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Data-Parallel Volume Rendering with Adaptive Volume Subdivision

Kentaro SANO, Hiroyuki KITAJIMA, Hiroaki KOBAYASHI, Tadao NAKAMURA

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Summary :

A data-parallel processing approach is promising for real-time volume rendering because of the massive parallelism in volume rendering. In data-parallel volume rendering, local results processing elements(PEs) generate from allocated subvolumes are integrated to form a final image. Generally, the integration causes an overhead unavoidable in data-parallel volume rendering due to communications among PEs. This paper proposes a data-parallel shear-warp volume rendering algorithm combined with an adaptive volume subdivision method to reduce the communication overhead and improve processing efficiency. We implement the parallel algorithm on a message-passing multiprocessor system for performance evaluation. The experimental results show that the adaptive volume subdivision method can reduce the overhead and achieve higher efficiency compared with a conventional slab subdivision method.

Publication
IEICE TRANSACTIONS on Information Vol.E83-D No.1 pp.80-89
Publication Date
2000/01/25
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Computer Graphics

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