02 Then what's JBIG and MHEG?
Description
This article is from the MPEG FAQ, by Frank Gadegast phade@cs.tu-berlin.de with numerous contributions by others.
02 Then what's JBIG and MHEG?
Sorry I mentioned them. Ok, I'll simply say that JBIG is for binary
image compression (like faxes), and MHEG is for multi-media data
standards (like integrating stills, video, audio, text, etc.).
For an introduction to JBIG, see question 74 below.
Ok, I'll stick to MPEG. What has MPEG accomplished?
So far (as of January 1996), they have completed the "Standard
of MPEG phase I, colloquially called MPEG I. This defines
a bit stream for compressed video and audio optimized to fit into
a bandwidth (data rate) of 1.5 Mbits/s. This rate is special
because it is the data rate of (uncompressed) audio CD's and DAT's.
The standard is in three parts, video, audio, and systems, where the
last part gives the integration of the audio and video streams
with the proper timestamping to allow synchronization of the two.
They have also gotten well into MPEG phase II, whose task is to
define a bitstream for video and audio coded at around 3 to 10
Mbits/s.
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