Eurovis: Eurographics Conference on Visualization: Recent submissions

Now showing items 681-700 of 762

    • 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 ...

    • 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 ...

    • 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 ...

    • 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 ...

    • 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. ...

    • A Continuous Skeletonization Method Based on Level Sets 

      Rumpf, Martin; Telea, Alexandru (The Eurographics Association, 2002)
      A robust and efficient method in 2D and 3D for the calculation of skeletons for arbitrary objects is presented. The method is based on the calculation of the distance function with respect to the object boundary. This is ...

    • 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, ...

    • 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. ...

    • 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. ...

    • Direct Volume Rendering of Photographic Volumes Using Multi-Dimensional Color-Based Transfer Functions 

      Morris, Christopher J.; Ebert, David (The Eurographics Association, 2002)
      Traditionally, volume rendering of medical data has been comprised of transfer functions that map a scalar value, usually a MRI or CT intensity, to an opacity. Corresponding color maps are either selected regardless of the ...

    • Feature-Preserving Volume Filtering 

      Neumann, László; Csébfalvi, Balázs; Viola, Ivan; Mlejnek, Matej; Gröller, Eduard (The Eurographics Association, 2002)
      In this paper a feature-preserving volume filtering method is presented. The basic idea is to minimize a threecomponent global error function penalizing the density and gradient errors and the curvature of the unknown ...

    • 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 ...

    • 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 ...

    • 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 ...

    • Interactive Previewing for Transfer Function Specification in Volume Rendering 

      Botha, Charl P.; Post, Frits H. (The Eurographics Association, 2002)
      This paper presents a new technique for supplying meaningful visual feedback during direct volume rendering transfer function specification. The technique uses meta-data calculated during a pre-processing step to generate ...

    • 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 ...

    • 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 ...

    • Adding a scalar value to texture-based vector field representations by local contrast analysis 

      Sanna, A.; Zunino, C.; Montrucchio, B.; Montuschi, P. (The Eurographics Association, 2002)
      Several algorithms can effectively represent vector fields by texture-based representations, visualizing at most all information on the field: direction, orientation, and local magnitude. An open problem still remains 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 ...

    • Interactive Visualization and Steering of CFD Simulations 

      Kreylos, O.; Tesdall, A. M.; Hamanny, B.; Hunter, J. K.; Joy, K. I. (The Eurographics Association, 2002)
      We describe a system that supports real-time interactive visualization of computational fluid dynamics (CFD) simulations. The system allows a user to place and manipulate visualization primitives, such as isolines and ...