Now showing items 1-20 of 134

    • 3D Reconstruction of Emission and Absorption in Planetary Nebulae 

      Lintu, Andrei; Lensch, Hendrik P. A.; Magnor, Marcus; El-Abed, Sascha; Seidel, Hans-Peter (The Eurographics Association, 2007)
      This paper addresses the problem of reconstructing the 3D structure of planetary nebulae from 2D observations. Assuming axial symmetry, our method jointly reconstructs the distribution of dust and ionized gas in the nebulae ...
    • Accelerated Light Propagation Through Participating Media 

      Lee, Richard; O'Sullivan, Carol (The Eurographics Association, 2007)
      Monte Carlo path tracing is a simple and effective way to solve the volume rendering equation. However, propagating light paths through participating media can be very costly because of the need to simulate potentially ...
    • Accelerated, High-Quality Refraction Computations for Volume Graphics 

      Li, Shengying; Mueller, Klaus (The Eurographics Association, 2005)
      We present an efficient framework for the high-quality rendering of discretely sampled surface-based objects with refractive effects. This requires an accurate estimation of the refraction coefficients, paired with efficient ...
    • Accelerating Volume Raycasting using Occlusion Frustums 

      Mensmann, Jörg; Ropinski, Timo; Hinrichs, Klaus (The Eurographics Association, 2008)
      GPU-based volume raycasting allows to produce high quality renderings on current graphics hardware. The use of such raycasters is on the rise due to their inherent flexibility as well as the advances in hardware performance ...
    • Accelerating Voxel-Based Terrain Rendering with Keyframe-Free Image-Based Rendering 

      Qin, Jiafa; MingWan,; Qu, Huamin; Kaufman, Arie (The Eurographics Association, 2001)
      We propose a voxel-based terrain rendering method which incorporates a novel keyframe-free image-based rendering algorithm and a new heuristic ray coherence raycasting algorithm. The current image is generated by warping ...
    • Accuracy-Based Sampling and Reconstruction with Adaptive Grid for Parallel Hierarchical Tetrahedrization 

      T.Tanaka, Hiromi; Takama, Yasufumi; Wakabayashi, Hiroki (The Eurographics Association, 2003)
      Recent advances in volume scanning techniques have made the task of acquiring volume data of 3-D objects easier and more accurate. Since the quantity of such acquired data is generally very large, a volume model capable ...
    • Adaptive Sampling and Rendering of Fluids on the GPU 

      Zhang, Yanci; Solenthaler, Barbara; Pajarola, Renato (The Eurographics Association, 2008)
      In this paper, we propose a novel GPU-friendly algorithm for the Smoothed Particle Hydrodynamics (SPH) simulation for weakly compressible fluids. The major goal of our algorithm is to implement a GPU-based SPH simulation ...
    • Adaptive Sampling in Single Pass, GPU-based Raycasting of Multiresolution Volumes 

      Ljung, Patric (The Eurographics Association, 2006)
      This paper presents a novel direct volume rendering technique for adaptive object- and image-space sampling density of multiresolution volumes. The raycasting is implemented entirely on the GPU in a single pass fragment ...
    • Advanced Light Material Interaction for Direct Volume Rendering 

      Lindemann, Florian; Ropinski, Timo (The Eurographics Association, 2010)
      In this paper we present a heuristic approach for simulating advanced light material interactions in the context of interactive volume rendering. In contrast to previous work, we are able to incorporate complex material ...
    • Applications of Optimal Sampling Lattices for Volume Acquisition via 3D Computed Tomography 

      Xu, Fang; Mueller, Klaus (The Eurographics Association, 2007)
      There has been mounting evidence that the familiar Cartesian lattices, while convenient for signal processing and representation, are sub-optimal when it comes to signal fidelity. More suitable in this respect are optimal ...
    • An Architecture For Interactive Tetrahedral Volume Rendering 

      King, Davis; Wittenbrink, Craig M.; Wolters, Hans J. (The Eurographics Association, 2001)
      We present a new architecture for interactive unstructured volume rendering. Our system moves all the computations necessary for order-independent transparency and volume scan conversion from the CPU to the graphics hardware, ...
    • Automatic Feature Modeling Techniques for Volume Segmentation Applications 

      Huang, Runzhen; Yu, Hongfeng; Ma, Kwan-Liu; Staadt, Oliver (The Eurographics Association, 2007)
      In many volume segmentation and visualization tasks, the ability to correctly identify the boundary surface of each volumetric feature of interest in the data is desirable. This surface can be used in subsequent quantitative ...
    • Capture and Review of Interactive Volumetric Manipulations for Surgical Training 

      Kerwin, Thomas; Shen, Han-Wei; Stredney, Don (The Eurographics Association, 2006)
      In this paper, we present a system to capture efficiently a given user s interaction with a simulation system involving the procedural removal of material inside a volume, and to allow for a full 3D, lossless reviewing of ...
    • Cell Projection of Convex Polyhedra 

      Roettger, Stefan; Ertl, Thomas (The Eurographics Association, 2003)
      Finite element methods commonly use unstructured grids as the computational domain. As a matter of fact, the volume visualization of these unstructured grids is a time consuming task. Here, the fastest known object order ...
    • Chronovolumes: A Direct Rendering Technique for Visualizing Time-Varying Data 

      Woodring, Jonathan; Shen, Han-Wei (The Eurographics Association, 2003)
      We present a new method for displaying time varying volumetric data. The core of the algorithm is an integration through time producing a single view volume that captures the essence of multiple time steps in a sequence. ...
    • Combining Point Clouds and Volume Objects in Volume Scene Graphs 

      Chen, Min (The Eurographics Association, 2005)
      This paper describes an extension to the technical framework of Constructive Volume Geometry (CVG) in order to accommodate point clouds in volume scene graphs. It introduces the notion of point-based volume object (PBVO) ...
    • Complementary Shape Comparison with Additional Properties 

      Zhang, Xiaoyu (The Eurographics Association, 2006)
      We present an algorithm for comparing 3D shapes by considering their pockets in the complementary space. The pockets of a closed compact surface can be represented by a 3D volumetric function. Multi-resolution dual contour ...
    • Concurrent Volume Visualization of Real-Time fMRI 

      Nguyen, Tan Khoa; Eklund, Anders; Ohlsson, Henrik; Hernell, Frida; Ljung, Patric; Forsell, Camilla; Andersson, Mats; Knutsson, Hans; Ynnerman, Anders (The Eurographics Association, 2010)
      We present a novel approach to interactive and concurrent volume visualization of functional Magnetic Resonance Imaging (fMRI). While the patient is in the scanner, data is extracted in real-time using state-of-the-art ...
    • Contour Nest: A Two-dimensional Representation for Three-dimensional Isosurfaces 

      Mizuta, Shinobu; Ono, Toshiki; Matsuda, Tetsuya (The Eurographics Association, 2006)
      Visualization of the topological structure of isosurfaces such as exclusion and inclusion plays an important role in analyzing three-dimensional (3D) scalar data like medical images, especially in selecting isosurfaces to ...
    • Contour-Based Surface Reconstruction using Implicit Curve Fitting, and Distance Field Filtering and Interpolation 

      Marker, Jeffrey; Braude, Ilya; Museth, Ken; Breen, David (The Eurographics Association, 2006)
      This paper presents a volumetric approach to reconstructing a smooth surface from a sparse set of paral- lel binary contours, e.g. those produced via histologic imaging. It creates a volume dataset by interpolating 2D ...