Journal of Multimedia Information System

한국멀티미디어학회 (Korea Multimedia Society)
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A Metadata-enabled Approach for Scalable Video Streaming in Heterogeneous Networks

  • Thang, Truong Cong (Computer Engineering Division, The University of Aizu) ;
  • Le, Hung T. (Computer Engineering Division, The University of Aizu) ;
  • Nguyen, Duc V. (Computer Engineering Division, The University of Aizu) ;
  • Pham, Anh T. (Computer Engineering Division, The University of Aizu)
  • 투고 : 2015.03.02
  • 심사 : 2015.04.28
  • 발행 : 2015.03.31
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초록

In today's pervasive computing environments, multimedia content should be adapted to meet various conditions of network connections, terminals, and user characteristics. Scalable Video Coding (SVC) is a key solution for video communication over heterogeneous networks, where user terminals have different capabilities. This paper presents a standard-compliant approach that adapts an SVC bitstream to support multiple users. The adaptation problem is formulated as an optimization problem, focusing on the tradeoff between qualities of different spatial layers of an SVC video. Then the adaptation process is represented by standard metadata of MPEG-21, which can be solved by universal processing to enable interoperable and automatic operation. Our approach provides the users with optimal quality, a wide flexibility, and seamless adaptation. To the best of our knowledge, this is the first study that shows the adaptation tradeoff between spatial layers of a conforming SVC bitstream.

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참고문헌

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