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Binary Signal Compression Using DCT Signs
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Gerardo Orozco
Dec 12, 2012, 7:53:46 PM12/12/12
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Hello everyone :)
I've just joined the discussion group.
I stumbled with this interesting academic paper describing a DCT based compression technique that states the following: "Consequently it is found that
even random binary sequence can be compressed into
half bits of the original signal if the correlation length
of signal has relatively long correlation."
My math-fu is not very strong,so I would like the experts' opinions on the described technique.
My first question would be, in layman's terms, what does the phrase "correlation length of signal has relatively long correlation" mean?
The second would be if you think the technique has a solid foundation? I know that claiming compression of a random sequence goes against the principles of information theory - could it be that this is a paper created just to back a recursive-compression scam? (I didn't find any other academic document citing this technique)
Cheers everyone!
Gerardo
I've just joined the discussion group.
I stumbled with this interesting academic paper describing a DCT based compression technique that states the following: "Consequently it is found that
even random binary sequence can be compressed into
half bits of the original signal if the correlation length
of signal has relatively long correlation."
My math-fu is not very strong,so I would like the experts' opinions on the described technique.
My first question would be, in layman's terms, what does the phrase "correlation length of signal has relatively long correlation" mean?
The second would be if you think the technique has a solid foundation? I know that claiming compression of a random sequence goes against the principles of information theory - could it be that this is a paper created just to back a recursive-compression scam? (I didn't find any other academic document citing this technique)
Cheers everyone!
Gerardo
Gerardo Orozco
Dec 12, 2012, 8:35:48 PM12/12/12
to
Duh! I forgot to include the reference to the document. Here it is:
http://www-ist.massey.ac.nz/conferences/icara2004/files/Papers/Paper41_ICARA2004_240_243.pdf
http://www-ist.massey.ac.nz/conferences/icara2004/files/Papers/Paper41_ICARA2004_240_243.pdf
Errol Smith
Dec 15, 2012, 9:59:43 PM12/15/12
to
You would be better posting this in comp.compression - that actually has
readership/discussion..
readership/discussion..
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