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Dynamic and Interoperable Adaptation of SVC for QoS-Enabled Streaming

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

  • 최해철 (한밭대학교 정보통신공학과) ;
  • 김재곤 (한국항공대학교 항공전자 및 정보통신공학부)
  • Received : 2012.02.13
  • Accepted : 2012.03.23
  • Published : 2012.04.28

Abstract

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%.

Keywords

Scalable Video Coding;Video Adaptation;MPEG-21

Acknowledgement

Supported by : 한국연구재단

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