Interactive High Quality Trimmed NURBS Visualization Using Appearance Preserving Tessellation (English)

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Trimmed NURBS models are the standard representation used in CAD/CAM systems and accurate visualization of large trimmed NURBS models at interactive frame rates is of great interest for industry. To visualize the quality of a surface several techniques like isophotes, reflection lines, etc. are used. Most existing approaches transform the NURBS surfaces into a fine polygonal representation and build static levels of detail from this representation. This polygonal approximation together with its normals are adjusted in a semi-automatic procedure to achieve the desired visual fidelity during visualization. Since this approach allows only for a fixed maximum accuracy and does not support deformable models, another more recent approach is to keep the NURBS representation and generate view-dependent LODs on the fly up to the currently required preciseness. However, so far this approach took only into account the geometric error of an approximation and thus neglected the various illumination artifacts introduced by the chosen (possibly view-dependent) triangulation. Although this problem can be solved by using normal maps, the resolution of the normal maps again limits the accuracy. Furthermore, the normal map generation requires a preprocessing step which prevents the support of deformable NURBS models. In this paper we present a novel automatic tessellation algorithm that considers the illumination artifacts and is well suited both for the generation of static and dynamic LOD schemes with guaranteed visual fidelity. Our new method is also capable of high quality visualization of further attributes like curvature, temperature, etc. on surfaces with little or no modification.

Table of contents conference proceedings

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Illustrating Surfaces in Volume
Yuan, Xiaoru / Chen, Baoquan | 2004
A Cluster-Space Visual Interface for Arbitrary Dimensional Classification of Volume Data
Tzeng, Fan-Yin / Ma, Kwan-Liu | 2004
High-Quality Lighting and Efficient Pre-Integration for Volume Rendering
Lum, Eric B. / Wilson, Brett / Ma, Kwan-Liu | 2004
Interactively Visualizing Procedurally Encoded Scalar Fields
Jang, Yun / Weiler, Manfred / Hopf, Matthias / Huang, Jingshu / Ebert, David S. / Gaither, Kelly P. / Ertl, Thomas | 2004
TimeHistograms for Large, Time-Dependent Data
Kosara, Robert / Bendix, Fabian / Hauser, Helwig | 2004
Shape-Embedded-Histograms for Visual Data Mining
Amir, Amihood / Kashi, Reuven / Keim, Daniel A. / Netanyahu, Nathan S. / Wawryniuk, Markus | 2004
Graph Drawing by Subspace Optimization
Koren, Yehuda | 2004
Visual Triangulation of Network-Based Phylogenetic Trees
Brandes, U. / Dwyer, T. / Schreiber, F. | 2004
Texture-Based Flow Visualization on Isosurfaces from Computational Fluid Dynamics
Laramee, Robert S. / Schneider, Jürgen / Hauser, Helwig | 2004
Case Study: Visual Analysis of Complex, Time-Dependent Simulation Results of a Diesel Exhaust System
Doleisch, Helmut / Mayer, Michael / Gasser, Martin / Wanker, Roland / Hauser, Helwig | 2004
Visualising Organisms with Hydraulic Body Parts: A Case Study in Integrating Simulation and Visualisation Models
Breiner, T. / Dörner, R. / Seiler, C. / Gudo, M. | 2004
Visualization For Public-Resource Climate Modeling
Stainforth, D.A. / Frame, D. / Walton, J.P.R.B. | 2004
Case Study: Visualization of annotated DNA sequences
Peeters, Tim / Fiers, Mark / Wetering, Huub van de / Nap, Jan-Peter / Wijk, Jarke J. van | 2004
Accuracy Evaluation of Different Centerline Approximations of Blood Vessels
Cruz, A. La | 2004
Interactive TreemapsWith Detail on Demand to Support Information Search in Documents
Schlechtweg, Stefan / Schulze-Wollgast, Petra / Schumann, Heidrun | 2004
Visual Component Analysis
Müller, Wolfgang / Alexa, Marc | 2004
Interaction Spaces in Data and Information Visualization
Ward, M. / Yang, J. | 2004
Superquadric Tensor Glyphs
Kindlmann, Gordon | 2004
Surface Techniques for Vortex Visualization
Garth, Christoph / Tricoche, Xavier / Salzbrunn, Tobias / Bobach, Tom / Scheuermann, Gerik | 2004
Techniques for Visualizing Multi-Valued Flow Data
Urnessy, Timothy / Interrante, Victoria / Longmire, Ellen / Marusic, Ivan / Ganapathisubramani, Bharathram | 2004
DTI Visualization with Streamsurfaces and Evenly-Spaced Volume Seeding
Vilanova, A. / Berenschot, G. / Pul, C. van | 2004
Boundary Switch Connectors for Topological Visualization of Complex 3D Vector Fields
Weinkauf, T. / Theisel, H. / Hege, H.-C. / Seidel, H.-P. | 2004
Auralization I: Vortex Sound Synthesis
Shin, Youngin / Bajaj, Chandrajit | 2004
Ray Casting Curved-Quadratic Elements
Wiley, D. F. / Childs, H. R. / Hamann, B. / Joy, K. I. | 2004
Interactive High Quality Trimmed NURBS Visualization Using Appearance Preserving Tessellation
Guthe, M. / Balázs, Á. / Klein, R. | 2004
Generalized Distance Transforms and Skeletons in Graphics Hardware
Strzodka, R. / Telea, A. | 2004
A Botanically Inspired High-Dimensional Visualization with Multivariate Glyphs
Chlan, E. B. / Rheingans, Penny | 2004
Browsing and Visualizing Digital Bibliographic Data
Klink, Stefan / Ley, Michael / Rabbidge, Emma / Reuther, Patrick / Walter, Bernd / Weber, Alexander | 2004
Visualization of Cardio-CT Data on Standard PC Hardware
Bauer, Michael | 2004
Medical Applications of Multi-Field Volume Rendering and VR Techniques
Kniss, Joe / Schulze, Jürgen P. / Wössner, Uwe / Winkler, Peter / Lang, Ulrich / Hansen, Charles | 2004
Volume Visualization and Visual Queries for Large High-Dimensional Datasets
Reina, G. / Ertl, T. | 2004
Software Landscapes: Visualizing the Structure of Large Software Systems
Balzer, Michael / Noack, Andreas / Deussen, Oliver / Lewerentz, Claus | 2004
Occlusion Culling for Sub-Surface Models in Geo-Scientific Applications
Plate, John / Grundhoefer, Anselm / Schmidt, Benjamin / Froehlich, und Bernd | 2004
Meshless Isosurface Generation from Multiblock Data
Co, Christopher S. / Porumbescu, Serban D. / Joy, Kenneth I. | 2004
Efficient Isosurface Tracking Using Precomputed Correspondence Table
Ji, Guangfeng / Shen, Han-Wei | 2004
Efficient Display of Background Objects for Virtual Endoscopy using Flexible First-Hit Ray Casting
Neubauer, A. / Forster, M. / Wegenkittl, R. / Mroz, L. / Bühler, K. | 2004
Visualization of Anatomic Tree Structures with Convolution Surfaces
Oeltze, S. / Preim, B. | 2004
Adaptive Volume Construction from Ultrasound Images of a Human Heart
Reis, Gerd / Bertram, Martin / Lengen, Rolf H. van / Hagen, Hans | 2004