EGPGV08: Eurographics Symposium on Parallel Graphics and Visualization
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Browsing EGPGV08: Eurographics Symposium on Parallel Graphics and Visualization by Subject "Categories and Subject Descriptors (according to ACM CCS): I.3.1 [Computer Graphics]: Parallel processing, I.3.1 [Computer Graphics]: Graphics processors"
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Item Acceleration of Opacity Correction Mechanisms for Over-sampled Volume Ray Casting(The Eurographics Association, 2008) Lee, Jong Kwan; Newman, Timothy S.; Jean M. Favre and Kwan-Liu MaTechniques for accelerated opacity correction for over-sampled volume ray casting on commodity hardware are described. The techniques exploit processing capabilities of programmable GPUs and cluster computers. The GPU-based technique follows a fine-grained parallel approach that exposes to the GPU the inherent parallelism in the opacity correction process. The cluster computation techniques follow less finely-granular data parallel approaches that allow exploitation of computational resources with minimal inter-CPU communication. The performance improvements offered by the accelerated approaches over opacity correction on a single CPU are also exhibited for real volumetric datasets.