Now showing items 21-40 of 50

    • A Primal/ Dual Representation for Discrete Morse Complexes on Tetrahedral Meshes 

      Weiss, Kenneth; Iuricich, Federico; Fellegara, Riccardo; Floriani, Leila De (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      We consider the problem of computing discrete Morse and Morse-Smale complexes on an unstructured tetrahedral mesh discretizing the domain of a 3D scalar field. We use a duality argument to define the cells of the descending ...
    • Small Multiples, Large Singles: A New Approach for Visual Data Exploration 

      Elzen, Stef van den; Wijk, Jarke J. van (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      We present a novel visual exploration method based on small multiples and large singles for effective and efficient data analysis. Users are enabled to explore the state space by offering multiple alternatives from the ...
    • Visual Analysis of Set Relations in a Graph 

      Xu, Panpan; Du, Fan; Cao, Nan; Shi, Conglei; Zhou, Hong; Qu, Huamin (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Many applications can be modeled as a graph with additional attributes attached to the nodes. For example, a graph can be used to model the relationship of people in a social media website or a bibliographical dataset. ...
    • VisRuption: Intuitive and Efficient Visualization of Temporal Airline Disruption Data 

      Rosenthal, Paul; Pfeiffer, Linda; Müller, Nicholas H.; Ohler, Peter (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      The operation of an airline is a very complex task and disruptions to the planned operation can occur on very short notice. Already a small disruption like a delay of some minutes can cost the airline a tremendous amount ...
    • Visualizing Interchange Patterns in Massive Movement Data 

      Zeng, Wei; Fu, Chi-Wing; Arisona, Stefan Müller; Qu, Huamin (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Massive amount of movement data, such as daily trips made by millions of passengers in a city, are widely available nowadays. They are a highly valuable means not only for unveiling human mobility patterns, but also for ...
    • AmniVis - A System for Qualitative Exploration of Near-Wall Hemodynamics in Cerebral Aneurysms 

      Neugebauer, Mathias; Lawonn, Kai; Beuing, Oliver; Berg, Philipp; Janiga, Gabor; Preim, Bernhard (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      The qualitative exploration of near-wall hemodynamics in cerebral aneurysms provides important insights for risk assessment. For instance, a direct relation between complex flow patterns and aneurysm formation could be ...
    • Comparative Visualization of Tracer Uptake in In Vivo Small Animal PET/CT Imaging of the Carotid Arteries 

      Diepenbrock, Stefan; Hermann, Sven; Schäfers, Michael; Kuhlmann, Michael; Hinrichs, Klaus (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Cardiovascular diseases are the main cause of death in the western world. Medical research on atherosclerosis is therefore of great interest and a very active research topic. We present a visualization system that supports ...
    • Spatially Efficient Design of Annotated Metro Maps 

      Wu, Hsiang-Yun; Takahashi, Shigeo; Hirono, Daichi; Arikawa, Masatoshi; Lin, Chun-Cheng; Yen, Hsu-Chun (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Annotating metro maps with thumbnail photographs is a commonly used technique for guiding travelers. However, conventional methods usually suffer from small labeling space around the metro stations, especially when they ...
    • User-driven Feature Space Transformation 

      Mamani, Gladys M. H.; Fatore, Francisco M.; Nonato, Luis G.; Paulovich, Fernando V. (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Interactive visualization systems for exploring and manipulating high-dimensional feature spaces have experienced a substantial progress in the last few years. State-of-art methods rely on solid mathematical and computational ...
    • Continuous Representation of Projected Attribute Spaces of Multifields over Any Spatial Sampling 

      Molchanov, Vladimir; Fofonov, Alexey; Linsen, Lars (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      For the visual analysis of multidimensional data, dimension reduction methods are commonly used to project to a lower-dimensional visual space. In the context of multifields, i.e., volume data with a multidimensional ...
    • AOI Rivers for Visualizing Dynamic Eye Gaze Frequencies 

      Burch, Michael; Kull, Andreas; Weiskopf, Daniel (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      It is difficult to explore and analyze eye gaze trajectories for commonly applied visual task solution strategies because such data shows complex spatio-temporal structure. In particular, the traditional eye gaze plots of ...
    • Evaluating Isosurfaces with Level-set-based Information Maps 

      Wei, Tzu-Hsuan; Lee, Teng-Yok; Shen, Han-Wei (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      While isosurfaces have been widely used for scalar data visualization, it is often difficult to determine if the selected isosurfaces for visualization are sufficient to represent the entire scalar field. In this paper, ...
    • Visualizing Robustness of Critical Points for 2D Time-Varying Vector Fields 

      Wang, Bei; Rosen, Paul; Skraba, Primoz; Bhatia, Harsh; Pascucci, Valerio (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Analyzing critical points and their temporal evolutions plays a crucial role in understanding the behavior of vector fields. A key challenge is to quantify the stability of critical points: more stable points may represent ...
    • Vessel Visualization using Curvicircular Feature Aggregation 

      Mistelbauer, Gabriel; Morar, Anca; Varchola, Andrej; Schernthaner, Rüdiger; Baclija, Ivan; Köchl, Arnold; Kanitsar, Armin; Bruckner, Stefan; Gröller, Eduard (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Radiological investigations are common medical practice for the diagnosis of peripheral vascular diseases. Existing visualization methods such as Curved Planar Reformation (CPR) depict calcifications on vessel walls to ...
    • TAMRESH - Tensor Approximation Multiresolution Hierarchy for Interactive Volume Visualization 

      Suter, Susanne K.; Makhynia, Maxim; Pajarola, Renato (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Interactive visual analysis of large and complex volume datasets is an ongoing and challenging problem. We tackle this challenge in the context of state-of-the-art out-of-core multiresolution volume rendering by introducing ...
    • Gestaltlines 

      Brandes, Ulrik; Nick, Bobo; Rockstroh, Brigitte; Steffen, Astrid (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      We propose a general technique to visualize multivariate data sequences. It is based on a symbiotic combination of three powerful concepts from information visualization: sparklines, glyphs and gestalt theory. By visualizing ...
    • Scale-Stack Bar Charts 

      Hlawatsch, Marcel; Sadlo, Filip; Burch, Michael; Weiskopf, Daniel (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      It is difficult to create appropriate bar charts for data that cover large value ranges. The usual approach for these cases employs a logarithmic scale, which, however, suffers from issues inherent to its non-linear mapping: ...
    • A Visual Approach to Investigating Shared and Global Memory Behavior of CUDA Kernels 

      Rosen, Paul (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      We present an approach to investigate the memory behavior of a parallel kernel executing on thousands of threads simultaneously within the CUDA architecture. Our top-down approach allows for quickly identifying any significant ...
    • Synthetic Brainbows 

      Wan, Yong; Otsuna, Hideo; Hansen, Charles (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Brainbow is a genetic engineering technique that randomly colorizes cells. Biological samples processed with this technique and imaged with confocal microscopy have distinctive colors for individual cells. Complex cellular ...
    • Selecting Semantically-Resonant Colors for Data Visualization 

      Lin, Sharon; Fortuna, Julie; Kulkarni, Chinmay; Stone, Maureen; Heer, Jeffrey (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      We introduce an algorithm for automatic selection of semantically-resonant colors to represent data (e.g., using blue for data about ''oceans'', or pink for ''love''). Given a set of categorical values and a target color ...