On the performance of scalable video coding for VBR TV channels transport in multiple resolutions and qualities

Authors:
Zlatka Avramova;Danny Vleeschauwer;Pedro Debevere;Sabine Wittevrongel;Peter Lambert;Rik Walle;Herwig Bruneel
Affiliations:
SMACS Research Group, TELIN, Faculty of Engineering, Ghent University, Ghent, Belgium 9000;Alcatel-Lucent Bell, Bell Labs, Antwerp, Belgium 2018;Multimedia Lab Research Group, IBBT, Ghent University, Ghent, Belgium 9050;SMACS Research Group, TELIN, Faculty of Engineering, Ghent University, Ghent, Belgium 9000;Multimedia Lab Research Group, IBBT, Ghent University, Ghent, Belgium 9050;Multimedia Lab Research Group, IBBT, Ghent University, Ghent, Belgium 9050;SMACS Research Group, TELIN, Faculty of Engineering, Ghent University, Ghent, Belgium 9000
Venue:
Multimedia Tools and Applications
Year:
2011

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Abstract

Video broadcast operators target a variety of receiving devices of different resolutions and processing capabilities. In such a heterogeneous TV network, the transport resource consumption is likely to increase. In this paper we estimate the required capacity for a broadcast TV network taking into account parameters as currently proposed in standardization bodies. We target constant video quality, hence the TV channel has variable bit rate (VBR). We consider a multicast-based transport system where only the required versions of a TV channel are transported. This leads to fluctuation of the consumed transport capacity over time. In order to characterize the fluctuations of the bit rate associated with one channel, we encoded a representative set of video clips. We compare a simulcast and a scalable video coding (SVC) transport scheme in several realistic examples with different encoding modes. We explore under what conditions one or the other transport scheme is more efficient.