A videoconferencing-oriented hybrid-domain H.264/SVC to H.264/AVC spatial transcoder

Lei Sun, Zhenyu Liu, Takeshi Ikenaga

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

As an extension of H.264/AVC, Scalable Video Coding (SVC) provides the ability to adapt to heterogeneous requirements. However, transcoding between SVC and AVC becomes necessary due to the existence of legacy AVC-based systems. The straightforward full re-encoding method requires great computational cost, and fast SVC-to-AVC spatial transcoding techniques have not been thoroughly investigated yet. This paper proposes a low-complexity SVC-to-AVC spatial transcoder in hybrid domain (pixel domain & transform domain) with drift compensation. In the pixel-domain transcoding, a fast re-encoding method is proposed based on mode mapping and MV refinement. In the transform-domain transcoding, the quantized transform coefficients together with motion data are reused directly to avoid re-quantization loss. At last, the drift problem in proposed transcoder is solved. Simulation results show that proposed transcoder achieves averagely 96.4% time reduction compared with the full re-encoding method, and outperforms the reference methods in coding efficiency.

Original languageEnglish
Title of host publicationLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Pages129-141
Number of pages13
Volume7674 LNCS
DOIs
Publication statusPublished - 2012
Event13th Pacific-Rim Conference on Multimedia, PCM 2012 - Singapore
Duration: 2012 Dec 42012 Dec 6

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume7674 LNCS
ISSN (Print)03029743
ISSN (Electronic)16113349

Other

Other13th Pacific-Rim Conference on Multimedia, PCM 2012
CitySingapore
Period12/12/412/12/6

Fingerprint

Scalable video coding
Video Coding
Transcoding
Encoding
Transform
Pixels
Pixel
Low Complexity
Mathematical transformations
Computational Cost
Quantization
Refinement
Coding
Necessary
Motion
Requirements
Costs
Coefficient
Simulation

Keywords

  • drift compensation
  • hybrid-domain
  • spatial scalability
  • SVC-to-AVC transcoding
  • videoconferencing

ASJC Scopus subject areas

  • Computer Science(all)
  • Theoretical Computer Science

Cite this

Sun, L., Liu, Z., & Ikenaga, T. (2012). A videoconferencing-oriented hybrid-domain H.264/SVC to H.264/AVC spatial transcoder. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 7674 LNCS, pp. 129-141). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 7674 LNCS). https://doi.org/10.1007/978-3-642-34778-8_12

A videoconferencing-oriented hybrid-domain H.264/SVC to H.264/AVC spatial transcoder. / Sun, Lei; Liu, Zhenyu; Ikenaga, Takeshi.

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 7674 LNCS 2012. p. 129-141 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 7674 LNCS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sun, L, Liu, Z & Ikenaga, T 2012, A videoconferencing-oriented hybrid-domain H.264/SVC to H.264/AVC spatial transcoder. in Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). vol. 7674 LNCS, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 7674 LNCS, pp. 129-141, 13th Pacific-Rim Conference on Multimedia, PCM 2012, Singapore, 12/12/4. https://doi.org/10.1007/978-3-642-34778-8_12
Sun L, Liu Z, Ikenaga T. A videoconferencing-oriented hybrid-domain H.264/SVC to H.264/AVC spatial transcoder. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 7674 LNCS. 2012. p. 129-141. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)). https://doi.org/10.1007/978-3-642-34778-8_12
Sun, Lei ; Liu, Zhenyu ; Ikenaga, Takeshi. / A videoconferencing-oriented hybrid-domain H.264/SVC to H.264/AVC spatial transcoder. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 7674 LNCS 2012. pp. 129-141 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).
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