Now showing items 1-16 of 16

    • Real-time Color Ball Tracking for Augmented Reality 

      Sýkora, Daniel; Sedlácek, David; Riege, Kai (The Eurographics Association, 2008)
      In this paper, we introduce a light-weight and robust tracking technique based on color balls. The algorithm builds on a variant of randomized Hough transform and is optimized for a use in real-time applications like on ...
    • Selective Stylization for Visually Uniform Tangible AR 

      Fischer, Jan; Flohr, Daniel; Straßer, Wolfgang (The Eurographics Association, 2008)
      In tangible user interfaces, physical props are used for direct interaction with a computer system. Tangible interaction applications often use augmented reality display techniques in order to overlay virtual graphical ...
    • A View Management Method for Mobile Mixed Reality Systems 

      Shibata, Fumihisa; Nakamoto, Hiroyuki; Sasaki, Ryoichi; Kimura, Asako; Tamura, Hideyuki (The Eurographics Association, 2008)
      This paper describes a view management method for annotations on mobile mixed reality systems. In recent years, mobile devices, such as mobile phones and PDAs, have rapidly gained popularity. Thus, MR systems using mo- ...
    • BAT - a Distributed Meta-tracking System 

      Kahlesz, Ferenc; Klein, Reinhard (The Eurographics Association, 2008)
      This paper describes the design of the 'BAT' (Bonn Articulated Tracker) visual tracking framework. This system allows the easy implementation of real-time, multi-camera motion tracking that can be distributed (also in ...
    • Tangible Interaction for 3D Widget Manipulation in Virtual Environments 

      Kruszynski, Krzysztof J.; Liere, Robert van (The Eurographics Association, 2008)
      In this paper we explore the usage of tangible controllers for the manipulation of 3D widgets in scientific visualization applications. Tangible controllers can be more efficient than unrestricted 6-DOF devices, since many ...
    • Camera Calibration of a NintendoWii Remote using PA-10 Robotic Arms 

      Grimes, Holly S.; Ferguson, Robin Stuart; McMenemy, Karen (The Eurographics Association, 2008)
      The Remote control unit for the Nintendo Wii computer games console features an infrared camera capable of detecting up to 4 infrared lights. As such, it is possible to calibrate this device using normal camera calibration ...
    • Using Teleporting, Awareness and Multiple Views to Improve Teamwork in Collaborative Virtual Environments 

      Dodds, Trevor J.; Ruddle, Roy A. (The Eurographics Association, 2008)
      Mobile Group Dynamics (MGDs) are a suite of techniques that help people work together in large-scale col- laborative virtual environments (CVEs). The present paper describes the implementation and evaluation of three ...
    • Spotlight Interest Management for Distributed Virtual Environments 

      Dunwell, Ian; Whelan, John C. (The Eurographics Association, 2008)
      This paper presents a novel refinement to visual attention-based interest management in distributed virtual environments (VEs). It is suggested that in the context of a desktop VE where only limited immersion occurs, using ...
    • A Framework for Performance Evaluation of Model-Based Optical Trackers 

      Smit, Ferdi A.; Liere, Robert van (The Eurographics Association, 2008)
      We describe a software framework to evaluate the performance of model-based optical trackers in virtual environments. The framework can be used to evaluate and compare the performance of different trackers under various ...
    • Effect of the Size of the Field of View on the Perceived Amplitude of Rotations of the Visual Scene 

      Ogier, Maelle; Bülthoff, Heinrich H.; Bresciani, Jean-Pierre (The Eurographics Association, 2008)
      Efficient navigation requires a good representation of body position/orientation in the environment and an accurate updating of this representation when the body-environment relationship changes. We tested here whether the ...
    • Interactive and Accurate Collision Detection in Virtual Orthodontics 

      Rodrigues, Maria Andréia F.; Rocha, Rafael S.; Silva, Wendel B. (The Eurographics Association, 2008)
      An interactive computer-based training tool for using in Orthodontics is aimed at students and experienced professionals who need to predict orthodontic treatment outcomes, including the determination whether and where the ...
    • Supervision of 3D Multimodal Rendering for Protein-protein Virtual Docking 

      Bouyer, Guillaume; Bourdot, Patrick (The Eurographics Association, 2008)
      Protein-Protein docking is a recent practice in biological research which involves using 3D models of proteins to predict the structure of complexes formed by these proteins. Currently, the most common methods used for ...
    • Integrating Particle Dispersion Models into Real-time Virtual Environments 

      Willemsen, Peter; Norgren, Andrew; Singh, Balwinder; Pardyjak, Eric R. (The Eurographics Association, 2008)
      We present a system for interacting with fast response particle dispersion models in a real-time virtual envi- ronment. The particle simulation system is used as both an engineering tool for modeling and understanding ...
    • Display Devices for Virtual Environments: Impact on Performance, Workload, and Simulator Sickness 

      Conradi, Jessica; Alexander, Thomas (The Eurographics Association, 2008)
      Usability and, thus, success of Virtual Environments (VE) systems are closely related to the type of display used. Applicable VE-displays range from simple desktop monitors with low immersion to high-end, immersive HMDs. ...
    • The Influence of Head Tracking and Stereo on User Performance with Non-Isomorphic 3D Rotation 

      Jr., Joseph J. LaViola; Forsberg, Andrew S.; Huffman, John; Bragdon, Andrew (The Eurographics Association, 2008)
      We present an experimental study that explores how head tracking and stereo viewing affect user performance when rotating 3D virtual objects using isomorphic and non-isomorphic rotation techniques. Our experiment com- pares ...
    • miniCAVE - A Fully immersive Display System Using Consumer Hardware 

      Schlechtweg, Stefan (The Eurographics Association, 2008)
      We present the design and construction of a small scale CAVE that employs active stereo using shutter glasses for viewing as well as for projection. It is controlled by a single server with four graphics boards. The main ...