Title: Evaluation of the linear box-spline filter from trilinear texture samples: a feasibility study
Authors: Domonkos, Balázs
Csébfalvi, Balázs
Citation: Journal of WSCG. 2011, vol. 19, no. 1-3, p. 77-84.
Issue Date: 2011
Publisher: Václav Skala - UNION Agency
Document type: článek
URI: http://wscg.zcu.cz/WSCG2011/!_2011_J_WSCG_1-3.pdf
ISSN: 1213–6972 (hardcopy)
1213–6980 (CD-ROM)
1213–6964 (on-line)
Keywords: objemové vykreslování;filtrování;rekonstrukce
Keywords in different language: volume rendering;filtering;reconstruction
Abstract: The major preference for applying B-spline filtering rather than non-separable box spline filtering on the BCC lattice is the fact that separable filtering can be performed more efficiently on current GPUs due to the utilization of the hardware-accelerated trilinear texture fetching. In order to make a fair comparison, a similar, efficient evaluation scheme is required that uses trilinear texture fetches instead of nearest-neighbor ones also for the box splines. Thus, in this paper, we propose an evaluation scheme for the linear BCC box spline built upon a trilinear B-spline basis. We compare our trilinearly evaluated linear box spline scheme to the latest method, that uses twice as many nearest neighbor fetches. Then we give a comparison to the major competitive methods: the BCC B-spline filtering and the BCC DC-spline filtering in terms of their performance.
Rights: © Václav Skala - UNION Agency
Appears in Collections:Number 1-3 (2011)

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Please use this identifier to cite or link to this item: http://hdl.handle.net/11025/1240

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