Now showing items 1-20 of 54

    • Perceptual Evaluation of Ghosted View Techniques for the Exploration of Vascular Structures and Embedded Flow 

      Baer, Alexandra; Gasteiger, Rocco; Cunningham, Douglas; Preim, Bernhard (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      This paper presents three controlled perceptual studies investigating the visualization of the cerebral aneurysm anatomy with embedded flow visualization. We evaluate and compare the common semitransparent visualization ...
    • Automatic Registration of Multi-Projector Domes Using a Single Uncalibrated Camera 

      Sajadi, Behzad; Majumder, Aditi (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      In this paper we present a novel technique for easily calibrating multiple casually aligned projectors on spherical domes using a single uncalibrated camera. Using the prior knowledge of the display surface being a dome, ...
    • Topology-based Visualization of Transformation Pathways in Complex Chemical Systems 

      Beketayev, Kenes; Weber, G. H.; Haranczyk, M.; Bremer, P.-T.; Hlawitschka, M.; Hamann, B. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Studying transformation in a chemical system by considering its energy as a function of coordinates of the system's components provides insight and changes our understanding of this process. Currently, a lack of effective ...
    • Fast Extraction of High-quality Crease Surfaces for Visual Analysis 

      Barakat, Samer; Andrysco, N.; Tricoche, Xavier (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      We present a novel algorithm for the efficient extraction and visualization of high-quality ridge and valley surfaces from numerical datasets. Despite their rapidly increasing popularity in visualization, these so-called ...
    • Evaluation of the Visibility of Vessel Movement Features in Trajectory Visualizations 

      Willems, Niels; Wetering, Huub van de; Wijk, Jarke J. van (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      There are many visualizations that show the trajectory of a moving object to obtain insights in its behavior. In this user study, we test the performance of three of these visualizations with respect to three movement ...
    • Uncertainty-Aware Exploration of Continuous Parameter Spaces Using Multivariate Prediction 

      Berger, Wolfgang; Piringer, H.; Filzmoser, P.; Gröller, Eduard (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Systems projecting a continuous n-dimensional parameter space to a continuous m-dimensional target space play an important role in science and engineering. If evaluating the system is expensive, however, an analysis is ...
    • Topological Features in 2D Symmetric Higher-Order Tensor Fields 

      Schultz, Thomas (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      The topological structure of scalar, vector, and second-order tensor fields provides an important mathematical basis for data analysis and visualization. In this paper, we extend this framework towards higher-order tensors. ...
    • Visualising Errors in Animal Pedigree Genotype Data 

      Graham, Martin; Kennedy, Jessie; Paterson, Trevor; Law, Andy (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Genetic analysis of a breeding animal population involves determining the inheritance pattern of genotypes for multiple genetic markers across the individuals in the population pedigree structure. However, experimental ...
    • Stable Morse Decompositions for Piecewise Constant Vector Fields on Surfaces 

      Szymczak, Andrzej (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Numerical simulations and experimental observations are inherently imprecise. Therefore, most vector fields of interest in scientific visualization are known only up to an error. In such cases, some topological features, ...
    • Temporal Visualization of Boundary-based Geo-information Using Radial Projection 

      Drocourt, Y.; Borgo, Rita; Scharrer, K.; Murray, T.; Bevan, S. I.; Chen, M. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      This work is concerned with a design study by an interdisciplinary team on visualizing a 10-year record of seasonal and inter-annual changes in frontal position (advance/retreat) of nearly 200 marine terminating glaciers ...
    • Progressive Splatting of Continuous Scatterplots and Parallel Coordinates 

      Heinrich, Julian; Bachthaler, S.; Weiskopf, Daniel (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Continuous scatterplots and parallel coordinates are used to visualize multivariate data defined on a continuous domain. With the existing techniques, rendering such plots becomes prohibitively slow, especially for large ...
    • PaperVis: Literature Review Made Easy 

      Chou, Jia -Kai; Yang, C. -K. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Reviewing literatures for a certain research field is always important for academics. One could use Google-like information seeking tools, but oftentimes he/she would end up obtaining too many possibly related papers, as ...
    • A Gradient-Based Comparison Measure for Visual analysis of Multifield Data 

      Nagaraj, Suthambhara; Natarajan, Vijay; Nanjundiah, Ravi S. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      We introduce a multifield comparison measure for scalar fields that helps in studying relations between them. The comparison measure is insensitive to noise in the scalar fields and to noise in their gradients. Further, ...
    • Anatomy-Guided Multi-Level Exploration of Blood Flow in Cerebral Aneurysms 

      Neugebauer, Mathias; Janiga, Gabor; Beuing, Oliver; Skalej, Martin; Preim, Bernhard (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      For cerebral aneurysms, the ostium, the area of inflow, is an important anatomic landmark, since it separates the pathological vessel deformation from the healthy parent vessel. A better understanding of the inflow ...
    • Flowstrates: An Approach for Visual Exploration of Temporal Origin-Destination Data 

      Boyandin, Ilya; Bertini, Enrico; Bak, Peter; Lalanne, Denis (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Many origin-destination datasets have become available in the recent years, e.g. flows of people, animals, money, material, or network traffic between pairs of locations, but appropriate techniques for their exploration ...
    • In-situ Sampling of a Large-Scale Particle Simulation for Interactive Visualization and Analysis 

      Woodring, Jonathan; Ahrens, J.; Figg, J.; Wendelberger, J.; Habib, S.; Heitmann, K. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      We describe a simulation-time random sampling of a large-scale particle simulation, the RoadRunner Universe MC3 cosmological simulation, for interactive post-analysis and visualization. Simulation data generation rates ...
    • Assisted Descriptor Selection Based on Visual Comparative Data Analysis 

      Bremm, Sebastian; Landesberger, Tatiana von; Bernard, Jürgen; Schreck, Tobias (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Exploration and selection of data descriptors representing objects using a set of features are important components in many data analysis tasks. Usually, for a given dataset, an optimal data description does not exist, as ...
    • Efficient Parallel Vectors Feature Extraction from Higher-Order Data 

      Pagot, Christian; Osmari, D.; Sadlo, F.; Weiskopf, Daniel; Ertl, Thomas; Comba, J. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      The parallel vectors (PV) operator is a feature extraction approach for defining line-type features such as creases (ridges and valleys) in scalar fields, as well as separation, attachment, and vortex core lines in vector ...
    • An Evaluation of Visualization Techniques to Illustrate Statistical Deformation Models 

      Caban, Jesus J.; Rheingans, Penny; Yoo, T. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      As collections of 2D/3D images continue to grow, interest in effective ways to visualize and explore the statistical morphological properties of a group of images has surged. Recently, deformation models have emerged as ...
    • Pathway Preserving Representation of Metabolic Networks 

      Lambert, Antoine; Dubois, J.; Bourqui, Romain (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Improvements in biological data acquisition and genomes sequencing now allow to reconstruct entire metabolic networks of many living organisms. The size and complexity of these networks prohibit manual drawing and thereby ...