Browsing VG05: Eurographics/IEEE VGTC Workshop on Volume Graphics 2005 by Title

Now showing items 1-20 of 22

    • 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 ...

    • 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) ...

    • End-to-End Data Reduction and Hardware Accelerated Rendering Techniques for Visualizing Time-Varying Non-uniform Grid Volume Data 

      Akiba, Hiroshi; Ma, Kwan-Liu; Clyne, John (The Eurographics Association, 2005)
      We present a systematic approach for direct volume rendering terascale-sized data that are time-varying, and possibly non-uniformly sampled, using only a single commodity graphics PC. Our method employs a data reduction ...

    • An Evaluation of Using Real-time Volumetric Display of 3D Ultrasound Data for Intracardiac Catheter Manipulation Tasks 

      Wang, Aaron S.; Narayan, Girish; Kao, David; Liang, David (The Eurographics Association, 2005)
      The enthusiasm for novel, minimally invasive, catheter based intracardiac procedures has highlighted the need to provide accurate, real-time, anatomically based image guidance to decrease complications, improve precision, ...

    • GPU Accelerated Image Aligned Splatting 

      Neophytou, Neophytos; Mueller, Klaus (The Eurographics Association, 2005)
      Splatting is a popular technique for volume rendering, where voxels are represented by Gaussian kernels, whose pre-integrated footprints are accumulated to form the image. Splatting has been mainly used to render pre-shaded ...

    • GPU-based Object-Order Ray-Casting for Large Datasets 

      Hong, Wei; Qiu, Feng; Kaufman, Arie (The Eurographics Association, 2005)
      We propose a GPU-based object-order ray-casting algorithm for the rendering of large volumetric datasets, such as the Visible Human CT datasets. A volumetric dataset is decomposed into small sub-volumes, which are then ...

    • An Integrated Pipeline of Decompression, Simplification and Rendering for Irregular Volume Data 

      Yang, Chuan-Kai; Chiueh, Tzi-Cker (The Eurographics Association, 2005)
      Very large irregular-grid volume data sets are typically represented as tetrahedral mesh and require substantial disk I/O and rendering computation. One effective way to reduce this demanding resource requirement is ...

    • Introducing Topological Attributes for Objective-Based Visualization of Simulated Datasets 

      Takeshima, Yuriko; Takahashi, Shigeo; Fujishiro, Issei; Nielson, Gregory M. (The Eurographics Association, 2005)
      Recent development in the design of multi-dimensional transfer functions allows us to automatically generate comprehensible visualization images of given volumes by taking into account local features such as differentials ...

    • iSBVR: Isosurface-aided Hardware Acceleration Techniques for Slice-Based Volume Rendering 

      Xue, Daqing; Zhang, Caixia; Crawfis, Roger (The Eurographics Association, 2005)
      In this paper, we examine the performance of the early z-culling feature on current high-end commodity graphics cards and present an isosurface-aided hardware acceleration algorithm for slice-based volume rendering (iSBVR) ...

    • A Multiresolution Volume Rendering Framework for Large-Scale Time-Varying Data Visualization 

      Wang, Chaoli; Gao, Jinzhu; Li, Liya; Shen, Han-Wei (The Eurographics Association, 2005)
      We present a new parallel multiresolution volume rendering framework for large-scale time-varying data visualization using the wavelet-based time-space partitioning (WTSP) tree. Utilizing the wavelet transform, a largescale ...

    • Representation of Objects with Sharp Details in Truncated Distance Fields 

      Novotný, Pavol; Srámek, Milos (The Eurographics Association, 2005)
      We present a new approach for voxelization of implicit solids which contain sharp details. If such objects are processed by common techniques, voxelization artifacts may appear, resulting, among others, in jaggy edges in ...

    • Robust Generation of Signed Distance Fields from Triangle Meshes 

      Bærentzen, J. Andreas (The Eurographics Association, 2005)
      A new method for robust generation of distance fields from triangle meshes is presented. Graphics hardware is used to accelerate a technique for generating layered depth images. From multiple layered depth images, a binary ...

    • Scaffolding-based Segmentation of Coronary Vascular Structures 

      Bartz, Dirk; Lakare, Sarang (The Eurographics Association, 2005)
      The coronary arteries are essential for the proper function of the human heart. However, they are generally difficult to segment in volume datasets separately from the other blood-filled cavities of the heart. The major ...

    • A Simple and Flexible Volume Rendering Framework for Graphics-Hardware-based Raycasting 

      Stegmaier, Simon; Strengert, Magnus; Klein, Thomas; Ertl, Thomas (The Eurographics Association, 2005)
      In this work we present a flexible framework for GPU-based volume rendering. The framework is based on a single pass volume raycasting approach and is easily extensible in terms of new shader functionality. We demonstrate ...

    • Simplification of Unstructured Tetrahedral Meshes by Point Sampling 

      Uesu, Dirce; Bavoil, Louis; Fleishman, Shachar; Shepherd, Jason; Silva, Cláudio T. (The Eurographics Association, 2005)
      Tetrahedral meshes are widely used in scientific computing for representing three-dimensional scalar, vector, and tensor fields. The size and complexity of some of these meshes can limit the performance of many visualization ...

    • A Simplified Model for Inhomogeneous Subsurface Scattering 

      Sharp, Richard; Machiraju, Raghu (The Eurographics Association, 2005)
      In recent years there has been considerable interest in modeling realistic subsurface light scattering in materials such as marble, human skin, or clouds. Many of these models provide a solution for the transport equation ...

    • Texturing and Hypertexturing of Volumetric Objects 

      Miller, Chris M.; Jones, Mark W. (The Eurographics Association, 2005)
      Texture mapping is an extremely powerful and flexible tool for adding complex surface detail to an object. This paper introduces a method of surface texturing and hypertexturing complex volumetric objects in real-time. We ...

    • Time-Varying Interval Volumes 

      Zhang, Caixia; Xue, Daqing; Crawfis, Roger; Wenger, Rephael (The Eurographics Association, 2005)
      In this paper, we study the interval segmentation and direct rendering of time-varying volumetric data to provide a more effective and interactive volume rendering of time-varying structured and unstructured grids. Our ...

    • A Virtual Reality Toolkit for the Diagnosis and Monitoring of Myocardial Infarctions 

      Ryan, John; O Sullivan, Carol; Bell, Christopher; Mulvihill, Niall (The Eurographics Association, 2005)
      We have developed a software system that takes standard electrocardiogram (ECG) input and interprets this input along with user-defined and automatically defined markers to diagnose myocardial infarctions (MI). These ...

    • Visualization of Time-Varying Volumetric Data using Differential Time-Histogram Table 

      Younesy, Hamid; Möller, Torsten; Carr, Hamish (The Eurographics Association, 2005)
      We introduce a novel data structure called Differential Time-Histogram Table (DTHT) for visualization of timevarying scalar data. This data structure only stores voxels that are changing between time-steps or during transfer ...