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A complexity-scalable hybrid H.264/AVC-to-SVC transcoder

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HPC-UGent: the central High Performance Computing infrastructure of Ghent University
Abstract
Transcoding of H.264/AVC bitstreams is frequently used for adapting video streams to varying network conditions or different end-user device characteristics. Transcoding requires a relatively high complexity (and thus high operational cost) for each adaptation operation, and possibly reduces the video quality. In comparison, transcoding the input bitstream to SVC requires only one adaptation step. Afterwards, the resulting SVC bitstream can be adapted instantly. To reduce the H.264/AVC-to-SVC transcoding complexity, a transcoding architecture which combines existing open-loop transcoding techniques with optimized closed-loop transcoding is proposed. Furthermore, this approach allows to scale the complexity of the system. Doing so, compared with a cascaded decoder-encoder only 8.48% of the complexity is required for the highest complexity, while a high rate-distortion efficiency is maintained and a high degree of scalability is guaranteed. When only limited resources are available, the transcoding complexity can be scaled such that over 99% of the complexity is reduced compared to a cascaded decoder-encoder(1).
Keywords
complexity scalability, hybrid transcoding, CGS, FAST MODE DECISION, STREAMS, H.264/AVC-to-SVC transcoding, SVC

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Citation

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

Chicago
Van Leuven, Sebastiaan, Jan De Cock, Glenn Van Wallendael, Rosario Garrido-Cantos, and Rik Van de Walle. 2013. “A Complexity-scalable Hybrid H.264/AVC-to-SVC Transcoder.” Ieee Transactions on Consumer Electronics 59 (3): 672–680.
APA
Van Leuven, Sebastiaan, De Cock, J., Van Wallendael, G., Garrido-Cantos, R., & Van de Walle, R. (2013). A complexity-scalable hybrid H.264/AVC-to-SVC transcoder. IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, 59(3), 672–680.
Vancouver
1.
Van Leuven S, De Cock J, Van Wallendael G, Garrido-Cantos R, Van de Walle R. A complexity-scalable hybrid H.264/AVC-to-SVC transcoder. IEEE TRANSACTIONS ON CONSUMER ELECTRONICS. 2013;59(3):672–80.
MLA
Van Leuven, Sebastiaan, Jan De Cock, Glenn Van Wallendael, et al. “A Complexity-scalable Hybrid H.264/AVC-to-SVC Transcoder.” IEEE TRANSACTIONS ON CONSUMER ELECTRONICS 59.3 (2013): 672–680. Print.
@article{4423440,
  abstract     = {Transcoding of H.264/AVC bitstreams is frequently used for adapting video streams to varying network conditions or different end-user device characteristics. Transcoding requires a relatively high complexity (and thus high operational cost) for each adaptation operation, and possibly reduces the video quality. In comparison, transcoding the input bitstream to SVC requires only one adaptation step. Afterwards, the resulting SVC bitstream can be adapted instantly. To reduce the H.264/AVC-to-SVC transcoding complexity, a transcoding architecture which combines existing open-loop transcoding techniques with optimized closed-loop transcoding is proposed. Furthermore, this approach allows to scale the complexity of the system. Doing so, compared with a cascaded decoder-encoder only 8.48\% of the complexity is required for the highest complexity, while a high rate-distortion efficiency is maintained and a high degree of scalability is guaranteed. When only limited resources are available, the transcoding complexity can be scaled such that over 99\% of the complexity is reduced compared to a cascaded decoder-encoder(1).},
  author       = {Van Leuven, Sebastiaan and De Cock, Jan and Van Wallendael, Glenn and Garrido-Cantos, Rosario and Van de Walle, Rik},
  issn         = {0098-3063},
  journal      = {IEEE TRANSACTIONS ON CONSUMER ELECTRONICS},
  language     = {eng},
  number       = {3},
  pages        = {672--680},
  title        = {A complexity-scalable hybrid H.264/AVC-to-SVC transcoder},
  volume       = {59},
  year         = {2013},
}

Web of Science
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