International Real-time Streaming of 4K Digital Cinema
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URL: www.calit2.net Contact: Laurin Herr, Pacific Interface, Inc. (PII), USA, laurin @ pacific-interface.com Collaborators: 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:
Special thanks to the generous cooperation of Sony Electronics USA, SGI and SGI Japan, Olympus Corporation and ASTRODESIGN Inc. |
   
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