[M4IF Discuss] On2 and IPR
Craig Birkmaier
craig pcube.com
Sat Mar 23 10:30:46 EST 2002
At 6:37 PM -0800 3/22/02, William J. Fulco wrote:
>Oliver,
>
>You'd be truly amazed how much 1980s technology STILL works and is
>useful for video-compression (speaking as someone that just loves to
>troll around the UCLA Engineering Library stacks for fun :-) Think
>of it this way - there were techniques developed for
>research-situations back in the 70s and 80s that needed very
>special-purpose hardware in those days... things that today can be
>done on a simple microprocessor in software... don't give "1982
>video compression technology" the short shrift so quickly :-)
>Granted - most technologies (unless military) weren't talking
>0.10bpp back then - but, really - wouldn't you be just as happy with
>a 0.3bpp that gave you good quality and could be encoded and decoded
>(today) in software :-)
>
Excellent point Bill.
Personally, I have not seen much in the MPEG-2 patent pool that is
all that revolutionary. The majority of the significant IP is related
to the coding of interlace, which is something that we would all be
better of without. Most of the rest is incremental improvements in
motion compensated prediction, created in large measure to
re-establish IP developed in the '70s and early '80s that would soon
enter the public domain. This looks like an effort to entrench the
interests of the18 companies that made a massive investment in the
MPEG-2 process, and have since used that standard to proliferate an
SDTV paradigm around the world that protects their investments in
interlace and "601."
--
Regards
Craig Birkmaier
Pcube Labs
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