Browsing 27-Issue 3 by Issue Date

Now showing items 1-20 of 45

    • Results of a User Study on 2D Hurricane Visualization 

      Martin, Joel P.; II, J. Edward Swan; II, Robert J. Moorhead; Liu, Zhanping; Cai, Shangshu (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) ...

    • Visualizing Genome Expression and Regulatory Network Dynamics in Genomic and Metabolic Context 

      Westenberg, Michel A.; Hijum, S. A. F. T. van; Kuipers, O. P.; Roerdink, Jos B. T. M. (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      DNA microarrays are used to measure the expression levels of thousands of genes simultaneously. In a time series experiment, the gene expressions are measured as a function of time. We present an application for integrated ...

    • Density Displays for Data Stream Monitoring 

      Hao, Ming; Keim, Daniel A.; Dayal, Umeshwar; Oelke, Daniela; Tremblay, Chantal (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      In many business applications, large data workloads such as sales figures or process performance measures need to be monitored in real-time. The data analysts want to catch problems in flight to reveal the root cause of ...

    • Concurrent Viewing of Multiple Attribute-Specific Subspaces 

      Sisneros, Robert; Johnson, C. Ryan; Huang, Jian (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      In this work we present a point classification algorithm for multi-variate data. Our method is based on the concept of attribute subspaces, which are derived from a set of user specified attribute target values. Our ...

    • A Four-level Focus + Context Approach to Interactive Visual Analysis of Temporal Features in Large Scientific Data 

      Muigg, Philipp; Kehrer, Johannes; Oeltze, Steffen; Piringer, Harald; Doleisch, Helmut; Preim, Bernhard; Hauser, Helwig (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      In this paper we present a new approach to the interactive visual analysis of time-dependent scientific data - both from measurements as well as from computational simulation - by visualizing a scalar function over time ...

    • Animating Causal Overlays 

      Bartram, Lyn; Yao, Miao (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Most approaches to representing causality, such as the common causal graph, require a separate and static view, but in many cases it is useful to add the dimension of causality to the context of an existing visualization. ...

    • Classification and Uncertainty Visualization of Dendritic Spines from Optical Microscopy Imaging 

      Janoos, Firdaus; Nouansengsy, Boonthanome; Xu, Xiaoyin; Machiraju, Raghu; Wong, Stephen T. C. (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Abstract Neuronal dendrites and their spines affect the connectivity of neural networks, and play a significant role in many neurological conditions. Neuronal function is observed to be closely correlated with the appearance, ...

    • Extraction Of Feature Lines On Surface Meshes Based On Discrete Morse Theory 

      Sahner, Jan; Weber, Britta; Prohaska, Steffen; Lamecker, Hans (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      We present an approach for extracting extremal feature lines of scalar indicators on surface meshes, based on discrete Morse Theory. By computing initial Morse-Smale complexes of the scalar indicators of the mesh, we obtain ...

    • Visual Comparison of Hierarchically Organized Data 

      Holten, Danny; Wijk, Jarke J. van (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      We provide a novel visualization method for the comparison of hierarchically organized data. Our technique visualizes a pair of hierarchies that are to be compared and simultaneously depicts how these hierarchies are related ...

    • GPU Local Triangulation: an Interpolating Surface Reconstruction Algorithm 

      Buchart, Carlos; Borro, Diego; Amundarain, Aiert (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      A GPU capable method for surface reconstruction from unorganized point clouds without additional information, called GLT (GPU Local Triangulation), is presented. The main objective of this research is the generation of a ...

    • Quality Isosurface Mesh Generation Using an Extended Marching Cubes Lookup Table 

      Raman, Sundaresan; Wenger, Rephael (The Eurographics Association and Blackwell Publishing Ltd., 2008)

    • TimeRadarTrees: Visualizing Dynamic Compound Digraphs 

      Burch, Michael; Diehl, Stephan (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      The evolution of dependencies in information hierarchies can be modeled by sequences of compound digraphs with edge weights. In this paper we present a novel approach to visualize such sequences of graphs. It uses radial ...

    • Particle Level Set Advection for the Interactive Visualization of Unsteady 3D Flow 

      Cuntz, Nicolas; Kolb, Andreas; Strzodka, Robert; Weiskopf, Daniel (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Typically, flow volumes are visualized by defining their boundary as iso-surface of a level set function. Grid-based level sets offer a good global representation but suffer from numerical diffusion of surface detail, ...

    • Physically-based Dye Advection for Flow Visualization 

      Li, Guo-Shi; Tricoche, Xavier; Hansen, Charles (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Dye advection is widely used in experimental flow analysis but has seen less use for visualization in computational fluid dynamics. One possible reason for this disconnect is the inaccuracy of the texture-based approach, ...

    • Virtual Klingler Dissection: Putting Fibers into Context 

      Schultz, Thomas; Sauber, Natascha; Anwander, Alfred; Theisel, Holger; Seidel, Hans-Peter (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Fiber tracking is a standard tool to estimate the course of major white matter tracts from diffusion tensor magnetic resonance imaging (DT-MRI) data. In this work, we aim at supporting the visual analysis of classical ...

    • Abstractive Representation and Exploration of Hierarchically Clustered Diffusion Tensor Fiber Tracts 

      Chen, Wei; Zhang, Song; Correia, Stephen; Ebert, David S. (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Diffusion tensor imaging (DTI) has been used to generate fibrous structures in both brain white matter and muscles. Fiber clustering groups the DTI fibers into spatially and anatomically related tracts. As an increasing ...

    • Raycasting of Light Field Galleries from Volumetric Data 

      Rezk-Salama, Christof; Todt, Severin; Kolb, Andreas (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      The paper describes a technique to generate high-quality light field representations from volumetric data. We show how light field galleries can be created to give unexperienced audiences access to interactive high-quality ...

    • Interactive Visualization for Memory Reference Traces 

      Choudhury, A. N. M. Imroz; Potter, Kristin C.; Parker, Steven G. (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      We present the Memory Trace Visualizer (MTV), a tool that provides interactive visualization and analysis of the sequence of memory operations performed by a program as it runs. As improvements in processor performance ...

    • Code Flows: Visualizing Structural Evolution of Source Code 

      Telea, Alexandru; Auber, David (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Understanding detailed changes done to source code is of great importance in software maintenance. We present Code Flows, a method to visualize the evolution of source code geared to the understanding of fine and mid-level ...

    • Visual Abstractions of Solvent Pathlines near Protein Cavities 

      Bidmon, Katrin; Grottel, Sebastian; Bös, Fabian; Pleiss, Jürgen; Ertl, Thomas (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Water is known to play a crucial role in protein structure, flexibility and activity. The use of molecular dynamics simulations allows detailed studies of complex protein-solvent interactions. Cluster analysis and density-based ...