DOI QR코드

DOI QR Code

MPEG-21 및 H.264/AVC SVC 기반 동적 비디오 적응 방법

Dynamic and Interoperable Adaptation of SVC for QoS-Enabled Streaming

  • 최해철 (한밭대학교 정보통신공학과) ;
  • 김재곤 (한국항공대학교 항공전자 및 정보통신공학부)
  • 투고 : 2012.02.13
  • 심사 : 2012.03.23
  • 발행 : 2012.04.28

초록

근래의 이종 네트워크 환경에서 비디오를 안정되게 전송하기 위해서는 네트워크 특성, 단말기 성능, 사용자 선호도 등의 소비 환경을 고려한 비디오 적응 방법이 요구되며, 비디오 부호화에서의 스케일러빌러티는 그 요구조건을 만족시키기 위한 좋은 해결책이다. 본 논문에서는 H.264/AVC SVC 스트림을 MPEG-21 디지털 아이템 적응(Digital Item Adaptation, DIA) 도구를 이용하여 네트워크 환경, 단말의 성능, 사용자 선호도에 따라 동적(dynamic)으로 비디오 콘텐츠를 적응시키는 방법을 제안한다. 실험에서는 이종망 네트워크 환경을 모델링하여 대역폭이 최대 62%의 변화가 있는 경우에도 제안한 방법으로 지연이 거의 없이 실시간으로 비트율을 적응할 수 있음을 보인다.

Seamless streaming of multimedia content that ensures Quality of Service over heterogeneous networks has been a desire for many multimedia services, for which the multimedia contents should be adapted to usage environments such as network characteristics, terminal capabilities, and user preferences. Scalability in video coding is a good feature to meet the requirement of heterogeneous networks. In this paper, we propose a dynamic adaptation scheme of H.264/AVC SVC bit-stream using the MPEG-21 Digital Item Adaptation (DIA) tool. MPEG-21 DIA framework provides systematic solutions in choosing an adaptation operation to given conditions and supports interoperable video adaptation. The experiment results show that the proposed adaptation scheme provides QoS-enabled delivery and consumption of SVC with time-varying constraints of network, terminal, and user preference, in a robust and efficient way. In particular, the proposed adaptation scheme is proved to work well with very low delay under the condition that the variation rate of the given network bandwidth is upto 62%.

키워드

참고문헌

  1. A. Vetro, "MPEG-21 Digital Item Adaptation: Enabling Universal Multimedia Access," IEEE Multimedia, Vol.11, Issue.1, pp.84-87, 2004. https://doi.org/10.1109/MMUL.2004.1261111
  2. A. Vetro, C. Christopoulos, and H. Sun. "Video transcoding architectures and techniques: An overview," IEEE Signal Processing Mag., Vol.20, pp.18-29, 2003(3). https://doi.org/10.1109/MSP.2003.1184336
  3. W. Li, "Overview of fine granularity scalability in MPEG-4 video standard," IEEE Trans. on Circuit and System for Video Technology, Vol.11, pp.301-317, 2001(3). https://doi.org/10.1109/76.911157
  4. J. G. Kim, Y. Wang, S. F. Chang, and H. M. Kim, "An optimal framework of video adaptation and its application to rate adaptation transcoding," ETRI Journal, Vol.27, No.4, 2005(8). https://doi.org/10.4218/etrij.05.0105.0019
  5. ITU-T and ISO/IEC JTC 1, "Generic coding of moving pictures and associated audio information - Part 2: Video," ITU-T Recommendation H.262 and ISO/IEC 13818-2 (MPEG-2 Video), 1994(11).
  6. ITU-T, "Video coding for low bit rate communication," ITU-T Recommendation H.263, Version1: Nov. 1995, Version2: Jan. 1998, Version3: Nov. 2000.
  7. ISO/IEC JTC 1, "Coding of audio-visual objects - Part 2: Visual," ISO/IEC 14492-2 (MPEG-4 Visual), Version 1: Apr. 1999, Version 2: Feb. 2000, Version 3: May. 2004.
  8. T. Wiegand, G. Sullivan, J. Reichel, H. Schwarz, and M. Wien, "Joint Draft 8 of SVC Amendment," Joint Video Team, Doc. JVT-U201, Hangzhou, China, 2006(10).
  9. Joint Scalable Video Model, Joint Video Team of ISO/IEC MPEG & ITU-T VCEG, Doc. JVT-X202, 2007(7).
  10. H. Schwarz, D. Marpe, and T. Wiegand, "Overview of the scalable video coding extension of the H.264/AVC standard," IEEE Trans. on Circuit and System for Video Technology, Vol.17, No.9, pp.1103-1120, 2007(9) https://doi.org/10.1109/TCSVT.2007.905532
  11. ISO/IEC IS 21000-7:2004 "Information technology-Multimedia framework (MPEG-21) - Part 7: Digital Item Adaptation," 2004.
  12. ITU-T and ISO/IEC JTC 1, Advanced Video Coding for Generic Audio visual Services, ITU-T Recommendation H.264 and ISO/IEC 14496-10 (MPEG4-AVC), Fourth edition: Sep. 2008.
  13. ISO/IEC PDTR 21000-12:2004, "Information technology - Multimedia framework (MPEG-21) Part 12: Test Bed for MPEG-21 Resource Delivery," 2004.
  14. Y. K. Wang, M. M. Hannuksela, S. Pateux, and A. Eleftheriadis, "System and Transport Interface of the Emerging SVC Standard," Joint Video Team, Doc. JVT-U151, Hangzhou, China, 2006(10).
  15. H. Schwarz, D. Marpe, and T. Wiegand, "Analysis of hierarchical B pictures and MCTF," Proceedings of ICME' 06, Toronto, Canada, 2006(7).
  16. H. Schwarz, D. Marpe, and T. Wiegand, "Comparison of MCTF and closed-loop hierarchical B pictures," Joint Video Team, Doc. JVT-P059, Poznan, Poland, 2005(7).
  17. T. C. Thang, J.-G. Kim, J. W. Kang, and J.-J. Yoo, "SVC adaptation: Standard tools and supporting methods," Signal Processing: Image Communication, Vol.24, pp.214-228, 2009(3). https://doi.org/10.1016/j.image.2008.12.006
  18. T. C. Thang, Y. S. Kim, J. W. Kang, Y. M. Ro, and J. G. Kim, "SVC Video Adaptation with MPEG-21 DIA AdaptationQoS," ISO/IEC JTC1 SC29 WG11, Doc. m12638, Nice, France, 2005(10).