An Overview of Omnidirectional MediA Format (OMAF)

The tutorial will focus on overviewing the Omnidirectional MediA Format (OMAF), the first standard on Virtual Reality (VR) and 360 degree video being developed by MPEG. OMAF is expected be finalized at the October 2017 MPEG meeting.

The overview will include (but not limited to) the following topics:
  • Basic concept and framework of VR/omnidirectional/360 video
  • OMAF: when, who, what
  • OMAF architecture
  • Projections
  • Region-wise packing
  • Fisheye 360 video support in OMAF
  • Signaling in the ISO base media file format (ISOBMFF)
    • VR/360 video indication
    • Signaling of projection, region-wise packing, coverage, and orientation
    • Signaling of fisheye video characteristics
    • Guard band signaling
    • Viewport/viewpoint metadata signaling
      • Recommended viewport
      • Initial viewpoint
      • Region-wise quality ranking
    • VR content carried in multiple tracks
      • Based on HEVC tiles
      • Based on sub-pictures
  • Signaling in dynamic adaptive streaming over HTTP (DASH)
  • OMAF media profiles and presentation profiles
  • Viewport dependent 360 video encoding and delivery

Ye-Kui Wang received his BS degree in industrial automation in 1995 from Beijing Institute of Technology, and his PhD degree in information and telecommunication engineering in 2001 from the Graduate School in Beijing, University of Science and Technology of China. He is currently a Director of Technical Standards at Qualcomm, San Diego, CA, USA. His earlier working experiences and titles include Multimedia Standards Manager at Huawei Technologies, Bridgewater, NJ from Dec. 2008 to Aug. 2011, various positions, including Principal Member of Research Staff, at Nokia Corporation, Tampere, Finland from Feb. 2003 to Dec. 2008, and Senior Researcher at Tampere International Center for Signal Processing, Tampere University of Technology, Tampere, Finland from Jun. 2001 to Jan. 2003. His research interests include video coding, storage, transport and multimedia systems. Dr. Wang has been an active contributor to various multimedia standards, including video codecs, file formats, RTP payload formats, and multimedia streaming and application systems, developed by ITU-T VCEG, ISO/IEC MPEG, JVT, JCT-VC, JCT-3V, 3GPP SA4, IETF, AVS, DVB, ATSC, DECE, and so on. He has been an editor for several standards, including OMAF, HEVC, SHVC, HEVC file format, layered HEVC file format, ITU-T H.271, SVC file format, MVC, RFC 6184, RFC 6190, RFC 7798, 3GPP TR 26.906, and 3GPP TR 26.948. He has co-authored over 800 standardization contributions, over 50 academic papers, and about 400 families of patent applications (out of which 177 US patents have been granted as of July 26, 2017).