Now showing items 1-20 of 45

    • Exploratory Visualization of Animal Kinematics Using Instantaneous Helical Axes 

      Keefe, Daniel F.; O'Brien, Trevor M.; Baier, David B.; Gatesy, Stephen M.; Brainerd, Elizabeth L.; Laidlaw, David H. (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      We present novel visual and interactive techniques for exploratory visualization of animal kinematics using instantaneous helical axes (IHAs). The helical axis has been used in orthopedics, biomechanics, and structural ...
    • 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 ...
    • 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 ...
    • Interactive Exploratory Visualization of 2D Vector Fields 

      Isenberg, Tobias; Everts, Maarten H.; Grubert, Jens; Carpendale, Sheelagh (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      In this paper we present several techniques to interactively explore representations of 2D vector fields. Through a set of simple hand postures used on large, touch-sensitive displays, our approach allows individuals to ...
    • 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, ...
    • Illustrative Hybrid Visualization and Exploration of Anatomical and Functional Brain Data 

      Jainek, Werner M.; Born, Silvia; Bartz, Dirk; Straßer, Wolfgang; Fischer, Jan (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Common practice in brain research and brain surgery involves the multi-modal acquisition of brain anatomy and brain activation data. These highly complex three-dimensional data have to be displayed simultaneously in order ...
    • Lagrangian Visualization of Flow-Embedded Surface Structures 

      Garth, Christoph; Wiebel, Alexander; Tricoche, Xavier; Joy, Ken; Scheuermann, Gerik (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      The notions of Finite-Time Lyapunov Exponent (FTLE) and Lagrangian Coherent Structures provide a strong framework for the analysis and visualization of complex technical flows. Their definition is simple and intuitive, and ...
    • Quality Isosurface Mesh Generation Using an Extended Marching Cubes Lookup Table 

      Raman, Sundaresan; Wenger, Rephael (The Eurographics Association and Blackwell Publishing Ltd., 2008)
    • 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 ...
    • Towards Closing the Analysis Gap: Visual Generation of Decision Supporting Schemes from Raw Data 

      May, Thorsten; Kohlhammer, Jörn (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      The derivation, manipulation and verification of analytical models from raw data is a process which requires a transformation of information across different levels of abstraction. We introduce a concept for the coupling ...
    • 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. ...
    • Interaction-Dependent Semantics for Illustrative Volume Rendering 

      Rautek, Peter; Bruckner, Stefan; Gröller, M. Eduard (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      In traditional illustration the choice of appropriate styles and rendering techniques is guided by the intention of the artist. For illustrative volume visualizations it is difficult to specify the mapping between the 3D ...
    • Evaluation of Illustration-inspired Techniques for Time-varying Data Visualization 

      Joshi, Alark; Rheingans, Penny (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Illustration-inspired techniques have provided alternative ways to visualize time-varying data. Techniques such as speedlines, flow ribbons, strobe silhouettes and opacity-based techniques provide temporal context to the ...
    • Interactive Visualization of Multimodal Volume Data for Neurosurgical Tumor Treatment 

      Rieder, Christian; Ritter, Felix; Raspe, Matthias; Peitgen, Heinz-Otto (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      We present novel interactive methods for the visualization of multimodal volume data as used in neurosurgical therapy planning. These methods allow surgeons to explore multimodal volumes and focus on functional data and ...
    • Geometry-driven Visualization of Microscopic Structures in Biology 

      Mosaliganti, Kishore; Machiraju, Raghu; Huang, Kun; Leone, Gustavo (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      At a microscopic resolution, biological structures are composed of cells, red blood corpuscles (RBCs), cytoplasm and other microstructural components. There is a natural pattern in terms of distribution, arrangement and ...
    • Navigation and Exploration of Interconnected Pathways 

      Streit, Marc; Kalkusch, M.; Kashofer, K.; Schmalstieg, Dieter (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Visualizing pathways, i. e. models of cellular functional networks, is a challenging task in computer assisted biomedicine. Pathways are represented as large collections of interwoven graphs, with complex structures present ...
    • 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 ...
    • Visual Analysis and Semantic Exploration of Urban LIDAR Change Detection 

      Butkiewicz, Thomas; Chang, Remco; Wartell, Zachary; Ribarsky, William (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Many previous approaches to detecting urban change from LIDAR point clouds interpolate the points into rasters, perform pixel-based image processing to detect changes, and produce 2D images as output. We present a method ...
    • 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 ...
    • A Screen Space Quality Method for Data Abstraction 

      Johansson, Jimmy; Cooper, Matthew (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      The rendering of large data sets can result in cluttered displays and non-interactive update rates, leading to time consuming analyses. A straightforward solution is to reduce the number of items, thereby producing an ...