방송공학회논문지 (Journal of Broadcast Engineering)

  • 제23권4호
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  • Pages.549-558
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  • 2018
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  • 1226-7953(pISSN)
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  • 2287-9137(eISSN)
한국방송∙미디어공학회 (The Korean Institute of Broadcast and Media Engineers)
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MPEG-DASH 기반 저지연 라이브 360 VR 분할영상 스트리밍 서버 구현

Implementation of MPEG-DASH based Low-Latency Live 360 VR Tiled Video Streaming Server

  • 투고 : 2018.06.04
  • 심사 : 2018.07.06
  • 발행 : 2018.07.30
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초록

360 VR(Virtual Reality) 비디오와 같이 고품질의 비디오를 기존 케이블 망에서 IPTV 또는 OTT(Over the Top) SettopBox과 같은 저사양 미디어 서비스 기기를 통해 저지연 라이브 스트리밍 서비스를 할 수 있도록 MPEG DASH(Dynamic Adaptive Streaming over HTTP) 기반의 스트리밍 서버를 설계하고 구현하였다. 또한, 서버 응답 지연 시간을 줄이기 위해 스트리밍 영상 파일(MPD, Segment Files)을 메모리상에 캐싱 하여 서비스 할 수 있는 관리 프로세스를 설계하고 적용하였다. 그리고 실험을 통해 bitrate가 50,000kbps 이상이고, 8K@60P 급의 고품질 분할 영상 스트리밍을 지원하는 것을 확인하였다

We designed and implemented streaming server based on MEPG DASH, which is able to provide high quality video with low-latency live streaming service like 360 VR video on the existing cable network via low-spec media service devices such as IPTV and OTT(Over the Top) SettopBox. We also designed and applied management process which is cable of supporting services by cashing streaming video file(MPD, Segment Files) to reduce the server response delay time. Further more, we confimred that it is also able to provide high quality of tiled video streaming with over 50,000kbps bitrate and 8K@60P through the experiment.

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참고문헌

  1. M. Hosseini, V. Swaminathan, "Adaptive 360 VR Video Streaming: Divide and Conquer!", IEEE International Symposium on Multimedia, San Jose, California, USA, 2016.
  2. O.A. Niamut, E. Thomas, L. D'Acunto, C. Concolato, F. Denoual, S.Y. Lim, "MPEG DASH SRD - Spatial Relationship Description", Proceedings of the 7th International Conference on Multimedia Systems, Klagenfurt, Austria, 2016.
  3. Afshin Taghavi Nasrabadi, Anahita Mahzari, Joseph D. Beshay, Ravi Prakash, "Adaptive 360-Degree Video Streaming using Scalable Video Coding", Proceedings of the 2017 ACM on Multimedia Conference, New York, USA, pp. 1689-1697, 2017.
  4. M. Hosseini, V. Swaminathan, "Adaptive 360 VR Video Streaming Based on MPEG-DASH SRD", IEEE International Symposium on Multimedia 2016, San Jose, California, USA, pp. 407-408, 2016.
  5. ISO/IEC 23009-1:2014/Amd 2:2015, Spatial relationship description, generalized URL parameters and other extensions
  6. Y. H. Kim, W. S. Cheong, J. J. Lee, "A Study on the Existing Cable Network-based Tiled Streaming Stystem for High Fidelity 360 VR Video Service", in Proceeding of the 2017 Winter Conference on The Korean Institute of Communications and Information Sciences, Gangwon-do, Korea, pp. 901-902, 2017.
  7. Dash Low Latency Web Server, https://github.com/gpac/node-gpacdash (accessed Jul, 18, 2016)