VisSym03: Joint Eurographics - IEEE TCVG Symposium on Visualization: Recent submissions

Now showing items 1-20 of 30

    • Hierarchical Isosurface Segmentation Based on Discrete Curvature 

      Vivodtzev, Fabien; Linsen, Lars; Bonneau, Georges-Pierre; Hamann, Bernd; Joy, Kenneth I.; Olshausen, Bruno A. (The Eurographics Association, 2003)
      A high-level approach to describe the characteristics of a surface is to segment it into regions of uniform curvature behavior and construct an abstract representation given by a (topology) graph. We propose a surface ...

    • Hardware-assisted View-dependent Isosurface Extraction using Spherical Partition 

      Gao, Jinzhu; Shen, Han-Wei (The Eurographics Association, 2003)
      Extracting only the visible portion of an isosurface can improve both the computation efficiency and the rendering speed. However, the visibility test overhead can be quite high for large scale data sets. In this paper, ...

    • ISOSLIDER: A System for Interactive Exploration of Isosurfaces 

      Chhugani, Jatin; Vishwanath, Sudhir; Cohen, Jonathan; Kumar, Subodh (The Eurographics Association, 2003)
      We present ISOSLIDER, a system for interactive exploration of isosurfaces of a scalar field. Our algorithm focuses on fast update of isosurfaces for interactive display as a user makes small changes to the isovalue of the ...

    • Smart Hardware-Accelerated Volume Rendering 

      Roettger1, Stefan; Guthe, Stefan; Weiskopf, Daniel; Ertl, Thomas; Strasser, Wolfgang (The Eurographics Association, 2003)
      For volume rendering of regular grids the display of view-plane aligned slices has proven to yield both good quality and performance. In this paper we demonstrate how to merge the most important extensions of the original ...

    • Rendering Vector Data over Global, Multi-resolution 3D Terrain 

      Wartell, Zachary; Kang, Eunjung; Wasilewski, Tony; Ribarsky, William; Faust, Nickolas (The Eurographics Association, 2003)
      Modern desktop PCs are capable of taking 2D Geographic Information System (GIS) applications into the realm of interactive 3D virtual worlds. In prior work we developed and presented graphics algorithms and data management ...

    • Interactive Feature Specification for Focus+Context Visualization of Complex Simulation Data 

      Doleisch, Helmut; Gasser, Martin; Hauser, Helwig (The Eurographics Association, 2003)
      Visualization of high-dimensional, large data sets, resulting from computational simulation, is one of the most challenging fields in scientific viualization. When visualization aims at supporting the analysis of such data ...

    • Post-Convolved Splatting 

      Neophytou, Neophytos; Mueller, Klaus (The Eurographics Association, 2003)
      One of the most expensive operations in volume rendering is the interpolation of samples in volume space. The number of samples, in turn, depends on the resolution of the final image. Hence, viewing the volume at high ...

    • Vector Field Visualization using Markov Random Field Texture Synthesis 

      Taponecco, Francesca; Alexa, Marc (The Eurographics Association, 2003)
      Vector field visualization aims at generating images in order to convey the information existing in the data. We use Markov Random Field (MRF) texture synthesis methods to generate the visualization from a set of sample ...

    • Improving Topological Segmentation of Three-dimensional Vector Fields 

      Mahrous, Karim M.; Bennett, Janine C.; Hamann, Bernd; Joy, Kenneth I. (The Eurographics Association, 2003)
      We present three enhancements to accelerate the extraction of separatrices of three-dimensional vector fields, using intelligently selected "sample" streamlines. These enhancements reduce the number of needed sample ...

    • A Robust Level-Set Algorithm for Centerline Extraction 

      Telea, Alexandru; Vilanova, Anna (The Eurographics Association, 2003)
      We present a robust method for extracting 3D centerlines from volumetric datasets. We start from a 2D skeletonization method to locate voxels centered with respect to three orthogonal slicing directions. Next, we introduce ...

    • Adaptive Smooth Scattered-data Approximation for Large-scale Terrain Visualization 

      Bertram, Martin; Tricoche, Xavier; Hagen, Hans (The Eurographics Association, 2003)
      We present a fast method that adaptively approximates large-scale functional scattered data sets with hierarchical B-splines. The scheme is memory efficient, easy to implement and produces smooth surfaces. It combines ...

    • Contouring Curved Quadratic Elements 

      Wiley, D. F.; Childs, H. R.; Gregorski, B. F.; Hamann, B.; Joy, K. I. (The Eurographics Association, 2003)
      We show how to extract a contour line (or isosurface) from quadratic elements - specifically from quadratic triangles and tetrahedra. We also devise how to transform the resulting contour line (or surface) into a quartic ...

    • Interaction of Light and Tensor Fields 

      Zheng, Xiaoqiang; Pang, Alex (The Eurographics Association, 2003)
      We present three new ways of looking at tensor volumes. All three methods are based on the interaction of simulated light and the tensor field. Conceptually, rays are shot from a certain direction into the tensor volume. ...

    • MCMR: A Fluid View on Time Dependent Volume Data 

      Leeuw, Wim de; Liere, Robert van (The Eurographics Association, 2003)
      Mass Conservative Motion Reconstruction is a new method for estimating motion in time dependent volume data. A time dependent vector field representing the movement of the data is computed from a sequence of scalar volume ...

    • Efficient Visualization of Large Medical Image Datasets on Standard PC Hardware 

      Pekar, V.; Hempel, D.; Kiefer, G.; Busch, M.; Weese, J. (The Eurographics Association, 2003)
      Fast and accurate algorithms for medical image processing and visualization are becoming increasingly important due to routine acquisition and processing of rapidly growing amounts of data in clinical practice. At the same ...

    • Feature Flow Fields 

      Theisel, H.; Seidel, H.-P. (The Eurographics Association, 2003)
      Feature tracking algorithms for instationary vector fields are usually based on a correspondence analysis of the features at different time steps. This paper introduces a method for feature tracking which is based on the ...

    • Case Study: Cellar Scaffold Extraction Using Crest Point for Volume Rendering 

      Hu, Jiuxiang; Baluch, Page D.; Razdan, Anshuman; Nielson, Gregory M.; Farin, Gerald E.; Capco, David G. (The Eurographics Association, 2003)
      Extraction of scaffolds, such as the meiotic spindles, a 3D tubular framework consisting of the microtubules, from conforcal laser scanning microscopy (CLSM) data of a cell is a challenge in biological image processing. ...

    • Case Study: Comparing Two Methods for Filtering External Motion in 4D Confocal Microscopy Data 

      Leeuw, Wim de; Liere, Robert van (The Eurographics Association, 2003)
      In this case study, we compare two methods for filtering external motion in time dependent volume data sets acquired from confocal microscopy. The pros and cons of a landmark based and a voxel based method are discussed. ...

    • Anti-Aliased Volume Extraction 

      Lakare, Sarang; Kaufman, Arie (The Eurographics Association, 2003)
      We present a technique to extract regions from a volumetric dataset without introducing any aliasing so that the extracted volume can be explored using direct volume rendering techniques. Extracting regions using binary ...

    • Detecting Critical Regions in Scalar Fields 

      Weber, Gunther H.; Scheuermann, Gerik; Hamann, Bernd (The Eurographics Association, 2003)
      Trivariate data is commonly visualized using isosurfaces or direct volume rendering. When exploring scalar fields by isosurface extraction it is often difficult to choose isovalues that convey "useful" information. The ...