Proceedings 1999 IEEE Parallel Visualization and Graphics Symposium (Cat. No.99EX381)

25-26 Oct. 1999

Filter Results

Displaying Results 1 - 14 of 14
  • Proceedings 1999 IEEE Parallel Visualization and Graphics Symposium (Cat. No.99EX381)

    Publication Year: 1999
    Request permission for commercial reuse | PDF file iconPDF (106 KB)
    Freely Available from IEEE
  • Parallel lumigraph reconstruction

    Publication Year: 1999, Page(s):7 - 113
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (917 KB)

    Presents three techniques for reconstructing lumigraphs/lightfields on commercial ccNUMA parallel distributed shared memory computers. The first method is a parallel extension of the software-based lightfield method proposed by M. Levoy and P. Hanrahan (1996). This expands the ray/two-plane intersection test along the film plane, which effectively becomes scan conversion. The second method extends... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Parallel visualization of large-scale aerodynamics calculations: a case study on the Cray T3E

    Publication Year: 1999, Page(s):15 - 115
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4012 KB)

    This paper reports the performance of a parallel volume rendering algorithm for visualizing a large-scale unstructured-grid dataset produced by a three-dimensional aerodynamics simulation. This dataset, containing over 18 million tetrahedra, allows us to extend our performance results to a problem which is more than 30 times larger than the one we examined previously. This high resolution dataset ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Hybrid scheduling for parallel rendering using coherent ray tasks

    Publication Year: 1999, Page(s):21 - 28
    Cited by:  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (516 KB)

    Parallelising ray tracing with a data parallel approach allows rendering of arbitrarily large models, but the inherent load imbalances may lead to severe inefficiencies. To compensate for the uneven load distribution, demand-driven tasks may be split off and scheduled to processors that are less busy. We propose a hybrid scheduling algorithm which brings tasks and data together according to cohere... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Exploiting frame coherence with the temporal depth buffer in a distributed computing environment

    Publication Year: 1999, Page(s):29 - 116
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (516 KB)

    We introduce the notion of a parallel temporal depth buffer (or t-buffer) to speed up the rendering process for ray traced animations. The t-buffer is a conceptually simple data structure which stores knowledge about coherent pixel values across the duration of an animation. Through the use of this information, we can potentially avoid recomputing a significant number of redundant pixel values and... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Transparent distributed processing for rendering

    Publication Year: 1999, Page(s):39 - 117
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4056 KB)

    Rendering, in particular the computation of global illumination, uses computationally very demanding algorithms. As a consequence many researchers have looked into speeding up the computation by distributing it over a number of computational units. However, in almost all cases did they completely redesign the relevant algorithms in order to achieve high efficiency for the particular distributed or... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Web based collaborative visualization of distributed and parallel simulation

    Publication Year: 1999, Page(s):47 - 54
    Cited by:  Papers (7)  |  Patents (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1527 KB)

    This paper presents an interaction model to support collaborative scientific visualization. Relevant prior work is presented to contextualize the model and its import. An implementation of the model is presented within a collaborative system that supports flexible collaborative coupling of multi-user applications. An example application is presented to demonstrate the capabilities of the model. Th... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Scalable distributed visualization using off-the-shelf components

    Publication Year: 1999, Page(s):55 - 118
    Cited by:  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1764 KB)

    This paper describes a visualization architecture for scalable computer systems. The architecture is currently being prototyped for use in Beowulf-class clustered systems. A set of OpenGL frame buffers are driven in parallel by a set of CPUs. The visualization architecture merges the contents of these frame buffers by user programmable associative and commutative combining operations. The system h... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Interactive volume segmentation with the PAVLOV architecture

    Publication Year: 1999, Page(s):61 - 119
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB)

    We propose a new paradigm for interactive volume visualization which allows enhanced exploration of datasets through the use of real-time volume processing (e.g., segmentation) tightly coupled with rendering. We show examples of how this paradigm supports a new way of examining a dataset by providing interactive visual feedback to segmentation parameter adjustment. We have developed a hardware co-... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On the partitionability of hierarchical radiosity

    Publication Year: 1999, Page(s):69 - 78
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (274 KB)

    The hierarchical radiosity algorithm (HRA) is one of the most efficient sequential algorithms for physically based rendering. Unfortunately, it is hard to implement in parallel. There exist fairly efficient shared-memory implementations but things get worse in a distributed memory (DM) environment. We examine the structure of the HRA in a graph partitioning setting. Various measurements performed ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Overlapping multi-processing and graphics hardware acceleration: performance evaluation

    Publication Year: 1999, Page(s):79 - 120
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1628 KB)

    Recently, multi-processing has been shown to deliver good performance in rendering. However, in some applications, processors spend too much time executing tasks that could be more efficiently done through intensive use of new graphics hardware. We present a novel solution combining multi-processing and advanced graphics hardware, where graphics pipelines are used both for classical visualization ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Dynamic view-dependent partitioning of structured grids with complex boundaries for object-order rendering techniques

    Publication Year: 1999, Page(s):89 - 121
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (555 KB)

    Object-order rendering techniques present an attractive approach to run-time visualization of structured grid data, particularly when combined with a parallel rendering paradigm such as image composition. The ability of this combination to exploit hardware exceeds that of parallel image order methods. However, certain configurations of grid boundaries prevent composition from being performed corre... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Parallel accelerated isocontouring for out-of-core visualization

    Publication Year: 1999, Page(s):97 - 122
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1375 KB)

    We introduce a scheme for static analysis that allows us to partition large geometric datasets at multiple levels of granularity to achieve both load balancing in parallel computations and minimal access to secondary memory in out-of-core computations. The idea is illustrated and fully exploited for the case of isosurface extraction, but extendible to a class of algorithms based on a small set of ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Author index

    Publication Year: 1999, Page(s): 105
    Request permission for commercial reuse | PDF file iconPDF (38 KB)
    Freely Available from IEEE