Improving scalable video coding performance with decoder side information
In a heterogeneous landscape of networks, devices and consumption environments, scalability is one of the most important video coding features. To achieve higher scalable video compression efficiency, this paper proposes a novel scalable video coding framework based on predictive video coding but also exploiting some additional decoder side information. The side information is estimated at both encoder and decoder using a motion compensated temporal interpolation technique, commonly used in distributed video coding solutions. To improve the B-slices compression efficiency, the side information independently created at each coding layer, notably the base and enhancement layers, is inserted in the corresponding layer decoded picture buffer to be exploited as an additional reference frame in the scalable predictive coding process. Experimental results have shown significant compression efficiency gains, notably up to around 3.5% in bitrate savings regarding the state-of-the-art SVC standard.