Now showing items 7-26 of 52

    • Edge-Aware Volume Smoothing Using L0 Gradient Minimization 

      Wang, Qichao; Tao, Yubo; Lin, Hai (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      In volume visualization, noise in regions of homogeneous material and at boundaries between different materials poses a great challenge in extracting, analyzing and rendering features of interest. In this paper, we present ...
    • Efficient Contrast Effect Compensation with Personalized Perception Models 

      Mittelstädt, Sebastian; Keim, Daniel A. (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Color is one of the most effective visual variables and is frequently used to encode metric quantities. Contrast effects are considered harmful in data visualizations since they significantly bias our perception of colors. ...
    • Efficient Local Histogram Searching via Bitmap Indexing 

      Wei, Tzu-Hsuan; Chen, Chun-Ming; Biswas, Ayan (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Representing features by local histograms is a proven technique in several volume analysis and visualization applications including feature tracking and transfer function design. The efficiency of these applications, ...
    • Evaluating 2D Flow Visualization Using Eye Tracking 

      Ho, Hsin-Yang; Yeh, I-Cheng; Lai, Yu-Chi; Lin, Wen-Chieh; Cherng, Fu-Yin (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Flow visualization is recognized as an essential tool for many scientific research fields and different visualization approaches are proposed. Several studies are also conducted to evaluate their effectiveness but these ...
    • An Evaluation of the Impact of Visual Embellishments in Bar Charts 

      Skau, Drew; Harrison, Lane; Kosara, Robert (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      As data visualization becomes further intertwined with the field of graphic design and information graphics, small graphical alterations are made to many common chart formats. Despite the growing prevalence of these ...
    • An Exploratory Study of Data Sketching for Visual Representation 

      Walny, Jagoda; Huron, Samuel; Carpendale, Sheelagh (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Hand-drawn sketching on napkins or whiteboards is a common, accessible method for generating visual representations. This practice is shared by experts and non-experts and is probably one of the faster and more expressive ...
    • Exploring Traffic Dynamics in Urban Environments Using Vector-Valued Functions 

      Poco, Jorge; Doraiswamy, Harish; Vo, Huy. T.; Comba, João L. D.; Freire, Juliana; Silva, Cláudio T. (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      The traffic infrastructure greatly impacts the quality of life in urban environments. To optimize this infrastructure, engineers and decision makers need to explore traffic data. In doing so, they face two important ...
    • Feature-Driven Visual Analytics of Chaotic Parameter-Dependent Movement 

      Luboschik, Martin; Röhlig, Martin; Bittig, Arne T.; Andrienko, Natalia; Schumann, Heidrun; Tominski, Christian (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Analyzing movements in their spatial and temporal context is a complex task. We are additionally interested in understanding the movements' dependency on parameters that govern the processes behind the movement. We propose ...
    • Fiber Surfaces: Generalizing Isosurfaces to Bivariate Data 

      Carr, Hamish; Geng, Zhao; Tierny, Julien; Chattopadhyay, Amit; Knoll, Aaron (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Scientific visualization has many effective methods for examining and exploring scalar and vector fields, but rather fewer for bivariate fields. We report the first general purpose approach for the interactive extraction ...
    • Finite-Time Mass Separation for Comparative Visualizations of Inertial Particles 

      Günther, Tobias; Theisel, Holger (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      The visual analysis of flows with inertial particle trajectories is a challenging problem because time-dependent particle trajectories additionally depend on mass, which gives rise to an infinite number of possible ...
    • Frontmatter: EuroVis 2015 Eurographics Conference on Visualization 

      Carr, Hamish; Ma, Kwan-Liu; Santucci, Giuseppe (Eurographics Association, 2015)
    • GraphUnit: Evaluating Interactive Graph Visualizations Using Crowdsourcing 

      Okoe, Mershack; Jianu, Radu (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      We present GraphUnit, a framework and online service that automates the process of designing, running and analyzing results of controlled user studies of graph visualizations by leveraging crowdsourcing and a set of ...
    • Guided Volume Editing based on Histogram Dissimilarity 

      Karimov, Alexey; Mistelbauer, Gabriel; Auzinger, Thomas; Bruckner, Stefan (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Segmentation of volumetric data is an important part of many analysis pipelines, but frequently requires manual inspection and correction. While plenty of volume editing techniques exist, it remains cumbersome and errorprone ...
    • Interactive Fusion and Tracking For Multi-Modal Spatial Data Visualization 

      Elshehaly, Mai; Gracanin, Denis; Gad, Mohamed; Elmongui, Hicham G.; Matkovic, Kresimir (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Scientific data acquired through sensors which monitor natural phenomena, as well as simulation data that imitate time-identified events, have fueled the need for interactive techniques to successfully analyze and understand ...
    • Interactive Visual Analysis for Vehicle Detector Data 

      Chen, Yi-Cheng; Wang, Yu-Shuen; Lin, Wen-Chieh; Huang, Wei-Xiang; Lin, I-Chen (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Visualization of vehicle detection (VD) data is essential because the data play an important role in traffic control and policy development. Most previous works focus on visualizing trajectories obtained from global ...
    • Learning Probabilistic Transfer Functions: A Comparative Study of Classifiers 

      Soundararajan, Krishna Prasad; Schultz, Thomas (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Complex volume rendering tasks require high-dimensional transfer functions, which are notoriously difficult to design. One solution to this is to learn transfer functions from scribbles that the user places in the volumetric ...
    • Map-based Visualizations Increase Recall Accuracy of Data 

      Saket, Bahador; Scheidegger, Carlos; Kobourov, Stephen G.; Börner, Katy (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      We investigate the memorability of data represented in two different visualization designs. In contrast to recent studies that examine which types of visual information make visualizations memorable, we examine the effect ...
    • MoleCollar and Tunnel Heat Map Visualizations for Conveying Spatio-Temporo-Chemical Properties Across and Along Protein Voids 

      Byska, Jan; Jurcik, Adam; Gröller, M. Eduard; Viola, Ivan; Kozlikova, Barbora (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Studying the characteristics of proteins and their inner void space, including their geometry, physico-chemical properties and dynamics are instrumental for evaluating the reactivity of the protein with other small molecules. ...
    • Mosaic Drawings and Cartograms 

      Cano, Rafael G.; Buchin, Kevin; Castermans, Thom; Pieterse, Astrid; Sonke, Willem; Speckmann, Bettina (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Cartograms visualize quantitative data about a set of regions such as countries or states. There are several different types of cartograms and - for some - algorithms to automatically construct them exist. We focus on ...
    • A Multi-task Comparative Study on Scatter Plots and Parallel Coordinates Plots 

      Kanjanabose, Rassadarie; Abdul-Rahman, Alfie; Chen, Min (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Previous empirical studies for comparing parallel coordinates plots and scatter plots showed some uncertainty about their relative merits. Some of these studies focused on the task of value retrieval, where visualization ...