Unconstrained Free-Viewpoint Video Coding

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Unconstrained Free-Viewpoint Video Coding

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Title: Unconstrained Free-Viewpoint Video Coding
Author: Lamboray, Edouard; Würmlin, Stephan; Waschbüsch, Michael; Gross, Markus; Pfister, Hanspeter

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Citation: Lamboray, Edouard, Stephan Würmlin, Michael Waschbüsch, Markus Gross, and Hanspeter Pfister. 2004. Unconstrained free-viewpoint video coding. Proceedings: International Conference on Image Processing 5: 3261-3264.
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Abstract: In this paper, we present a coding framework addressing image-space compression for free-viewpoint video. Our framework is based on time-varying 3D point samples which represent real-world objects. The 3D point samples are obtained after a geometrical reconstruction from multiple pre-recorded video sequences and thus allow for arbitrary viewpoints during playback. The encoding of the data is performed as an off-line process and is not time-critical. The decoding however, must support for real-time rendering of the dynamic 3D data. We introduce a compression framework which encodes multiple point attributes like depth and color into progressive streams. The reference data structure is aligned on the original camera input images and thus enables for easy view-dependent decoding. A novel differential coding approach permits random access in constant time throughout the entire data set and thus enables arbitrary viewpoint trajectories in both time and space.
Published Version: doi:10.1109/ICIP.2004.1421809
Other Sources: http://gvi.seas.harvard.edu/sites/all/files/icip04.pdf
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:4726194
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