Browsing 27-Issue 3 by Issue Date

Now showing items 21-40 of 45

    • Navigation and Exploration of Interconnected Pathways 

      Streit, Marc; Kalkusch, M.; Kashofer, K.; Schmalstieg, Dieter (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Visualizing pathways, i. e. models of cellular functional networks, is a challenging task in computer assisted biomedicine. Pathways are represented as large collections of interwoven graphs, with complex structures present ...

    • Discrete Multi-Material Interface Reconstruction for Volume Fraction Data 

      Anderson, John C.; Garth, C.; Duchaineau, Mark A.; Joy, Kenneth I. (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      We present the results from a user study looking at the ability of observers to mentally integrate wind direction and magnitude over a vector field. The data set chosen for the study is an MM5 (PSU/NCAR Mesoscale Model) ...

    • Lagrangian Visualization of Flow-Embedded Surface Structures 

      Garth, Christoph; Wiebel, Alexander; Tricoche, Xavier; Joy, Ken; Scheuermann, Gerik (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      The notions of Finite-Time Lyapunov Exponent (FTLE) and Lagrangian Coherent Structures provide a strong framework for the analysis and visualization of complex technical flows. Their definition is simple and intuitive, and ...

    • Interactive Exploratory Visualization of 2D Vector Fields 

      Isenberg, Tobias; Everts, Maarten H.; Grubert, Jens; Carpendale, Sheelagh (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      In this paper we present several techniques to interactively explore representations of 2D vector fields. Through a set of simple hand postures used on large, touch-sensitive displays, our approach allows individuals to ...

    • FromWeb Data to Visualization via Ontology Mapping 

      Gilson, Owen; Silva, Nuno; Grant, Phil W.; Chen, Min (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      In this paper, we propose a novel approach for automatic generation of visualizations from domain-specific data available on the web. We describe a general system pipeline that combines ontology mapping and probabilistic ...

    • Centrality Based Visualization of Small World Graphs 

      Ham, Frank van; Wattenberg, Martin (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Current graph drawing algorithms enable the creation of two dimensional node-link diagrams of huge graphs. However, for graphs with low diameter (of which "small world" graphs are a subset) these techniques begin to break ...

    • Visual Inspection of Multivariate Graphs 

      Pretorius, A. Johannes; Wijk, Jarke J. van (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Most graph visualization techniques focus on the structure of graphs and do not offer support for dealing with node attributes and edge labels. To enable users to detect relations and patterns in terms of data associated ...

    • Evaluation of Illustration-inspired Techniques for Time-varying Data Visualization 

      Joshi, Alark; Rheingans, Penny (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Illustration-inspired techniques have provided alternative ways to visualize time-varying data. Techniques such as speedlines, flow ribbons, strobe silhouettes and opacity-based techniques provide temporal context to the ...

    • Topology-Preserving lambda_2-based Vortex Core Line Detection for Flow Visualization 

      Schafhitzel, Tobias; Vollrath, Joachim E.; Gois, Joao P.; Weiskopf, Daniel; Castelo, Antonio; Ertl, Thomas (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      We propose a novel vortex core line extraction method based on the lambda_2 vortex region criterion in order to improve the detection of vortex features for 3D flow visualization. The core line is defined as a curve that ...

    • Illustrative Parallel Coordinates 

      McDonnell, Kevin T.; Mueller, Klaus (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Illustrative parallel coordinates (IPC) is a suite of artistic rendering techniques for augmenting and improving parallel coordinate (PC) visualizations. IPC techniques can be used to convey a large amount of information ...

    • Interactive Visualization of Multimodal Volume Data for Neurosurgical Tumor Treatment 

      Rieder, Christian; Ritter, Felix; Raspe, Matthias; Peitgen, Heinz-Otto (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      We present novel interactive methods for the visualization of multimodal volume data as used in neurosurgical therapy planning. These methods allow surgeons to explore multimodal volumes and focus on functional data and ...

    • Visual Clustering in Parallel Coordinates 

      Zhou, Hong; Yuan, Xiaoru; Qu, Huamin; Cui, Weiwei; Chen, Baoquan (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Parallel coordinates have been widely applied to visualize high-dimensional and multivariate data, discerning patterns within the data through visual clustering. However, the effectiveness of this technique on large data ...

    • A Screen Space Quality Method for Data Abstraction 

      Johansson, Jimmy; Cooper, Matthew (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      The rendering of large data sets can result in cluttered displays and non-interactive update rates, leading to time consuming analyses. A straightforward solution is to reduce the number of items, thereby producing an ...

    • Geometry-driven Visualization of Microscopic Structures in Biology 

      Mosaliganti, Kishore; Machiraju, Raghu; Huang, Kun; Leone, Gustavo (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      At a microscopic resolution, biological structures are composed of cells, red blood corpuscles (RBCs), cytoplasm and other microstructural components. There is a natural pattern in terms of distribution, arrangement and ...

    • Exploratory Visualization of Animal Kinematics Using Instantaneous Helical Axes 

      Keefe, Daniel F.; O'Brien, Trevor M.; Baier, David B.; Gatesy, Stephen M.; Brainerd, Elizabeth L.; Laidlaw, David H. (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      We present novel visual and interactive techniques for exploratory visualization of animal kinematics using instantaneous helical axes (IHAs). The helical axis has been used in orthopedics, biomechanics, and structural ...

    • Visual Analysis and Semantic Exploration of Urban LIDAR Change Detection 

      Butkiewicz, Thomas; Chang, Remco; Wartell, Zachary; Ribarsky, William (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Many previous approaches to detecting urban change from LIDAR point clouds interpolate the points into rasters, perform pixel-based image processing to detect changes, and produce 2D images as output. We present a method ...

    • Illustrative Hybrid Visualization and Exploration of Anatomical and Functional Brain Data 

      Jainek, Werner M.; Born, Silvia; Bartz, Dirk; Straßer, Wolfgang; Fischer, Jan (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Common practice in brain research and brain surgery involves the multi-modal acquisition of brain anatomy and brain activation data. These highly complex three-dimensional data have to be displayed simultaneously in order ...

    • Sound Tracing: Rendering Listener Specific Acoustic Room Properties 

      Bellmann, Jens; Michel, Frank; Deines, Eduard; Hering-Bertram, Martin; Mohring, Jan; Hagen, Hans (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      We present an acoustic rendering approach visualizing the listener-specific contribution of frequency-dependent pressure fields on a scene geometry with acoustic reflection and scattering properties. Our method facilitates ...

    • Investigative Visual Analysis of Global Terrorism 

      Wang, Xiaoyu; Miller, Erin; Smarick, Kathleen; Ribarsky, William; Chang, Remco (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Recent increases in terrorist activity around the world have made analyzing and understanding such activities more critical than ever. With the help of organizations such as the National Center for the Study of Terrorism ...

    • Towards Closing the Analysis Gap: Visual Generation of Decision Supporting Schemes from Raw Data 

      May, Thorsten; Kohlhammer, Jörn (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      The derivation, manipulation and verification of analytical models from raw data is a process which requires a transformation of information across different levels of abstraction. We introduce a concept for the coupling ...