Optimizing QPs for Multiview Image Coding for Free Viewpoint Video

Vanessa Testoni, Dinei Florencio, and Max Costa

Abstract

Teleconferencing and other applications of 3D video

have become of increasing interest. Besides stereo display, realistic

3D requires also free viewpoint video (FVV), in order to

provide adequate motion parallax. One of the most efficient ways

of synthesizing FVV of natural scenes is by image based rendering,

based on multiview video. A new approach for multiview

coding has been recently proposed, and shows that encoding

each macroblock of each frame with appropriate quantization

parameters (QPs) improves compression by around 2X. The QPs

used to acheive such improvement are tuned according to an adhoc

relation to the weights used in the synthetic view. In this

paper we show that the ad-hoc relation is actually optimum for

a Guassian source, and derive the optimum QPs for the generic

case.

Details

Publication typeInproceedings
Published inSBrT 2009
PublisherIEEE Communications Society
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