Accelerated Composition for Parallel Volume Rendering

• HIRAI Tetu

  the Faculty of Engineering, Hokkaido University

• YAMAMOTO Tsuyoshi

  the Computing Center, Hokkaido University

抄録

We describe an algorithm for efficiently compositing partial images generated during parallel volume rendering on a distributed memory parallel computer. In this object space partitioning algorithm, each PE is assigned to several subvolumes where each subvolume has a corresponding local frame buffer. After volume rendering is performed independently for each subvolume, the partial images stored in the local frame buffers are combined to generate a complete image. During this compositing process, the communication of partial image data between the PEs is kept minimal by assigning PEs to subvolumes in an interleaved manner. This assignment makes possible a reduction in communication in the axis direction in which there is the most communication. Experimental results indicate that a 9% to 35% reduction in the total rendering time can be attained with no additional data structures and no memory overhead.

収録刊行物

• IEICE transactions on information and systems

  IEICE transactions on information and systems 81 (1), 81-87, 1998-01-25

  一般社団法人電子情報通信学会

キーワード

• medical imaging
• computer graphics
• parallel volume rendering
• compositing
• distributed memory

詳細情報

• CRID: 1573668927256144384
• NII論文ID: 110003219765
• NII書誌ID: AA10826272
• ISSN: 09168532
• 本文言語コード: en
• データソース種別:
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