VG: Eurographics/IEEE VGTC Symposium on Volume Graphics: Recent submissions

Now showing items 81-100 of 134

    • The Design and Evaluation of a Pipelined Image Compositing Device for Massively Parallel Volume Rendering 

      Ogata1, Masato; Muraki, Shigeru; Liu, Xuezhen; Ma, Kwan-Liu (The Eurographics Association, 2003)
      An experimental study of software image compositing that we have carried out on a 512-node PC cluster shows the necessity of hardware compositing support to make possible real-time volume visualization scalable with large ...

    • OpenVL - The Open Volume Library 

      Lakare, Sarang; Kaufman, Arie (The Eurographics Association, 2003)
      OpenVL is a modular, extensible, and high performance library for handling volumetric datasets. It provides a standard, uniform, and easy to use API for accessing volumetric data. It allows the volumetric data to be laid ...

    • Real-Time Volume Manipulation 

      Singh, V.; Silver, D.; Cornea, N. (The Eurographics Association, 2003)
      In this paper, we describe a set of algorithms and an implementation (called VolEdit), for interactively manipulating 3D volumetric objects (datasets). The system utilizes skeletons, which allows users/animators to ...

    • Spatial Transfer Functions - A Unified Approach to Specifying Deformation in Volume Modeling and Animation 

      Chen, M.; Silvery, D.; Winter, A. S.; Singhy, V.; Cornea, N. (The Eurographics Association, 2003)
      In this paper, we introduce the concept of spatial transfer functions as a unified approach to volume modeling and animation. A spatial transfer function is a function that defines the geometrical transformation of a scalar ...

    • Rapid Emission Tomography Reconstruction 

      Chidlow, Ken; Möller, Torsten (The Eurographics Association, 2003)
      We present new implementations of the Maximum Likelihood Expectation Maximization (EM) algorithm and the related Ordered Subset EM (OSEM) algorithm. Our implementation is based on modern graphics hardware and achieves ...

    • 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. ...

    • Remote View-dependent Isosurface Visualization 

      Liu, Zhiyan; Li, Kai (The Eurographics Association, 2003)
      This paper presents a simple and effective protocol for remote isosurface visualization. The protocol breaks up the isosurface visualization pipeline at the 3D primitive stage for the server to send primitives to the client. ...

    • A Framework to Visualize and Interact with Multimodal Medical Images 

      Manssour, Isabel; Furuie, Sergio; Nedel, Luciana; Freitas, Carla (The Eurographics Association, 2001)
      The simultaneous use of images obtained from different sources is common in medical diagnosis. However, even though the quality of these images has been improving, the integration of multimodality data into a unique 3D ...

    • Real-Time Volume Rendering for Virtual ColonoscopyS 

      Li, Wei; Kaufman, Arie; Kreeger, Kevin (The Eurographics Association, 2001)
      We present a volume rendering system that is capable of generating high-quality images of large volumetric data (e.g., 512<sup>3</sup>) in real time (30 frames or more per second). The system is particularly ...

    • Translucent and Opaque Direct Volume Rendering for Virtual Endoscopy Applications 

      Meißner, Michael; Bartz, Dirk (The Eurographics Association, 2001)
      Virtual endoscopy applications frequently require the visual representation of several material interfaces to show the relevant data feature to the user. This requires the specification of complex transfer function which ...

    • EXOMIO: A 3D Simulator for External Beam Radiotherapy 

      Karangelis, Grigorios; Zamboglou, Nikolaos; Baltas, Dimos; Sakas, Georgios (The Eurographics Association, 2001)
      Simulators are medical devices used in the oncology clinics to perform the simulation procedure for the external beam radiotherapy treatment. Unlikely for a clinic to obtain a real Simulator is a high investment in terms ...

    • Hierarchical Perspective Volume Rendering Using Triangle Fans 

      Schussman, Greg; Max, Nelson (The Eurographics Association, 2001)
      We present a method of accelerated perspective volume rendering using cell projection, triangle fans, and a data hierarchy. The hierarchy allows mixed resolution rendering, greatly increasing speed. We utilize triangle ...

    • Volume Visualization of Payoff Regions for Derivatives Risk Management 

      Fei, Tan Toh; Prakash, Edmond Cyril (The Eurographics Association, 2001)
      Volume visualization of derivatives helps us discover risks, which hitherto have been elusive with traditional surface plots. In this paper, we would like to address the volatility visualization issue, which is one of the ...

    • Two-Pass Image and Volume Rotation 

      Chen, Baoquan; Kaufman, Arie (The Eurographics Association, 2001)
      We present a novel two-pass approach for both 2D image and 3D volume rotation. Each pass is a pseudo shear. However, it has a similar regularity as a pure shear in that a beam remains rigid while being sheared. Furthermore, ...

    • 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 ...

    • Correction of Voxelization Artifacts by Revoxelization 

      Sramek, Milos; Dimitrov, Leonid I.; Bærentzen, J. Andreas (The Eurographics Association, 2001)
      Earlier proposed antialiasing techniques for voxelization of geometric objects in some cases do not result in completely alias-free data and image renditions. This is often the case for some implicit solids and CSG trees. ...

    • Image-Based Rendering of Surfaces from Volume Data 

      Chen, Baoquan; Kaufman, Arie; Tang, Qingyu (The Eurographics Association, 2001)
      We present an image-based rendering technique to accelerate rendering of surfaces from volume data. We cache the fully volume rendered image (called keyview) and use it to generate novel views without ray-casting every ...

    • Segmentation of Biological Volume Datasets Using a Level-Set Framework 

      Whitaker, Ross; Breen, David; Museth, Ken; Soni, Neha (The Eurographics Association, 2001)
      This paper presents a framework for extracting surface models from a broad variety of volume datasets. These datasets are produced from standard 3D imaging devices, and are all noisy samplings of complex biological structures ...

    • Extracting Boundary Surface of Arbitrary Topology from Volumetric Datasets 

      Duan, Ye; Qin, Hong (The Eurographics Association, 2001)
      This paper presents a novel, powerful reconstruction algorithm that can recover correct shape geometry as well as its unknown topology from arbitrarily complicated volumetric datasets. The algorithm starts from a simple ...

    • Visualization of Labeled Segments Cross-Contour Surfaces 

      Tost, Dani; Puig, Anna (The Eurographics Association, 2001)
      Cross contour surfaces are composed of sets of planar contours. They are the natural output of surface extraction algorithms based on contouring features in parallel image slices of volume models. They are also suitable ...