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
URI: http://wscg.zcu.cz/wscg2007/Papers_2007/journal/!WSCG2007_Journal_Final.zip
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 SizeFormat 
Hildebrand.pdf374,63 kBAdobe PDFView/Open

Please use this identifier to cite or link to this item: http://hdl.handle.net/11025/1352

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.