Title: | 3D reconstruction and visualization of spiral galaxies |
Authors: | Hildebrand, Kristian Magnor, Marcus Fröhlich, Bernd |
Citation: | Journal of WSCG. 2006, vol. 14, no. 1-3, p. 113-120. |
Issue Date: | 2006 |
Publisher: | Václav Skala - UNION Agency |
Document type: | článek article |
URI: | http://wscg.zcu.cz/wscg2007/Papers_2007/journal/!WSCG2007_Journal_Final.zip http://hdl.handle.net/11025/1352 |
ISBN: | 80-86943-09-7 |
ISSN: | 1213-6972 (hardcopy) 1213-6964 (online) 1213-6980 (CD-ROM) |
Keywords: | 3D vizualizace;astronomická vizualizace;3D rekonstrukce;spirálové galaxie |
Keywords in different language: | 3D visualization;astronomical visualization;3D reconstruction;spiral galaxies |
Abstract: | Spiral Galaxies are among the most stunning objects in the night sky. However, reconstructing a 3D volumetric model of these astronomical objects from conventional 2D images is a hard problem, since we are restricted to our terrestrial point of view. This work consists of two contributions. First, we employ a physically motivated, GPU-based volume rendering algorithm which models the complex interplay of scattering and extinction of light in interstellar space. Making use of general galactic shape information and far-infrared data, we secondly present a new approach to recover 3D volumes of spiral galaxies from conventional 2D images. We achieve this by an analysis-by-synthesis optimization using our rendering algorithm to minimize the difference between the rendition of the reconstructed volume and the input galaxy image. The presented approach yields a plausible volumetric structure of spiral galaxies which is suitable for creating 3D visualization, e.g., for planetarium shows or other educational purposes. |
Rights: | © Václav Skala - UNION Agency |
Appears in Collections: | Number 1-3 (2006) |
Files in This Item:
File | Description | Size | Format | |
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Hildebrand.pdf | 374,63 kB | Adobe PDF | View/Open |
Please use this identifier to cite or link to this item:
http://hdl.handle.net/11025/1352
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