So, this whole MPAA nonsense got me thinking about technology for
converting old VHS tapes into
modern formats, and doing some quality restoration in the process.
Imagine, for a moment, that you have several 1st or 2nd gen copies of a
given VHS tape, and you're able
to synchronize them. The "signal" here is well-correlated, and the
analog noise is not correlated. It seems
to me that you can use cross-correlation among them to produce a
better-quality image. Now, the USRP has
4 analog inputs, which means you could cross-correlate 4 VHS images,
and produce a better-quality digital
version. You could also do interpolation between lines to produce a
synthetic pseudo-higher-resolution copy.
I'm not volunteering or anything, and I don't even have a subtantial
library of VHS material that I'd like made
into DVDs or anything. Just musing.
--
Marcus Leech Mail: Dept 1A12, M/S: 04352P16
Security Standards Advisor Phone: (ESN) 393-9145 +1 613 763 9145
Strategic Standards
Nortel Networks [EMAIL PROTECTED]
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