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Uncompressed 8K Video Streaming over 100Gbps Experimental Network Hiroyuki Kimiyama NTT Network Innova�on Laboratories (c) Copyright: Nippon Telegraph and Telephone, 2014 1
Uncompressed 8K Video Streaming over 100Gbps Experimental Network
Hiroyuki Kimiyama NTT Network Innova�on Laboratories
(c) Copyright: Nippon Telegraph and Telephone, 2014 1
Outline
What is 8K video? Mo�va�on 8K video format 8K video transmission system – Synchroniza�on mechanism
Experiments – On-‐demand streaming & real-‐�me transmission
Conclusion
(c) Copyright: Nippon Telegraph and Telephone, 2014 2
What is 8K video UHDTV (Ultra High Defini�on TeleVision) – 4K : 3840 x 2160 pixels (4 �mes as many pixels as HDTV) – 8K : 7680 x 4320 pixels (16 �mes as many pixels as HDTV)
Proposed by NHK Science and Technology Research Laboratories (NHK Giken) Defined and approved by ITU-‐R and SMPTE
(c) Copyright: Nippon Telegraph and Telephone, 2014 3
7680 pixels
3940 1920
1080
2160
4320 pixels
8K
4K HDTV
Mo�va�on Demand of handling high-‐resolu�on video increases
Handling: Send, receive, store, playback, etc – ex. Sports events are shot and delivered to public viewing as UHDTV (4K, 8K) Olympic games, World cups, Major league baseball games, Football, etc – Transmi�ed 8K video of World Cup games from Brasil to Tokyo and other ci�es in 2014
8K video equipment is now available in Japan 8K camera: AH-‐4800 (Astrodesign, Inc.) 8K recorder: HR-‐7512-‐C (Astrodesign, Inc.) 8K projector: DLA-‐VS4800 (JVC Kenwood Corp.) 8K glass-‐free 3D LCD monitor: Prototype (Sharp Corp.)
(c) Copyright: Nippon Telegraph and Telephone, 2014 4
Mo�va�on of research (Cont.) Network carriers started providing over 10-‐Gbps ultra-‐high speed such as 100-‐Gbps network as commercial service – NTT Communica�ons, etc
Major network switch venders started providing 100-‐Gbps Network equipment (Routers and Switches)
Cisco, Juniper, etc Equipment to handle not 8K but 4K video over ultra-‐high-‐speed network without compression is now available – Except for video transmission equipment, such as
Video – IP packet converter IP video server
Research goal – Establishing a technique which enable to construct environment to handle 8K video in real �me
(c) Copyright: Nippon Telegraph and Telephone, 2014 5
8K video format “Dual green format” – Currently available 8K format – Not full spec but very similar quality as full spec 8K – Enable to make camera from four 4K CCDs
Green x 2, Red x 1, Blue x 1 Full spec 8K CCD is NOT commercial based product
– 60 fps (progressive), 10 bits/pixel – Data rate : 24 Gigabit/sec (includes ANC area)
(c) Copyright: Nippon Telegraph and Telephone, 2014 6
1 3
4 2
1 3
4 2
1 3
4 2
7680 pixels
4320 pixels
8K video signal output Dual-‐green format 8K camera CCU outputs 16 HD-‐SDI signals Handling 8K video requires to handle 16 HD-‐SDI signals simultaneously
(c) Copyright: Nippon Telegraph and Telephone, 2014 7
8K video frame (Dual green)
1/4 8K = 4K
1/16 8K = HD
1/16 8K
1/16 8K
1/16 8K
1/4 8K
1/16 8K
1/16 8K
1/16 8K
1/16 8K
1/4 8K
1/16 8K
1/16 8K
1/16 8K
1/16 8K
1/4 8K
1/16 8K
1/16 8K
1/16 8K
1/16 8K
HD-‐SDI x 16
HD-‐SDI / IP converter
HD-‐SDI / IP converter
HD-‐SDI / IP converter
HD-‐SDI / IP converter
Outline of 8K video transmission system
Real-‐�me 8K video transmission system – Integrate two systems
1. Sending and receiving 8K video from cameras in real �me 2. Storing 8K video from camera into storages and playing
back any 8K-‐video to monitor on demand
(c) Copyright: Nippon Telegraph and Telephone, 2014 8
CCU 8K Camera
HD-‐SDI/IP Converters
16 HD-‐SDIs
Network switches
8K monitor
CCU
16 HD-‐SDIs
8K Camera
8K monitor
High speed video servers
8K video transmission system
Two main components – XMS server
Scalable ultra-‐high speed IP video server system based on PC cluster technology developed by NTT Labs. Sends and receives mul�ple uncompressed 4K video streams in real �me through IP network Accepts and transfers video files with FTP protocol Supplied by NTT-‐IT Corp. as commercial product Smallest system, which can be configured with one PC, can record and play back up to 4K@60p high-‐resolu�on video Please refer: h�p://www.mediaorchestra.com/ipvs/english/product/p01/index.html
(c) Copyright: Nippon Telegraph and Telephone, 2014 9
8K video transmission system (Cont.)
