Now showing items 1-20 of 31

    • View-Dependent Multiresolution Splatting of Non-Uniform Data 

      Jang, Justin; Ribarsky, William; Shaw, Christopher D.; Faust, Nickolas (The Eurographics Association, 2002)
      This paper develops an approach for the splat-based visualization of large scale, non-uniform data. A hierarchical structure is generated that permits detailed treatment at the leaf nodes of the non-uniform distribution. ...
    • Speech and Gesture Multimodal Control of a Whole Earth 3D Visualization Environment 

      Krum, David M.; Omoteso, Olugbenga; Ribarsky, William; Starner, Thad; Hodges, Larry F. (The Eurographics Association, 2002)
      A growing body of research shows several advantages to multimodal interfaces including increased expressiveness, flexibility, and user freedom. This paper investigates the design of such an interface that integrates speech ...
    • Comparison of Morphological Pyramids for Multiresolution MIP Volume Rendering 

      Roerdink, Jos B.T.M. (The Eurographics Association, 2002)
      We recently proposed a multiresolution representation for maximum intensity projection (MIP) volume rendering based on morphological adjunction pyramids which allow progressive refinement and have the property of perfect ...
    • Vortex Tracking in Scale-Space 

      Bauer, Dirk; Peikert, Ronald (The Eurographics Association, 2002)
      Scale-space techniques have become popular in computer vision for their capability to access the multiscale information inherently contained in images. We show that the field of flow visualization can benefit from these ...
    • Volume Rendering Multivariate Data to Visualize Meteorological Simulations: A Case Study 

      Kniss, Joe; Hansen, Charles (The Eurographics Association, 2002)
      High resolution computational weather models are becoming increasing complex. However, the analysis of these models has not benefited from recent advancements in volume visualization. This case study applies the ideas and ...
    • Best Quadratic Spline Approximation for Hierarchical Visualization 

      Wiley, D. F.; Childs, H. R.; Hamann, B.; Joy, K. I.; Max, N. L. (The Eurographics Association, 2002)
      We present a method for hierarchical data approximation using quadratic simplicial elements for domain decomposition and field approximation. Higher-order simplicial elements can approximate data better than linear elements. ...
    • Locating Closed Streamlines in 3D Vector Fields 

      Wischgoll, Thomas; Scheuermann, Gerik (The Eurographics Association, 2002)
      The analysis and visualization of flows is a central problem in visualization. Topology based methods have gained increasing interest in recent years. This article describes a method for the detection of closed streamlines ...
    • An Open Toolkit for Prototyping Reverse Engineering Visualizations 

      Telea, Alexandru; Maccari, Alessandro; Riva, Claudio (The Eurographics Association, 2002)
      Maintenance and evolution of complex software systems (such as mobile telephones) involves activities such as reverse engineering (RE) and software visualization. Although several RE tools exist, we found their architecture ...
    • Visualization of Large Web Access Data Sets 

      Hao, Ming C.; Garg, Pankaj; Dayal, Umeshwar; Machiraju, Vijay; Cotting, Daniel (The Eurographics Association, 2002)
      Many real-world e-service applications require analyzing large volumes of transaction data to extract web access information. This paper describes Web Access Visualization (WAV) a system that visually associates the ...
    • AUFLIC: An Accelerated Algorithm For Unsteady Flow Line Integral Convolution 

      Liu, ZhanPing; II, Robert James Moorhead (The Eurographics Association, 2002)
      UFLIC (Unsteady Flow Line Integral Convolution) is an effective texture synthesis technique to visualize unsteady flow with enhanced temporal coherence, but it is time-consuming to generate. This paper presents an accelerated ...
    • Viewpoint Entropy: A New Tool for Obtaining Good Views of Molecules 

      Vázquez, Pere-Pau; Feixas, Miquel; Sbert, Mateu; Llobet, Antoni (The Eurographics Association, 2002)
      The computation of good viewpoints is important in several fields: computer graphics, removal of degeneracies in computational geometry, robotics, graph drawing, etc. However, in areas such as computer graphics there is ...
    • An Augmented Fast Marching Method for Computing Skeletons and Centerlines 

      Telea, Alexandru; Wijk, Jarke J. van (The Eurographics Association, 2002)
      We present a simple and robust method for computing skeletons for arbitrary planar objects and centerlines for 3D objects. We augment the Fast Marching Method (FMM) widely used in level set applications 11 by computing the ...
    • Visualization of Bibliographic Networks with a Reshaped Landscape Metaphor 

      Brandes, U.; Willhalm, T. (The Eurographics Association, 2002)
      We describe a novel approach to visualize bibliographic networks that facilitates the simultaneous identification of clusters (e.g., topic areas) and prominent entities (e.g., surveys or landmark papers). While employing ...
    • Bag-of-Particles as a Deformable Model 

      Stahl, D.; Ezquerra, N.; Turk, G. (The Eurographics Association, 2002)
      We present an interactive, physically-based, elastically deformable model using a particle system to model surfaces with interior volumes that can be haptically felt. Oriented particles used in existing surface-only models, ...
    • A Generic Solution for Hardware-Accelerated Remote Visualization 

      Stegmaier, Simon; Magallón, Marcelo; Ertl, Thomas (The Eurographics Association, 2002)
      This paper presents a generic solution for hardware-accelerated remote visualization that works transparently for all OpenGL-based applications and OpenGL-based scene graphs. Universality is achieved by taking advantage ...
    • An Evaluation of Information Visualization in Attention-Limited Environments 

      Somervell, Jacob; McCrickard, D. Scott; North, Chris; Shukla, Maulik (The Eurographics Association, 2002)
      People often need to quickly access or maintain awareness of secondary information while busy with other primary tasks. Information visualizations provide rapid, effective access to information, but are generally designed ...
    • Cell-Based First-Hit Ray Casting 

      Neubauer, A.; Mroz, L.; Hauser, H.; Wegenkittl, R. (The Eurographics Association, 2002)
      Cell-based first-hit ray casting is a new technique for fast perspective volume visualization. This technique, based on the well known ray casting algorithm, performs iso-surfacing and supports interactive threshold ...
    • A Novel Approach To Vortex Core Region Detection 

      Jiang, Ming; Machiraju, Raghu; Thompson, David (The Eurographics Association, 2002)
      In this paper we present a simple and efficient vortex core region detection algorithm based on ideas derived from combinatorial topology. These ideas originated from Sperner s lemma, which by itself is of little value to ...
    • Useful Properties of Semantic Depth of Field for Better F+C Visualization 

      Kosara, Robert; Miksch, Silvia; Hauser, Helwig (The Eurographics Association, 2002)
      This paper presents the results of a thorough user study that was performed to assess some features and the general usefulness of Semantic Depth of Field (SDOF). Based on these results, concrete hints are given on how SDOF ...
    • Parallel and Out-of-core View-dependent Isocontour Visualization Using Random Data Distribution 

      Zhang, Xiaoyu; Bajaj, Chandrajit; Ramachandran, Vijaya (The Eurographics Association, 2002)
      In this paper we describe a parallel and out-of-core view-dependent isocontour visualization algorithm that efficiently extracts and renders the visible portions of an isosurface from large datasets. The algorithm first ...