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A rate control algorithm for hierarchical B-pictures in Scalable Video Coding (SVC) is proposed in this work. The complex inter-frame dependency issue is effectively addressed by the Q-distance policy decision rule while the statistical smoothing effect enables the GOP-based precise bit rate control. The simplicity of the decision processes greatly reduces the encoder complexity providing an efficient...
Summary form only given. H.264/SVC, as a scalable extension of H.264/AVC, is finally standardized in 2007. Scalable video stream has achieved great flexibility and adaptability in terms of frame rates, display resolutions and quality levels. With three dimensions of the scalability, each coding unit in an H.264/SVC video is subject to highly complicated inter-dependency, which gives one of major challenges...
In this work, we propose a model-based layer bit allocation algorithm for joint spatial-quality (S-Q) scalability in H.264/SVC. The complicated inter-layer dependency is decoupled by the proposed spatial and quality rate and distortion (R-D) models. We show that the R-D characteristics of a dependent layer can be represented by a number of independent functions with GOP as a basic coding unit. Then,...
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