Title: Algebraic 3D reconstruction of planetary nebulae
Authors: Wenger, Stephan
Fernández, Juan Aja
Morisset, Christopher
Magnor, Marcus
Citation: Journal of WSCG. 2009, vol. 17, no. 1-3, p. 33-40.
Issue Date: 2009
Publisher: Václav Skala - UNION Agency
Document type: článek
URI: http://wscg.zcu.cz/wscg2009/Papers_2009/!_2009_J_WSCG_No_1-3.zip
ISSN: 1213–6972 (hardcopy)
1213–6980 (CD-ROM)
1213–6964 (online)
Keywords: algebraická rekonstrukce;volumetrické modelování;objemová rekonstrukce;3D modelování
Keywords in different language: algebraic reconstruction;volumetric modeling;volume reconstruction;3D modeling
Abstract: Distant astrophysical objects like planetary nebulae can normally only be observed from a single point of view. Assuming a cylindrically symmetric geometry, one can nevertheless create 3D models of those objects using tomographic methods. We solve the resulting algebraic equations efficiently on graphics hardware. Small deviations from axial symmetry are then corrected using heuristic methods, because the arising 3D models are, in general, no longer unambiguously defined. We visualize the models using real-time volume rendering. Models for actual planetary nebulae created by this approach match the observational data acquired from the earth’s viewpoint, while also looking plausible from other viewpoints for which no experimental data is available.
Rights: © Václav Skala - UNION Agency
Appears in Collections:Number 1-3 (2009)

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