msc@qubix.UUCP (Mark Callow) (09/16/83)
Yes you can play all those tricks with NTSC but you can do similar things
with PAL.
However no amount of processing can recover information that wasn't transmitted
in the first place.
The so called high definition NTSC system uses a digital line buffer so
that the line can be repeated. By repeating every line the scan lines (and
the spaces between them) can be made finer while still filling a large
screen. This trick is intended to make the lines less obvious on projection
TV systems. No new information is present so there is no real change in the
picture quality.
--
Mark Callow, Saratoga, CA.
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