Virtual Environments ’99

1. Front Matter

   Pages I-X

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2. Levels of Detail

   1. Validity-Preserving Simplification of Very Complex Polyhedral Solids

      • Carlos Andújar, Dolors Ayala, Pere Brunet

      Pages 1-10

   2. View-Dependent Topology Simplification

      • Jihad El-Sana, Amitabh Varshney

      Pages 11-22

   3. Adaptive tessellation of connected primitives for interactive walkthroughs in complex industrial virtual environments

      • M. Krus, P. Bourdot, A. Osorio, F. Guisnel, G. Thibault

      Pages 23-32

3. Tracking

   1. An Optical Tracking System for VR/AR-Applications

      • Klaus Dorfmüller

      Pages 33-42

   2. The integration of optical and magnetic tracking for multi-user augmented reality

      • Thomas Auer, Stefan Brantner, Axel Pinz

      Pages 43-52

   3. An Optically Based Direct Manipulation Interface for Human-Computer Interaction in an Augmented World

      • G. Klinker, D. Stricker, D. Reiners

      Pages 53-62

4. Rendering of Virtual Environments

   1. Improving The Illumination Quality Of VRML 97 Walkthrough Via Intensive Texture Usage

      • Cyril Kardassevitch, Jean Pierre Jessel, Mathias Paulin, René Caubet

      Pages 63-72

   2. Fast Walkthroughs with Image Caches and Ray Casting

      • Michael Wimmer, Markus Giegl, Dieter Schmalstieg

      Pages 73-84

   3. Using Virtual Environments to Enhance Visualization

      • D. R. S. Boyd, J. R. Gallop, K. E. V. Palmen, R. T. Platon, C. D. Seelig

      Pages 85-94

5. Distributed Environments

   1. Semantic Behaviours in Collaborative Virtual Environments

      • Emmanuel Frécon, Gareth Smith

      Pages 95-104

   2. A Distributed Device Diagnostics System Utilizing Augmented Reality and 3D Audio

      • Reinhold Behringer, Steven Chen, Venkataraman Sundareswaran, Kenneth Wang, Marius Vassiliou

      Pages 105-114

   3. Texture-based Volume Visualization for Multiple Users on the World Wide Web

      • Klaus Engel, Thomas Ertl

      Pages 115-124

6. Systems and Applications

   1. PVR An Architecture for Portable VR Applications

      • Robert van Liere, Jurriaan D. Mulder

      Pages 125-135

   2. Rapid Development of VRML Content via Geometric Programming

      • A. Paoluzzi, S. Francesi, S. Portuesi, M. Vicentino

      Pages 137-146

   3. Augmented Reality, the other way around

      • Didier Verna, Alain Grumbach

      Pages 147-156

7. Interaction

   1. Interaction Techniques on the Virtual Workbench

      • Rogier van de Pol, William Ribarsky, Larry Hodges, Frits Post

      Pages 157-168

   2. A General Framework for Cooperative Manipulation in Virtual Environments

      • David Margery, Bruno Arnaldi, Noël Plouzeau

      Pages 169-178

   3. Occlusion in Collaborative Augmented Environments

      • Anton Fuhrmann, Gerd Hesina, François Faure, Michael Gervautz

      Pages 179-190

8. Back Matter

   Pages 191-194

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This book contains the scientific papers presented at the SthEUROGRAPHICS Workshop on Virtual Environments '99, which st st was held in Vienna May 31 and June 1 . It was organized by the Institute of Computer Graphics of the Vienna University of Technology together with the Austrian Academy of Sciences and EUROGRAPHICS. The workshop brought together scientists from all over the world to present and discuss the latest scientific advances in the field of Virtual Environments. 31 papers where submitted for reviewing and 18 where selected to be presented at the workshop. Most of the top research institutions working in the area submitted papers and presented their latest results. These presentations were complemented by invited lectures from Stephen Feiner and Ron Azuma, two key researchers in the area of Augmented Reality. The book gives a good overview of the state of the art in Augmented Reality and Virtual Environment research. The special focus of the Workshop was Augmented Reality, reflecting a noticeable strong trend in the field of Virtual Environments. Augmented Reality tries to enrich real environments with virtual objects rather than replacing the real world with a virtual world. The main challenges include real time rendering, tracking, registration and occlusion of real and virtual objects, shading and lighting interaction, and interaction techniques in augmented environments. These problems are addressed by new research results documented in this book. Besides Augmented Reality, the papers collected here also address levels of detail, distributed environments, systems and applications, and interaction techniques.

• 3D
• 3D graphics
• Augmented Reality
• Computergraphik
• Textur
• VRML
• computer graphics
• rendering
• shading
• topology
• virtual environments
• visualization

• Institute of Computer Graphics, Technical University, Vienna, Austria

  Michael Gervautz, Dieter Schmalstieg

• ZGDV Computer Graphics Center, Darmstadt, Germany

  Axel Hildebrand

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