfaces Isosurfaces can hide other isosurfaces Other displays can

More information

Computer Graphics I Lecture 11

Computer Graphics I Lecture 11 15-462 Computer Graphics I Lecture 11 Midterm Review Assignment 3 Movie Midterm Review Midterm Preview February 26, 2002 Frank Pfenning Carnegie Mellon University http://www.cs.cmu.edu/~fp/courses/graphics/

More information

Filtering Images in the Spatial Domain Chapter 3b G&W. Ross Whitaker (modified by Guido Gerig) School of Computing University of Utah

Filtering Images in the Spatial Domain Chapter 3b G&W. Ross Whitaker (modified by Guido Gerig) School of Computing University of Utah Filtering Images in the Spatial Domain Chapter 3b G&W Ross Whitaker (modified by Guido Gerig) School of Computing University of Utah 1 Overview Correlation and convolution Linear filtering Smoothing, kernels,

More information

Light: Geometric Optics

Light: Geometric Optics Light: Geometric Optics 23.1 The Ray Model of Light Light very often travels in straight lines. We represent light using rays, which are straight lines emanating from an object. This is an idealization,

More information

Incremental progress towards hexahedral mesh generation

Incremental progress towards hexahedral mesh generation Incremental progress towards hexahedral mesh generation Cecil G Armstrong c.armstrong@qub.ac.uk School of Mechanical and Aerospace Engineering, Queen s University of Belfast 2D mesh singularity points

More information

Mesh Generation of Large Size Industrial CFD Applications using a Cartesian Grid based Shrink Wrap approach

Mesh Generation of Large Size Industrial CFD Applications using a Cartesian Grid based Shrink Wrap approach Mesh Generation of Large Size Industrial CFD Applications using a Cartesian Grid based Shrink Wrap approach October 17, 2007 Tetrahedron II Erling Eklund, ANSYS Fluent France Y. K. Lee, ANSYS Inc., Evanston,

More information

Contouring and Isosurfaces. Ronald Peikert SciVis Contouring 2-1

Contouring and Isosurfaces. Ronald Peikert SciVis Contouring 2-1 Contouring and Isosurfaces Ronald Peikert SciVis 2007 - Contouring 2-1 What are contours? Set of points where the scalar field s has a given value c: Examples in 2D: height contours on maps isobars on

More information

Automatic & Robust Meshing in Fluids 2011 ANSYS Regional Conferences

Automatic & Robust Meshing in Fluids 2011 ANSYS Regional Conferences Automatic & Robust Meshing in Fluids 2011 ANSYS Regional Conferences 1 This is just a taste Note that full 14.0 update webinars of an hour per product will be scheduled closer to the release This presentation

More information

COMPUTER AIDED ENGINEERING. Part-1

COMPUTER AIDED ENGINEERING. Part-1 COMPUTER AIDED ENGINEERING Course no. 7962 Finite Element Modelling and Simulation Finite Element Modelling and Simulation Part-1 Modeling & Simulation System A system exists and operates in time and space.

More information

Shape Modeling with Point-Sampled Geometry

Shape Modeling with Point-Sampled Geometry Shape Modeling with Point-Sampled Geometry Mark Pauly Richard Keiser Leif Kobbelt Markus Gross ETH Zürich ETH Zürich RWTH Aachen ETH Zürich Motivation Surface representations Explicit surfaces (B-reps)

More information

Sculpting 3D Models. Glossary

Sculpting 3D Models. Glossary A Array An array clones copies of an object in a pattern, such as in rows and columns, or in a circle. Each object in an array can be transformed individually. Array Flyout Array flyout is available in

More information

Geometric Transformations and Image Warping

Geometric Transformations and Image Warping Geometric Transformations and Image Warping Ross Whitaker SCI Institute, School of Computing University of Utah Univ of Utah, CS6640 2009 1 Geometric Transformations Greyscale transformations -> operate

More information

Introduction to ANSYS Fluent Meshing

Introduction to ANSYS Fluent Meshing Workshop 06: Mesh Creation Including Removal of Gaps and Baffle Thickness 14.5 Release Introduction to ANSYS Fluent Meshing 1 2011 ANSYS, Inc. December 21, 2012 I Introduction Workshop Description: Fluent

More information

3. Preprocessing of ABAQUS/CAE

3. Preprocessing of ABAQUS/CAE 3.1 Create new model database 3. Preprocessing of ABAQUS/CAE A finite element analysis in ABAQUS/CAE starts from create new model database in the toolbar. Then save it with a name user defined. To build

More information

Basic LOgical Bulk Shapes (BLOBs) for Finite Element Hexahedral Mesh Generation

Basic LOgical Bulk Shapes (BLOBs) for Finite Element Hexahedral Mesh Generation Basic LOgical Bulk Shapes (BLOBs) for Finite Element Hexahedral Mesh Generation Shang-Sheng Liu and Rajit Gadh Department of Mechanical Engineering University of Wisconsin - Madison Madison, Wisconsin

More information

Finite Element Model

Finite Element Model LESSON 9 Finite Element Model Objectives: Build an initial surface mesh that will be used as a pattern to create the final 1, 2 and 3D mesh. Edit and smooth the mesh. Build a finite element model by sweeping

More information

Feature description. IE PŁ M. Strzelecki, P. Strumiłło

Feature description. IE PŁ M. Strzelecki, P. Strumiłło Feature description After an image has been segmented the detected region needs to be described (represented) in a form more suitable for further processing. Representation of an image region can be carried

More information

CDA Workshop Physical & Numerical Hydraulic Modelling. STAR-CCM+ Presentation

CDA Workshop Physical & Numerical Hydraulic Modelling. STAR-CCM+ Presentation CDA Workshop Physical & Numerical Hydraulic Modelling STAR-CCM+ Presentation ENGINEERING SIMULATION CFD FEA Mission Increase the competitiveness of companies through optimization of their product development

More information

Los Alamos National Laboratory

Los Alamos National Laboratory Los Alamos National Laboratory is operated by the University of California for the United States Department of Energy under contract W-7405-ENG-36 TITLE: AUTHOR(S). X3D MOVING GRID METHODS FOR SEMICONDUCTOR

More information