Now showing items 21-40 of 59

    • Visual Analysis of Charge Flow Networks for Complex Morphologies 

      Kottravel, Sathish; Falk, Martin; Bin Masood, Talha; linares, mathieu; Hotz, Ingrid (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      In the field of organic electronics, understanding complex material morphologies and their role in efficient charge transport in solar cells is extremely important. Related processes are studied using the Ising model and ...
    • Ray Tracing Generalized Tube Primitives: Method and Applications 

      Han, Mengjiao; Wald, Ingo; Usher, Will; Wu, Qi; Wang, Feng; Pascucci, Valerio; Hansen, Charles D.; Johnson, Chris R. (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      We present a general high-performance technique for ray tracing generalized tube primitives. Our technique efficiently supports tube primitives with fixed and varying radii, general acyclic graph structures with bifurcations, ...
    • Scalable Ray Tracing Using the Distributed FrameBuffer 

      Usher, Will; Wald, Ingo; Amstutz, Jefferson; Günther, Johannes; Brownlee, Carson; Pascucci, Valerio (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Image- and data-parallel rendering across multiple nodes on high-performance computing systems is widely used in visualization to provide higher frame rates, support large data sets, and render data in situ. Specifically ...
    • Analysis of Long Molecular Dynamics Simulations Using Interactive Focus+Context Visualization 

      Byška, Jan; Trautner, Thomas; Marques, Sérgio M.; Damborský, Jiří; Kozlíková, Barbora; Waldner, Manuela (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Analyzing molecular dynamics (MD) simulations is a key aspect to understand protein dynamics and function. With increasing computational power, it is now possible to generate very long and complex simulations, which are ...
    • Interactive Volumetric Visual Analysis of Glycogen-derived Energy Absorption in Nanometric Brain Structures 

      Agus, Marco; Calì, Corrado; Al-Awami, Ali K.; Gobbetti, Enrico; Magistretti, Pierre J.; Hadwiger, Markus (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Digital acquisition and processing techniques are changing the way neuroscience investigation is carried out. Emerging applications range from statistical analysis on image stacks to complex connectomics visual analysis ...
    • A Geometric Optimization Approach for the Detection and Segmentation of Multiple Aneurysms 

      Lawonn, Kai; Meuschke, Monique; Wickenhöfer, Ralph; Preim, Bernhard; Hildebrandt, Klaus (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      We present a method for detecting and segmenting aneurysms in blood vessels that facilitates the assessment of risks associated with the aneurysms. The detection and analysis of aneurysms is important for medical diagnosis ...
    • Visual-Interactive Preprocessing of Multivariate Time Series Data 

      Bernard, Jürgen; Hutter, Marco; Reinemuth, Heiko; Pfeifer, Hendrik; Bors, Christian; Kohlhammer, Jörn (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Pre-processing is a prerequisite to conduct effective and efficient downstream data analysis. Pre-processing pipelines often require multiple routines to address data quality challenges and to bring the data into a usable ...
    • ChronoCorrelator: Enriching Events with Time Series 

      van Dortmont, Martijn; Elzen, Stef van den; Wijk, Jarke J. van (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Event sequences and time series are widely recorded in many application domains; examples are stock market prices, electronic health records, server operation and performance logs. Common goals for recording are monitoring, ...
    • Bridging the Data Analysis Communication Gap Utilizing a Three-Component Summarized Line Graph 

      Yau, Calvin; Karimzadeh, Morteza; Surakitbanharn, Chittayong; Elmqvist, Niklas; Ebert, David (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Communication-minded visualizations are designed to provide their audience-managers, decision-makers, and the public-with new knowledge. Authoring such visualizations effectively is challenging because the audience often ...
    • Examining Implicit Discretization in Spectral Schemes 

      Quinan, P. Samuel; Padilla, Lace M. K.; Creem-Regehr, Sarah H.; Meyer, Miriah (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Two of the primary reasons rainbow color maps are considered ineffective trace back to the idea that they implicitly discretize encoded data into hue-based bands, yet no research addresses what this discretization looks ...
    • Visualization Support for Developing a Matrix Calculus Algorithm: A Case Study 

      Giesen, Joachim; Klaus, Julien; Laue, Sören; Schreck, Ferdinand (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      The development of custom interactive visualization tools for specific domains and applications has been made much simpler recently by a surge of visualization tools, libraries and frameworks. Most of these tools are ...
    • Robust Extraction and Simplification of 2D Symmetric Tensor Field Topology 

      Jankowai, Jochen; Wang, Bei; Hotz, Ingrid (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      In this work, we propose a controlled simplification strategy for degenerated points in symmetric 2D tensor fields that is based on the topological notion of robustness. Robustness measures the structural stability of the ...
    • Towards Glyphs for Uncertain Symmetric Second-Order Tensors 

      Gerrits, Tim; Rössl, Christian; Theisel, Holger (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Measured data often incorporates some amount of uncertainty, which is generally modeled as a distribution of possible samples. In this paper, we consider second-order symmetric tensors with uncertainty. In the 3D case, ...
    • Visualization of Equivalence in 2D Bivariate Fields 

      Zheng, Boyan; Rieck, Bastian; Leitte, Heike; Sadlo, Filip (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      In this paper, we show how the equivalence property leads to the novel concept of equivalent regions in mappings from Rn to Rn. We present a technique for obtaining these regions both in the domain and the codomain of such ...
    • An Interactive Visualization System for Large Sets of Phase Space Trajectories 

      Neuroth, Tyson; Sauer, Franz; Ma, Kwan-Liu (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      We introduce a visual analysis system with GPU acceleration techniques for large sets of trajectories from complex dynamical systems. The approach is based on an interactive Boolean combination of subsets into a Focus+Context ...
    • Robust Reference Frame Extraction from Unsteady 2D Vector Fields with Convolutional Neural Networks 

      Kim, Byungsoo; Günther, Tobias (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Robust feature extraction is an integral part of scientific visualization. In unsteady vector field analysis, researchers recently directed their attention towards the computation of near-steady reference frames for vortex ...
    • A Visual Tool for the Analysis of Algorithms for Tomographic Fiber Reconstruction in Materials Science 

      Fröhler, Bernhard; Elberfeld, Tim; Möller, Torsten; Hege, Hans-Christian; Weissenböck, Johannes; De Beenhouwer, Jan; Sijbers, Jan; Kastner, Johann; Heinzl, Christoph (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      We present visual analysis methods for the evaluation of tomographic fiber reconstruction algorithms by means of analysis, visual debugging and comparison of reconstructed fibers in materials science. The methods are ...
    • The Dependent Vectors Operator 

      Hofmann, Lutz; Sadlo, Filip (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      In this paper, we generalize the parallel vectors operator due to Peikert and Roth to arbitrary dimension, i.e., to four-dimensional fields and beyond. Whereas the original operator tested for parallelism of two (derived) ...
    • Visualizing for the Non-Visual: Enabling the Visually Impaired to Use Visualization 

      Choi, Jinho; Jung, Sanghun; Park, Deok Gun; Choo, Jaegul; Elmqvist, Niklas (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      The majority of visualizations on the web are still stored as raster images, making them inaccessible to visually impaired users. We propose a deep-neural-network-based approach that automatically recognizes key elements ...
    • SurgeryCuts: Embedding Additional Information in Maps without Occluding Features 

      Angelini, Marco; Buchmüller, Juri; Keim, Daniel A.; Meschenmoser, Philipp; Santucci, Giuseppe (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Visualizing contextual information to a map often comes at the expense of overplotting issues. Especially for use cases with relevant map features in the immediate vicinity of an information to add, occlusion of the relevant ...