3dtv-over-ip - gunnar florus, nexteq
DESCRIPTION
Presentation from TelecomLine 2010 covering how to plTRANSCRIPT
3DTV-over-IP Copyright ©2010 Nexteq AS. All Rights Reserved.2
#tcln #3dtv@nexteqadvisory
3DTV-over-IP Copyright ©2010 Nexteq AS. All Rights Reserved.
• Young Company, Long Experience
• Specialising in realtime-IP
• Passion for new technology
ABOUT US
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3DTV-over-IP Copyright ©2010 Nexteq AS. All Rights Reserved.
DEFINITION
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“3D TV is an optical illusion of depth in living images that demands lots and lots of bandwidth”
3DTV-over-IP Copyright ©2010 Nexteq AS. All Rights Reserved.
CHALLENGES
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Anaglyphic?
MPEG-4 MVC?
IAT?Jitter?
Auto-
stereo
scopic?
1080
i vs 72
0p?
Active Shutters?
Polarised?
UDP?
STB?
SD→HD→
3D? Parallax barrier?
Holographic?
3DTV-over-IP Copyright ©2010 Nexteq AS. All Rights Reserved.
SHORT HISTORY
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• Conceptualised in 1838 (!)
• First 3D-movie in 1915
• Popular in the 1950’s
• IMAX 3D in the 1990’s
• 30+ Hollywood-movies planned coming year
3DTV-over-IP Copyright ©2010 Nexteq AS. All Rights Reserved.
3DTV TODAY
• Canal Digital to test during French Open in June
• ESPN 3D launch June 2010
• Sky: Manchester vs Man Utd. in selected pubs January 2010
• Korea launched 4 3D-channels 19th May 2010
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3DTV-over-IP Copyright ©2010 Nexteq AS. All Rights Reserved.
DISPLAY TYPES
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Auto-Stereoscopic
StereoscopicStereoscopicStereoscopic
No glasses No glasses
Anaglyph Passive
Polarized glasses Passive
Active shutters Active
3DTV-over-IP Copyright ©2010 Nexteq AS. All Rights Reserved.
TECHNOLOGIES
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Compression
3D format
Resolution
Display Type
MPEG-2 MPEG-4 AVC MPEG-4-MVC
Checkerboard Panels Full Resolution
720p601080p24 /1080i60 1080p60
Active PassiveAuto-
Stereoscopic
3DTV-over-IP Copyright ©2010 Nexteq AS. All Rights Reserved.
3DTV IN THE NETWORK
•Needs 50-70% more bandwidth than HDTV• SDTV: 4-6Mbit CBR
• HDTV 1080p: 15-18Mbit (BBC, Discovery)
• HDTV 720p:9 Mbit (NRK)
• 3DTV: Up to 32Mbit
• In addition to existingHD channels
• Increased compression means increased sensitivity to jitter
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3DTV-over-IP Copyright ©2010 Nexteq AS. All Rights Reserved.
TRANSMISSION
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90 % of all packet loss is due to “excessive jitter”
TID
UDP UDPUDP UDP TV multicast with jitter
UDP
IAT
IAT
TV multicast without jitter UDP UDPUDP UDP UDP UDP
UDP UDP UDP UDP UDP TV multicast with 2 packet losses UDP
IAT
3DTV-over-IP Copyright ©2010 Nexteq AS. All Rights Reserved.
SUMMARY
• Plan ahead for 3DTV
• Consequences of jitter and packetloss grow exponentially from SD→HD→3D
•Maintain full control from play-out to Set Top Box
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