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Proceedings Paper

View generation for 3D-TV using image reconstruction from irregularly spaced samples
Author(s): Carlos Vázquez
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Paper Abstract

Three-dimensional television (3D-TV) will become the next big step in the development of advanced TV systems. One of the major challenges for the deployment of 3D-TV systems is the diversity of display technologies and the high cost of capturing multi-view content. Depth image-based rendering (DIBR) has been identified as a key technology for the generation of new views for stereoscopic and multi-view displays from a small number of views captured and transmitted. We propose a disparity compensation method for DIBR that does not require spatial interpolation of the disparity map. We use a forward-mapping disparity compensation with real precision. The proposed method deals with the irregularly sampled image resulting from this disparity compensation process by applying a re-sampling algorithm based on a bi-cubic spline function space that produces smooth images. The fact that no approximation is made on the position of the samples implies that geometrical distortions in the final images due to approximations in sample positions are minimized. We also paid attention to the occlusion problem. Our algorithm detects the occluded regions in the newly generated images and uses simple depth-aware inpainting techniques to fill the gaps created by newly exposed areas. We tested the proposed method in the context of generation of views needed for viewing on SynthaGramTM auto-stereoscopic displays. We used as input either a 2D image plus a depth map or a stereoscopic pair with the associated disparity map. Our results show that this technique provides high quality images to be viewed on different display technologies such as stereoscopic viewing with shutter glasses (two views) and lenticular auto-stereoscopic displays (nine views).

Paper Details

Date Published: 5 March 2007
PDF: 12 pages
Proc. SPIE 6490, Stereoscopic Displays and Virtual Reality Systems XIV, 64900E (5 March 2007); doi: 10.1117/12.704411
Show Author Affiliations
Carlos Vázquez, Communications Research Ctr. (Canada)


Published in SPIE Proceedings Vol. 6490:
Stereoscopic Displays and Virtual Reality Systems XIV
Andrew J. Woods; Neil A. Dodgson; John O. Merritt; Nicolas S. Holliman; Mark T. Bolas; Ian E. McDowall, Editor(s)

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