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Title: Improvement of particle-based volume rendering for visualizing irregular volume data sets
Authors: Sakamoto, Naohisa  KAKEN_id
Kawamura, Takuma
Koyamada, Koji  kyouindb  KAKEN_id
Nozaki, Kazunori
Author's alias: 坂本, 尚久
河村, 拓馬
小山田, 耕二
Keywords: Hexahedral cells
Large-scale irregular volume datasets
Tetrahedral cells
Volume rendering
Issue Date: Feb-2010
Publisher: Elsevier
Journal title: Computers & Graphics
Volume: 34
Issue: 1
Start page: 34
End page: 42
Abstract: We present a technique for previewing large-scale irregular volume datasets using an improved particle-based volume rendering (PBVR) technique. Volume rendering of irregular grid volume data is considerably more complicated than that of regular grid data, since the sampling and compositing processes, which must be done in visibility order, are not straightforward. In our original PBVR, rendering involves generating and projecting sub-pixel-size, opaque, and emissive particles without visibility ordering. To make it easier to preview large-scale irregular volume datasets, we improve our original PBVR technique in two respects. The first is that we exploit its scalability to develop a cell-by-cell particle generation technique. The second is that we reduce the memory cost of the frame buffer using a pixel-by-pixel superimposing technique. To measure the effectiveness of our proposed method, we apply it to huge irregular volume datasets composed of 71 mega hexahedral cells or 1 giga tetrahedral cells.
Rights: c 2009 Elsevier Ltd. All rights reserved.
This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
URI: http://hdl.handle.net/2433/97984
DOI(Published Version): 10.1016/j.cag.2009.12.001
Appears in Collections:Journal Articles

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