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Browsing 28-Issue 3 by Issue Date

Now showing items 21-40 of 41

    • Scalable, Versatile and Simple Constrained Graph Layout 

      Dwyer, Tim (The Eurographics Association and Blackwell Publishing Ltd., 2009)
      We describe a new technique for graph layout subject to constraints. Compared to previous techniques the proposed method is much faster and scalable to much larger graphs. For a graph with n nodes, m edges and c constraints ...

    • Force-Directed Edge Bundling for Graph Visualization 

      Holten, Danny; Wijk, Jarke J. van (The Eurographics Association and Blackwell Publishing Ltd., 2009)
      Abstract Graphs depicted as node-link diagrams are widely used to show relationships between entities. However, nodelink diagrams comprised of a large number of nodes and edges often suffer from visual clutter. The use of ...

    • Visualizing the Evolution of Compound Digraphs with TimeArcTrees 

      Greilich, Martin; Burch, Michael; Diehl, Stephan (The Eurographics Association and Blackwell Publishing Ltd., 2009)
      Compound digraphs are a widely used model in computer science. In many application domains these models evolve over time. Only few approaches to visualize such dynamic compound digraphs exist and mostly use animation to ...

    • The Chinese Room: Visualization and Interaction to Understand and Correct Ambiguous Machine Translation 

      Albrecht, Joshua; Hwa, Rebecca; Marai, G. Elisabeta (The Eurographics Association and Blackwell Publishing Ltd., 2009)
      We present The Chinese Room, a visualization interface that allows users to explore and interact with a multitude of linguistic resources in order to decode and correct poor machine translations. The target users of The ...

    • DocuBurst: Visualizing Document Content using Language Structure 

      Collins, Christopher; Carpendale, Sheelagh; Penn, Gerald (The Eurographics Association and Blackwell Publishing Ltd., 2009)
      Textual data is at the forefront of information management problems today. One response has been the development of visualizations of text data. These visualizations, commonly based on simple attributes such as relative ...

    • Quasi-interpolation on the Body Centered Cubic Lattice 

      Entezari, Alireza; Mirzargar, Mahsa; Kalantari, Leila (The Eurographics Association and Blackwell Publishing Ltd., 2009)
      This paper introduces a quasi-interpolation method for reconstruction of data sampled on the Body Centered Cubic (BCC) lattice. The reconstructions based on this quasi-interpolation achieve the optimal approximation order ...

    • A Directional Occlusion Shading Model for Interactive Direct Volume Rendering 

      Schott, Mathias; Pegoraro, Vincent; Hansen, Charles; Boulanger, Kévin; Bouatouch, Kadi (The Eurographics Association and Blackwell Publishing Ltd., 2009)
      Volumetric rendering is widely used to examine 3D scalar fields from CT/MRI scanners and numerical simulation datasets. One key aspect of volumetric rendering is the ability to provide perceptual cues to aid in understanding ...

    • Accelerating Volume Raycasting using Proxy Spheres 

      Liu, Baoquan; Clapworthy, Gordon J.; Dong, Feng (The Eurographics Association and Blackwell Publishing Ltd., 2009)
      In this paper, we propose an efficient solution that addresses the performance problems of current single-pass GPU raycasting algorithms. Our paper provides more control over the rendering process by introducing tighter ...

    • Selecting Good Views of High-dimensional Data using Class Consistency 

      Sips, Mike; Neubert, Boris; Lewis, John P.; Hanrahan, Pat (The Eurographics Association and Blackwell Publishing Ltd., 2009)
      Abstract Many visualization techniques involve mapping high-dimensional data spaces to lower-dimensional views. Unfortunately, mapping a high-dimensional data space into a scatterplot involves a loss of information; or, ...

    • Fused Multi-Volume DVR using Binary Space Partitioning 

      Lindholm, Stefan; Ljung, Patric; Hadwiger, Markus; Ynnerman, Anders (The Eurographics Association and Blackwell Publishing Ltd., 2009)
      Multiple-volume visualization is a growing field in medical imaging providing simultaneous exploration of volumes acquired from varying modalities. However, high complexity results in an increased strain on performance ...

