Title: New method for opacity correction in oversampled volume ray casting
Authors: Lee, Jong Kwan
Newman, Timothy S.
Citation: Journal of WSCG. 2007, vol. 15, no. 1-3, p. 1-8.
Issue Date: 2007
Publisher: Václav Skala - UNION Agency
Document type: článek
URI: http://wscg.zcu.cz/wscg2007/Papers_2007/journal/!WSCG2007_Journal_Final.zip
ISBN: 978-80-86943-00-8
ISSN: 1213-6972 (hardcopy)
1213-6964 (online)
1213-6980 (CD-ROM)
Keywords: objemová vizualizace;vrhání paprsku;převzorkování;korekce opacity
Keywords in different language: volume visualization;ray casting;oversampling;opacity correction
Abstract: A new opacity correction approach for oversampled volume ray casting is introduced. While the only existing opacity correction method in the literature is based on the assumption of dataset homogeneity, the new opacity correction method introduced in this paper is a faster, generalized voxel-by-voxel approach which does not assume dataset homogeneity. The new opacity correction avoids the dataset homogeneity assumption by introducing a new opacity correction factor for the samples in each voxel. Its performance improvement over the existing opacity correction approach is also exhibited for real volumetric datasets.
Rights: © Václav Skala - UNION Agency
Appears in Collections:Volume 15, number 1-3 (2007)

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Please use this identifier to cite or link to this item: http://hdl.handle.net/11025/1425

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