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, 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.