Home > Archive > Compression > March 2006 > Fast codec with high compression ratio and minimum required resources
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Fast codec with high compression ratio and minimum required resources
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| Sportman 2006-03-10, 6:55 pm |
| Maybe interesting to read 179 pages :-)
This invention provides a novel single-pass and multi-pass synchronized
encoder and decoder, performing order(s) of magnitude faster data
compression and decompression, at any compression ratio with the higher
or the same perceived and measured decompressed image quality in
comparison with the best state-of-the-art compression methods, using
order(s) of magnitude less system resources (processor complexity,
memory size, consumed power, bus bandwith, data latency). These
features are achieved using novel direct and inverse non-stationary
filters for the recusive octave direct and inverse subband
transformation, novel simple context modeling and symbol probability
estimation using a minimum number of histograms with the fast
adaptation for the sign and the magnitude of the transformation
coefficients, a novel accelerated range coder without division
operations, and a novel synchronisation of the compressed data.
http://v3.espacenet.com/origdoc?DB=...0&QPN=EP1604528
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| Grumble 2006-03-17, 7:55 am |
| Sportman wrote:
> Maybe interesting to read 179 pages :-)
>
> This invention provides a novel single-pass and multi-pass
> synchronized encoder and decoder, performing order(s) of
> magnitude faster data compression and decompression [...]
You can't patent algorithms in Europe (yet).
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| Marco Al 2006-03-17, 7:55 am |
| Grumble wrote:
> You can't patent algorithms in Europe (yet).
Getting a patent on an algorithm is no problem in Europe, even if
enforceability is iffy. The forces that be together with the European
patent office have been trying to create law by just granting these kind
of patents and using that fact as a circular argument for their validity
for a long time.
Marco
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| Grumble 2006-03-17, 6:55 pm |
| Marco Al wrote:
> Grumble wrote:
>
>
> Getting a patent on an algorithm is no problem in Europe, even if
> enforceability is iffy. The forces that be together with the European
> patent office have been trying to create law by just granting these
> kind of patents and using that fact as a circular argument for their
> validity for a long time.
Reason enough to support the Foundation for a Free Information
Infrastructure.
http://www.ffii.org/
http://swpat.ffii.org/
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