    • MultiClusterTree: Interactive Visual Exploration of Hierarchical Clusters in Multidimensional Multivariate Data 

      Long, Tran Van; Linsen, Lars (The Eurographics Association and Blackwell Publishing Ltd., 2009)
      Visual analytics of multidimensional multivariate data is a challenging task because of the difficulty in understanding metrics in attribute spaces with more than three dimensions. Frequently, the analysis goal is not to ...

    • The Gödel Engine - An Interactive Approach to Visualization in General Relativity 

      Grave, Frank; Müller, Thomas; Dachsbacher, Carsten; Wunner, Günter (The Eurographics Association and Blackwell Publishing Ltd., 2009)
      We present a methodical new approach to visualize the aspects of general relativity from a self-centered perspective. We focus on the visualization of the Gödel universe, which is an exact solution to Einstein s field ...

    • Visualisation of Sensor Data from Animal Movement 

      Grundy, Edward; Jones, Mark W.; Laramee, Robert S.; Wilson, Rory P.; Shepard, Emily L. C. (The Eurographics Association and Blackwell Publishing Ltd., 2009)
      A new area of biological research is identifying and grouping patterns of behaviour in wild animals by analysing data obtained through the attachment of tri-axial accelerometers. As these recording devices become smaller ...

    • iPCA: An Interactive System for PCA-based Visual Analytics 

      Jeong, Dong Hyun; Ziemkiewicz, Caroline; Fisher, Brian; Ribarsky, William; Chang, Remco (The Eurographics Association and Blackwell Publishing Ltd., 2009)
      Principle Component Analysis (PCA) is a widely used mathematical technique in many fields for factor and trend analysis, dimension reduction, etc. However, it is often considered to be a black box operation whose results ...

    • Instant Volume Visualization using Maximum Intensity Difference Accumulation 

      Bruckner, Stefan; Gröller, M. Eduard (The Eurographics Association and Blackwell Publishing Ltd., 2009)
      It has long been recognized that transfer function setup for Direct Volume Rendering (DVR) is crucial to its usability. However, the task of finding an appropriate transfer function is complex and time-consuming even for ...

    • Splatting the Lines in Parallel Coordinates 

      Zhou, Hong; Cui, Weiwei; Qu, Huamin; Wu, Yingcai; Yuan, Xiaoru; Zhuo, Wei (The Eurographics Association and Blackwell Publishing Ltd., 2009)
      coordinates. Our framework consists of two major components: a polyline splatter for cluster detection and a segment splatter for clutter reduction. The cluster detection is performed by splatting the lines one by one into ...

    • Lifted Domain Coloring 

      Poelke, Konstantin; Polthier, Konrad (The Eurographics Association and Blackwell Publishing Ltd., 2009)
      Complex-valued functions are fundamental objects in complex analysis, algebra, differential geometry and in many other areas such as numerical mathematics and physics. Visualizing complex functions is a non-trivial task ...

    • Semi-Automatic Time-Series Transfer Functions via Temporal Clustering and Sequencing 

      Woodring, Jonathan; Shen, Han-Wei (The Eurographics Association and Blackwell Publishing Ltd., 2009)
      When creating transfer functions for time-varying data, it is not clear what range of values to use for classification, as data value ranges and distributions change over time. In order to generate time-varying transfer ...

    • Bivariate Transfer Functions on Unstructured Grids 

      Song, Yuyan; Chen, Wei; Maciejewski, Ross; Gaither, Kelly P.; Ebert, David S. (The Eurographics Association and Blackwell Publishing Ltd., 2009)
      Multi-dimensional transfer functions are commonly used in rectilinear volume renderings to effectively portray materials, material boundaries and even subtle variations along boundaries. However, most unstructured grid ...

    • Illuminated 3D Scatterplots 

      Sanftmann, Harald; Weiskopf, Daniel (The Eurographics Association and Blackwell Publishing Ltd., 2009)
      In contrast to 2D scatterplots, the existing 3D variants have the advantage of showing one additional data dimension, but suffer from inadequate spatial and shape perception and therefore are not well suited to display ...