GGMMTV PROPRIETARY COMPRESSION TECHNOLOGY
From the onset GGMMTV has identified the need to improve
on H.264 compression technology. It is not that H.264
is an inferior compression technology, but it was designed
back in 2003 and was for video streaming requiring a
comparatively higher bandwidth (compared to today's
standard). In this respect H.264 encoded 720x576/25fps
video will strain in today's demand of DVB using a bandwidth
of less than 786Kbps (the practical bandwidth of 3.5G
HSDPA).
Understanding that the world is becoming mobile, and
that bandwidth is the key to mobility and global coverage,
GGMMTV sees that there is a real need for advance compression
technology. The criterion of GGMMTV proprietary compression
technology is simple: to achieve the best possible streaming
video quality using a bandwidth of less than 1Mbps.
GGMMTV's proprietary compression technology: HVMT (High-quality
Video Media Technology) is so advanced that it enables
a standard 2.5G mobile phone with GPRS access to view
streaming video at 176x144/6fps. Noting GPRS has a practical
usable bandwidth of less than 56Kbps! During a live
demonstration to a leading mobile network provider in
Hong Kong, their senior engineer/developer said "ˇKseeing
this live feed via GPRS is a miracle".
The following chart compares the PSNR (Peak Signal
to Noise Ratio) / Bit Rate in Kbps between our proprietary
HVMT compression with H.264 (encoded using Nero Burning
ROM), Windows Media Video 9, and MPEG-4 (DivX).
Typical values for the PSNR in image and video compression
are between 30 and 50 dB (decibels), where higher is
better.
Our proprietary HVMT compression maintains best quality
at all Bit Rates, even at 100 Kbps, HVMT manages to
maintain a PSNR of over 40 dB.
HD TV for Personal Computers
Using this same proprietary compression technology,
GGMMTV is able to encode 1280x720/25fps video using
a bandwidth of less than 1.5Mbps, and 720x576/25fps
video using a bandwidth of less than 512Kbps. Therefore
for 720p HDTV, if the monitor output of a notebook computer
is connected to one of the latest LCD HDTV screen, HD
TV becomes immediately available.
The high video quality with a low bandwidth requirement
is the key to GGMMTV's HVMT compression. Another practical
use will be to provide high quality VOD 720x576/25fps
at less than 512Kbps to viewers overseas.
The delivery method deployed by GGMMTV can either be
Server-to-Client or Peer-to-Peer. With all things being
equal (i.e. same number of peers, same file size, and
same bandwidth) our proprietary compression technology
will enable our player ("GMT Player") to deliver
a more stable and jitter-free content than any other
players on the market: simply because our delivery method
requires less bandwidth. This extra stability due to
the lower bandwidth requirement is vital in the global
Internet environment where Internet transmission can
be quite unstable.
HQ TV for 3G Mobile Phones
GGMMTV's HVMT compression already allows audio/video
to be broadcasted to GPRS enabled mobile phones. Thus
with a higher bandwidth of the 3G and 3.5G mobile networks,
GGMMTV is able to deliver unprecedented sound and video
to these mobile phones. The fact that GGMMTV is not
using any H.264 hardware based graphics accelerator,
literally any 3G enabled mobile phones will be able
to view High Quality TV transmitted via the 3G network
at 320x240/15fps QVGA.
Electronic News Gathering ("ENG")
Already on beta testing, GGMMTV has designed and implemented
a mobile system (using a high specification notebook
computer and USB video capture device) which allows
a live TV signal to be captured (720x576/25fps) and
transmitted over a wireless IP connection of 512Kbps
back to the broadcaster's studio. The implication is
far and wide reaching. No longer will ENG require a
microwave transmitter for live broadcasts, and an uplink
to a satellite transponder will no longer be a necessity,
saving the broadcaster transportation and transmission
costs.
Next Generation Compression
GGMMTV will not rest on its laurels, our technical
team is in the final stages of implementing the next
generation proprietary compression technology enabling
1280x720/25fps video streaming at 384Kbps. GGMMTV hopes
to have this feature before the end of 2008, although
a beta version is already available.
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