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Fast channel switching for single-loop scalable HEVC

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HPC-UGent: the central High Performance Computing infrastructure of Ghent University
Abstract
In an IPTV environment, different techniques exist to provide faster random access or equivalently, a faster channel switching experience, but none of them provide backward compatibility and limited overhead at the same time. In this paper, a technique is proposed to increase the random access frequency for the High Efficiency Video Coding (HEVC) standard by using a single-loop scalable version of it. This is achieved by encoding an enhancement layer with a higher frequency of random access points compared to the base layer. With this scalable configuration, a backward compatible base stream remains present. The proposed technique requires 12.4% less bitrate compared to sending the fast and slow switching streams in a non-scalable way. Compared to the almost standardized multi-loop scalable extension of HEVC, 5.5% less bitrate is needed on the core of the IPTV network and 12.5% less bitrate on the access network during steady state conditions. Moreover, the multi-loop scalable extension does not provide backward compatibility with legacy HEVC decoders.
Keywords
High Efficiency Video Coding, random access, single-loop scalable compression, Channel switching, ZAPPING TIME

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Citation

Please use this url to cite or link to this publication:

MLA
Van Wallendael, Glenn et al. “Fast Channel Switching for Single-loop Scalable HEVC.” IEEE International Conference on Image Processing ICIP. IEEE, 2014. 5991–5995. Print.
APA
Van Wallendael, G., Staelens, N., Van Leuven, S., De Cock, J., Lambert, P., Demeester, P., & Van de Walle, R. (2014). Fast channel switching for single-loop scalable HEVC. IEEE International Conference on Image Processing ICIP (pp. 5991–5995). Presented at the IEEE International Conference on Image Processing (ICIP), IEEE.
Chicago author-date
Van Wallendael, Glenn, Nicolas Staelens, Sebastiaan Van Leuven, Jan De Cock, Peter Lambert, Piet Demeester, and Rik Van de Walle. 2014. “Fast Channel Switching for Single-loop Scalable HEVC.” In IEEE International Conference on Image Processing ICIP, 5991–5995. IEEE.
Chicago author-date (all authors)
Van Wallendael, Glenn, Nicolas Staelens, Sebastiaan Van Leuven, Jan De Cock, Peter Lambert, Piet Demeester, and Rik Van de Walle. 2014. “Fast Channel Switching for Single-loop Scalable HEVC.” In IEEE International Conference on Image Processing ICIP, 5991–5995. IEEE.
Vancouver
1.
Van Wallendael G, Staelens N, Van Leuven S, De Cock J, Lambert P, Demeester P, et al. Fast channel switching for single-loop scalable HEVC. IEEE International Conference on Image Processing ICIP. IEEE; 2014. p. 5991–5.
IEEE
[1]
G. Van Wallendael et al., “Fast channel switching for single-loop scalable HEVC,” in IEEE International Conference on Image Processing ICIP, Paris, France, 2014, pp. 5991–5995.
@inproceedings{5972978,
  abstract     = {In an IPTV environment, different techniques exist to provide faster random access or equivalently, a faster channel switching experience, but none of them provide backward compatibility and limited overhead at the same time. In this paper, a technique is proposed to increase the random access frequency for the High Efficiency Video Coding (HEVC) standard by using a single-loop scalable version of it. This is achieved by encoding an enhancement layer with a higher frequency of random access points compared to the base layer. With this scalable configuration, a backward compatible base stream remains present. The proposed technique requires 12.4% less bitrate compared to sending the fast and slow switching streams in a non-scalable way. Compared to the almost standardized multi-loop scalable extension of HEVC, 5.5% less bitrate is needed on the core of the IPTV network and 12.5% less bitrate on the access network during steady state conditions. Moreover, the multi-loop scalable extension does not provide backward compatibility with legacy HEVC decoders.},
  author       = {Van Wallendael, Glenn and Staelens, Nicolas and Van Leuven, Sebastiaan and De Cock, Jan and Lambert, Peter and Demeester, Piet and Van de Walle, Rik},
  booktitle    = {IEEE International Conference on Image Processing ICIP},
  isbn         = {9781479957514},
  issn         = {1522-4880},
  keywords     = {High Efficiency Video Coding,random access,single-loop scalable compression,Channel switching,ZAPPING TIME},
  language     = {eng},
  location     = {Paris, France},
  pages        = {5991--5995},
  publisher    = {IEEE},
  title        = {Fast channel switching for single-loop scalable HEVC},
  year         = {2014},
}

Web of Science
Times cited: