General rate-allocation in free-viewpoint television

We propose a framework for optimal rate-allocation in free-viewpoint television (FVTV) for a general camera arrangement based on the attention the viewers are paying to each camera. In a recent letter [1], the authors proposed a FVTV broadcast architecture and an optimal bit-allocation approach, ass...

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Bibliographic Details
Main Authors: Dorea, Camilo, de Queiroz, Ricardo L.
Format: Conference Proceeding
Language:English
Subjects:
attention weighting
Cameras
Decision support systems
Free-viewpoint TV
High definition video
Manganese
rate-allocation
Resource management
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Summary:We propose a framework for optimal rate-allocation in free-viewpoint television (FVTV) for a general camera arrangement based on the attention the viewers are paying to each camera. In a recent letter [1], the authors proposed a FVTV broadcast architecture and an optimal bit-allocation approach, assuming a uniformly-spaced one-dimensional arrangement of cameras. Quality (or bit-rate) at each camera was determined by viewer attention in order to minimize total observed distortion. Here, we extend the optimized bit-allocation scheme to allow for a more generic camera arrangement in FVTV. We present results on data sets from 1D and 2D array camera setups which show significant overall PSNR gains and bit-rate savings with respect to equally-balanced rate-allocation across cameras.
ISSN:1522-4880
2381-8549
DOI:10.1109/ICIP.2014.7025028