Real-Time Applications

International Real-time Streaming of 4K Digital Cinema


Laurin Herr, Pacific Interface, Inc. (PII), USA, laurin @

PII, USA: Laurin Herr, Natalie Van Osdol
Electronic Visualization Laboratory, University of Illinois at Chicago, USA:: Tom DeFanti, Dan Sandin, Xi Wang
Calit2, University of California, San Diego, USA: Greg Hidley, Greg Dawe, Aaron Chin, Peter Otto
Research Institute for Digital Media and Content (DMC), Keio University, Japan: Sadayasu Ono, Naohisa Ohta
NTT Network Innovations Laboratories, Japan: Kazuo Hagimoto, Tetsuro Fujii, Osamu Ishida, Kazuhiro Shirakawa, Kan Toyoshima, Takashi Shimizu, Takahiro Murooka, Kazuaki Obana, Hirokazu Takahashi, Daisuke Shirai, Yoshihide Tonomura, Yasunori Sameshima
Digital Cinema Technology Forum and Digital Cinema Consortium of Japan: Tomonori Aoyama

Live and pre-recorded 4K content, with four times the resolution of HDTV, is compressed using JPEG 2000 at 200-400Mb and streamed in real-time via 1Gb IP networks, from Keio University in Tokyo to iGrid 2005 in San Diego. 4K content includes materials shot with digital motion picture cameras and digital still cameras, pre-rendered computer animations, real-time computer-generated visualizations, and digitally scanned 35mm and 65mm motion-picture film.

Using the JGN-II/NiCT and GEMnet2 links across the Pacific Ocean, a combination of Layer-2 and Layer-3 networks is configured using NTT Labs’ FLEXCAST technology, which enables multicast over IP unicast networks to deliver the 4K content simultaneously to two playback systems at the iGrid 2005 venue. An HD-over-IP side-channel for interactive video conferencing between Keio and iGrid is also implemented using HDTV cameras and MPEG-2 MP @ HL codecs operating at 30-50Mb.

Content contributors:

  • Guttenberg Bible - Keio University Library
  • Indonesian Arts - NiCT
  • Japanese Arts - Olympus
  • Nijo Castle – Toppan
  • Noh Performance - DMC and Naohiko Umewaka
  • Anime - Mits Kaneko, CTC/Tokyo University of Technology
  • Study of 4D Julia Sets - Dan Sandin, EVL/UIC
  • Milky Way Fly-Through - Donna Cox, Bob Patterson, NCSA/UIUC
  • Tornado Simulation - Donna Cox, Bob Patterson, NCSA/UIUC
  • Digital Plants - Richard Weinberg, USC/School of Cinema-TV
  • Blue Cavier - Michael Forsberg, USC/School of Cinema-TV
  • Circle of Love – ARRI
  • Mystic India Trailer - BAPS Swaminarayan Sanstha, Keith Melton
  • GeoFusion - Eric Frost, SDSU
  • Digital Dailies - PixelFarm, DALSA

Special thanks to the generous cooperation of Sony Electronics USA, SGI and SGI Japan, Olympus Corporation and ASTRODESIGN Inc.