TY - JOUR
T1 - Beyond 4K
T2 - 8K 60p live video streaming to multiple sites
AU - Kitamura, Masahiko
AU - Shirai, Daisuke
AU - Kaneko, Kunitake
AU - Murooka, Takahiro
AU - Sawabe, Tomoko
AU - Fujii, Tatsuya
AU - Takahara, Atsushi
N1 - Funding Information:
A part of this study was supported by from the National Institute of information and Communications Technology (NiCT) of Japan . Masahiko Kitamura received his M.E. degree in interdisciplinary information studies from the University of Tokyo, Japan in 2007. He joined NTT Laboratories in 2007. He has been researching super high definition image communications in NTT Network Innovation Laboratories. Daisuke Shirai is a research engineer of NTT Network Innovation Laboratories. He received M.Eng. degree in computer science from Keio University, Japan in 2001. Since then, he has been researching super-high-definition imaging systems and their transmission technology. He is currently engaged in research on compressed 4k image transmission systems. Kunitake Kaneko is an associate professor of Research Institute for Digital Media and Content (DMC) at Keio University. He attended undergraduate school at the University of Tokyo, where he also received his M.S. from the Graduate School of Engineering, and his Ph.D. from the Graduate School of Information Science and Technology. In 2006, he joined DMC at Keio University. His research area has been new generation network architecture. In Keio/DMC, he is trying to find out the problems of existing network system through the experiences of high-quality digital media applications. He is also working with the digital cinema industry as one of three compliance testing centers over the world. Takahiro Murooka is a chief researcher at NTT Network Innovation Laboratories (Japan). He received his M.Phil. and Ph.D. from the Kyoto University and has B.Sc. in Information Science from the Saga University. He has been researching communication systems and network design. His research interests include LSI design, application layered multicast and measurement of its network. Tomoko Sawabe received the B.S, degree and Dr. of Engineering degree from Keio University, Japan in 1987 and 1996 respectively. She joined NTT Communication Network Laboratory No. 1 in 1987. Sha has been engaged in research on parallel digital signal processing, super high definition image processing. She is currently a Senior Research Engineer in NTT Network Innovation Laboratories. Tatsuya Fujii received his B.S., M.S. and Ph.D. degrees, all in electrical engineering from the University of Tokyo, Tokyo, Japan, in 1986, 1988, and 1991, respectively. He joined NTT, Japan, in 1991. He has been researching parallel image processing and super-high-definition image communication networks. In 1996, he was a visiting researcher of Washington University in St. Louis. He is currently a group leader of media processing systems research group and a director of digital cinema project in NTT Network Innovation Laboratories. He is a member of IEICE, ITE of Japan and IEEE. Atsushi Takahara received the B.S., M.S., and Dr. of Engineering degrees from Tokyo Institute of Technology in 1983, 1985, and 1988, respectively. He joined NTT LSI Laboratories in 1988 and has been researching formal methods of VLSI design, reconfigurable architectures, and IP processing. From @2003 to 2008, he was the director of Service Development & Operations Department, Visual Communications Division, NTT Bizlink Inc. to develop and operate an IP-based visual communication service. Since 2008, he has been the Executive Manager of Media Innovation Laboratory in the NTT Network Innovation Laboratories. His current research interests are in IP networking for real time communication applications and IP infrastructure technologies. He is a member of IEEE, ACM, IEICE, and IPSJ.
PY - 2011/7
Y1 - 2011/7
N2 - The high definition of 4K motion pictures makes them applicable to a wide variety of purposes. The development of 4K image equipment such as cameras, displays, and playback systems has made easy viewing of 4K video possible. Video frame rates have also become higher, enabling 4K-60 fps progressive (60p) video streams to be transmitted over IP networks. However, problems remain in increasing video image resolution to 8K or more so as to build systems in which many people collaborate at the same time. This paper describes a video transmission system that attains image resolution of 8K-60p or higher by synchronizing multiple 4K transmission systems we have developed. Since 8K-60p transmission over IP networks has extremely high traffic rates, schemes for achieving robust transmission such as forward error correction (FEC) must also have very high rates. We have also developed techniques for attaining reliable transmission, i.e., the use of low-density generator matrix (LDGM) codes to achieve high throughput FEC, application-layer multicasting, and monitoring network status at multiple points.
AB - The high definition of 4K motion pictures makes them applicable to a wide variety of purposes. The development of 4K image equipment such as cameras, displays, and playback systems has made easy viewing of 4K video possible. Video frame rates have also become higher, enabling 4K-60 fps progressive (60p) video streams to be transmitted over IP networks. However, problems remain in increasing video image resolution to 8K or more so as to build systems in which many people collaborate at the same time. This paper describes a video transmission system that attains image resolution of 8K-60p or higher by synchronizing multiple 4K transmission systems we have developed. Since 8K-60p transmission over IP networks has extremely high traffic rates, schemes for achieving robust transmission such as forward error correction (FEC) must also have very high rates. We have also developed techniques for attaining reliable transmission, i.e., the use of low-density generator matrix (LDGM) codes to achieve high throughput FEC, application-layer multicasting, and monitoring network status at multiple points.
KW - 4K
KW - 8K
KW - Application layer multicast
KW - Forward error correction
KW - IP network monitoring
KW - Live video streaming
KW - Synchronization
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U2 - 10.1016/j.future.2010.11.025
DO - 10.1016/j.future.2010.11.025
M3 - Article
AN - SCOPUS:79958849107
SN - 0167-739X
VL - 27
SP - 952
EP - 959
JO - Future Generation Computer Systems
JF - Future Generation Computer Systems
IS - 7
ER -