Now showing items 16-31 of 31

    • 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 ...
    • Octreemizer: A Hierarchical Approach for Interactive Roaming Through Very Large Volumes 

      Plate, John; Tirtasana, Michael; Carmona, Rhadamés; Fröhlich, Bernd (The Eurographics Association, 2002)
      We have developed a hierarchical paging scheme for handling very large volumetric data sets at interactive frame rates. Our system trades texture resolution for speed and uses effective prediction strategies. We have tested ...
    • 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 ...
    • 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 ...
    • Secondary Task Display Attributes - Optimizing Visualizations for Cognitive Task Suitability and Interference Avoidance 

      Chewar, C. M.; McCrickard, D. Scott; Ndiwalana, Ali; North, Chris; Pryor, Jon; Tessendorf, David (The Eurographics Association, 2002)
      We found that established display design guidelines for focal images cannot be extended to images displayed as a secondary task in a dual-task situation. This paper describes an experiment that determines a new ordering ...
    • Shear-Warp Deluxe: The Shear-Warp Algorithm Revisited 

      Sweeney, Jon; Mueller, Klaus (The Eurographics Association, 2002)
      Despite continued advances in volume rendering technology, the Shear-Warp algorithm, although conceived as early as 1994, still remains the world s fastest purely software-based volume rendering algorithm. The impressive ...
    • 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 ...
    • STATISTICAL COMPUTATION OF SALIENT ISO-VALUES 

      Tenginakai, Shivaraj; Machiraju, Raghu (The Eurographics Association, 2002)
      Detection of the salient iso-values in a volume dataset is often the first step towards its exploration. An error-and-trail approach is often used; new semi-automatic techniques either make assumptions about their data [4] ...
    • 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 ...
    • 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. ...
    • 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 ...
    • 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 ...
    • 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 ...
    • Visualizing and Investigating Multidimensional Functions 

      Santos, S. R. dos; Brodlie, K. W. (The Eurographics Association, 2002)
      This paper addresses the problem of visualizing multidimensional scalar functions. These functions are often encountered in fields such as Engineering, Mathematics, and Physics to understand and model complex phenomena. ...
    • 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 ...
    • 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 ...