World Cup Frame-compatible 3DTV Post Mortem
July 26, 2010
JOHANNESBURG, SOUTH AFRICA: The 2010 World Cup
is over, leaving in its wake the launch of 3DTV in many areas of the world. DirecTV
and ESPN predicated U.S. 3DTV launches on the stereoscopic coverage of the
France Telecom’s GlobeCast provided contribution for the 28 live games done in
3D, according to John Moulding of
VideoNet. Providing 3D
video images involved capturing separate video streams for left- and right-eye
views in JPEG2000 compression, he notes. The streams were converted at the
International Broadcast Center in Johannesburg using Sensio gear into an HD SDI
frame-compatible (side-by-side) output encoded in MPEG-2. The signal was sent
by satellite to London, and from there, distributed worldwide.
Besides ESPN in the United States, Moulding said TV providers in Japan, China,
Australia, France and Spain also took the 3D feed. MPEG-2 was the primary
contribution format, but a Globecast executive told Moulding that future events
would likely utilize separate, synchronized signals compressed with MPEG-4, as
with Multiview Coding. The latter format would require more bandwidth for
transporting images on multiplexed channels, though France’s M6 has
experimented with the configuration.
Frame-compatible 3DTV, in which left- and right-eye images are displayed
side-by-side, is becoming the predominant format for stereoscopic television.
Format standards are still under development, however, and European
broadcasters are agitating for one that works with two-dimensional broadcasts.
survey of European Broadcasting
Union members revealed that more than half preferred a service-compatible
format. Additional data in the program stream provides the information
necessary for 3DTVs to create 3D images in the service-compatible mode.
Moulding provides more details of the World Cup 3D coverage at “
The Frame-compatible 3D World
-- Deborah D. McAdams
July 6, 2010: “ITU Illustrates
“Each eye’s picture appears on the 3D TV screen, one after the other.
Images are sent to the eyes at a rate of around 50-60 images per second, making
the process imperceptible to the viewer. Special glasses make sure each eye
gets the intended picture.”
June 17, 2010: “Comcast Will Switch to
MPEG-4 for 3DTV in August”
Comcast plans to transmit 3D content exclusively using MPEG-4 H.264.
January 20, 2010
a 3DTV Programming Guide”
“We’re trying to avoid floating the guide in front of the action. We discovered
that it was an improvement to push the guide behind the screen and let the
action play over it.”
January 20, 2010
3DTV Update from the MPEG Industry Forum”
The emerging MPEG-4 MVC (multiview coding) scheme supports the simulcast of independent,