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Architectures for fast transcoding of H.264/AVC to quality-scalable SVC streams

(2009) IEEE TRANSACTIONS ON MULTIMEDIA. 11(7). p.1209-1224
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Abstract
The scalable extension of H.264/AVC (SVC) was recently standardized, and offers scalability at a minor penalty in rate-distortion efficiency when compared to single-layer H.264/AVC coding. In SVC, a scaled version of the original video sequence can easily be extracted by dropping layers from the stream. However, most of the video content nowadays is still produced in a single-layer format. While decoding and reencoding is a possible solution to introduce scalability in the existing bitstreams, this is an approach which requires a tremendous amount of time and effort. In this paper, we show that transcoding can be used to intelligently derive scalable bitstreams from existing single-layer streams. We focus on SNR scalability, and introduce techniques that are able to create multiple quality layers in the bitstreams. We also discuss bitstream rewriting from SVC to H.264/AVC, and examine how our newly proposed architectures can benefit from the changes that were introduced for bitstream rewriting. Architectures with different rate distribution flexibility and computational complexity are discussed. Rate-distortion performance of transcoding is shown to be comparable to that of reencoding at a fraction of the time needed for the latter.
Keywords
video transcoding, VIDEO, H.264/AVC, Scalable video coding

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Citation

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

MLA
De Cock, Jan et al. “Architectures for Fast Transcoding of H.264/AVC to Quality-scalable SVC Streams.” IEEE TRANSACTIONS ON MULTIMEDIA 11.7 (2009): 1209–1224. Print.
APA
De Cock, J., Notebaert, S., Lambert, P., & Van de Walle, R. (2009). Architectures for fast transcoding of H.264/AVC to quality-scalable SVC streams. IEEE TRANSACTIONS ON MULTIMEDIA, 11(7), 1209–1224.
Chicago author-date
De Cock, Jan, Stijn Notebaert, Peter Lambert, and Rik Van de Walle. 2009. “Architectures for Fast Transcoding of H.264/AVC to Quality-scalable SVC Streams.” Ieee Transactions on Multimedia 11 (7): 1209–1224.
Chicago author-date (all authors)
De Cock, Jan, Stijn Notebaert, Peter Lambert, and Rik Van de Walle. 2009. “Architectures for Fast Transcoding of H.264/AVC to Quality-scalable SVC Streams.” Ieee Transactions on Multimedia 11 (7): 1209–1224.
Vancouver
1.
De Cock J, Notebaert S, Lambert P, Van de Walle R. Architectures for fast transcoding of H.264/AVC to quality-scalable SVC streams. IEEE TRANSACTIONS ON MULTIMEDIA. 2009;11(7):1209–24.
IEEE
[1]
J. De Cock, S. Notebaert, P. Lambert, and R. Van de Walle, “Architectures for fast transcoding of H.264/AVC to quality-scalable SVC streams,” IEEE TRANSACTIONS ON MULTIMEDIA, vol. 11, no. 7, pp. 1209–1224, 2009.
@article{789803,
  abstract     = {The scalable extension of H.264/AVC (SVC) was recently standardized, and offers scalability at a minor penalty in rate-distortion efficiency when compared to single-layer H.264/AVC coding. In SVC, a scaled version of the original video sequence can easily be extracted by dropping layers from the stream. However, most of the video content nowadays is still produced in a single-layer format. While decoding and reencoding is a possible solution to introduce scalability in the existing bitstreams, this is an approach which requires a tremendous amount of time and effort. In this paper, we show that transcoding can be used to intelligently derive scalable bitstreams from existing single-layer streams. We focus on SNR scalability, and introduce techniques that are able to create multiple quality layers in the bitstreams. We also discuss bitstream rewriting from SVC to H.264/AVC, and examine how our newly proposed architectures can benefit from the changes that were introduced for bitstream rewriting. Architectures with different rate distribution flexibility and computational complexity are discussed. Rate-distortion performance of transcoding is shown to be comparable to that of reencoding at a fraction of the time needed for the latter.},
  author       = {De Cock, Jan and Notebaert, Stijn and Lambert, Peter and Van de Walle, Rik},
  issn         = {1520-9210},
  journal      = {IEEE TRANSACTIONS ON MULTIMEDIA},
  keywords     = {video transcoding,VIDEO,H.264/AVC,Scalable video coding},
  language     = {eng},
  number       = {7},
  pages        = {1209--1224},
  title        = {Architectures for fast transcoding of H.264/AVC to quality-scalable SVC streams},
  url          = {http://dx.doi.org/10.1109/TMM.2009.2030606},
  volume       = {11},
  year         = {2009},
}

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