Two main components (Cont.) – QG-‐70
Uncompressed IP video transmission system with low latecy – Supplied by PFU Limited – Sends and receives up to 4K@30p video each unit via 10GbE – Developed with NTT Labs’ technology
Please refer: h�p://www.pfu.fujitsu.com/en/ipvideo/
(c) Copyright: Nippon Telegraph and Telephone, 2014 10
Synchroniza�on Why “synchroniza�on” is required? – 8K monitor requires 16 HD-‐SDI signals which have completely same frequency and same phase each other 8K monitor does not have enough buffer to absorb ji�er or difference of frequency of input HD-‐SDI signals
– XMS system Smallest system is highly cost-‐effec�ve, but it can not play back 8K (up to 4K@60p) per unit XMS records 8K video as independent 16 HD video streams for scalability reason It is PC-‐based system which has low accuracy quartz. So, each XMS system maybe work with different clock
– QG-‐70 High accuracy quartz Four QG-‐70s are required for 8K-‐video transmission Maybe output HD-‐SDI signals different phase each QG-‐70
– Mul�ple XMSs and QG-‐70s must be introduced for 8K video transmission system
– Synchroniza�on is required in case of play back 8K video from XMS systems We have developed and implemented synchroniza�on mechanism shown in following slides for XMS and QG-‐70 to transmit UHDTV
(c) Copyright: Nippon Telegraph and Telephone, 2014 11
Synchroniza�on (Cont.) Frequency and phase synchroniza�on – Introduce reference signals into all receiver QG-‐70s to synchronize frequency and phase between all output HD-‐SDI signals
– Each receiver QG-‐70 sends “synchroniza�on packets” to sender XMS system to synchronize frequency between receiver and sender
(c) Copyright: Nippon Telegraph and Telephone, 2014 12
QG-‐70 (Receiver)
XMS (Sender)
8K monitor
Sync signal generator Synchroniza�on packets Adjust
frequency
HD-‐SDI x 4
Adjust frequency and phase
Synchroniza�on (Cont.) Frame number synchroniza�on – XMS records 16 fragments of same 8K-‐video frame with same ID – Select one QG-‐70 among receivers as “Master” – Master QG-‐70 broadcast the ID with which it currently play back frame to all other receiver
We can get complete synchroniza�on at receiver side by using above methods
And also get complete synchroniza�on using mul�ple 10-‐Gbps networks with different delay because of this scalable method
(c) Copyright: Nippon Telegraph and Telephone, 2014 13
ID=1 ID=2 ID=3
ID=1 ID=2 ID=3
ID=1 ID=2 ID=3
Report current “ID”
Relay current “ID”
QG-‐70 (Receiver)
ID=1
ID=1
ID=1
Experiment Objec�ve of experiment
– Establishing way to configure 8K video handling (send, receive, store, and play) system
Outline of experiment – Send and receive one uncompressed 8K@60p video bi-‐direc�onally between Tokyo and
Osaka (Osaka is 400 km apart from Tokyo) – Send and receive one uncompressed 4K@60p video bi-‐direc�onally for video
conference at the same �me
Date – Feb. 5, 2014 – Feb. 7, 2014
Experiment team was organized by : – Kanagawa Ins�tute of Technology (KAIT) – Nara Ins�tute of Science and Technology (NAIST) – PFU Limited – Astrodesign Inc. – NTT-‐IT corpora�on – Na�onal Ins�tute of Informa�on and Communica�on Technology (NICT) – NTT Network Innova�on Laboratories
(c) Copyright: Nippon Telegraph and Telephone, 2014 14
Tokyo Osaka
System configura�on
(c) Copyright: Nippon Telegraph and Telephone, 2014 15
100Gbps Network provided by NTT Communica�ons
8K@60P Camera
KDDI Otemachi building @Tokyo
Grand front building @Osaka 8K@60P with FEC (26Gbps)
SHARP 8K monitor
QG70 x 4 QG70 x 4
8K monitor (4K LCD x 4)
4K LCD
HD LCD x 4 4K camera
4K camera
8K@60P with FEC (26Gbps)
4K60P（14Gbps)
4K60P（14Gbps)
QG70 x 2 QG70 x 2
8K SSD recorder
XMS x 2
8K SSD recorder
or
Results@Otemachi
(c) Copyright: Nippon Telegraph and Telephone, 2014 16
8K real-‐�me streaming video from XMS@Osaka on 8K monitor made from four 4K LCDs
4K live video from Osaka
QG-‐70s @ Otemachi
Results@Osaka
(c) Copyright: Nippon Telegraph and Telephone, 2014 17
8K real-‐�me streaming video on SHARP 85” 8K LCD from Recorder@Tokyo High �me-‐resolu�on traffic meter
developed by KAIT (measured only 8K video stream)
High resolu�on test? Make sure resolu�on limita�on of 8K video Shot outside from Otemachi building and send it to Osaka Watch it in Osaka!
(c) Copyright: Nippon Telegraph and Telephone, 2014 18
High resolu�on test? (Cont.)
(c) Copyright: Nippon Telegraph and Telephone, 2014 19
Summary
Summary – Succeeded in bi-‐direc�onal transmit uncompressed 8K and 4K video
Total bandwidth is about 40 Gbps – This experiment results show:
Synchroniza�on mechanisms work correctly We can get environment which is enable to handle over 10-‐Gbps high quality video over network in real �me
– This is NOT our goal – This is star�ng point of our research
Acknowledgement – We would like to express deepest apprecia�on to:
NTT Communica�ons Corp. provided 100-‐Gbps network Sharp Corp. provided 8K LCD monitor Hokkaido Television Broadcas�ng Co. Ltd. shot 8K video for this demo during deep snowing
(c) Copyright: Nippon Telegraph and Telephone, 2014 20
