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View Full Version : Dirac Video Compression | Your thoughts about it?


Who Am I ?
3rd May 2010, 20:04
I just read this article about Dirac/fractal decompression and am mind blown after having looked at the possibilities within it, just wanted to bring it to notice to the people on the board ( obviously all you gurus out there already know about it :p )

I know it is closed source and highly protected (Fractal compression), but what would be the chances of it ( the principal ) being implemented into say x264? I would rather not directly message Dark Shikari for such a general question but Dirac does seem to be the right path (open source) and does have potential and would it be possible to have a build for testing/shootout?

I know these are just rather noobish questions and transformations are already implemented in x264 but why not ask ?:devil:

http://www.bbc.co.uk/rd/projects/dirac/technology.shtml

http://diracvideo.org/worlds-first-high-performance-dirac-video-codec-implementation-available/

Dark Shikari
3rd May 2010, 20:05
Fractal compression has absolutely nothing to do with Dirac. Dirac is wavelet-based.

rkalwaitis
3rd May 2010, 20:09
I was excited about the possibilities of SNOW but it seems to have had slowed in development.

Who Am I ?
3rd May 2010, 20:13
Fractal compression has absolutely nothing to do with Dirac. Dirac is wavelet-based.

Well I thought Fractal compression was wavelet based as well wasn't it ?

http://www.mathworks.com/matlabcentral/fileexchange/14731-wavelet-fractal-compression

Dark Shikari
3rd May 2010, 20:17
Well I thought Fractal compression was wavelet based as well wasn't it ?Not as far as I've seen, unless you call any multi-level breakdown of an image a "wavelet".

Who Am I ?
3rd May 2010, 20:27
Not as far as I've seen, unless you call any multi-level breakdown of an image a "wavelet".

Well, I followed the development of fractal compression and wavelet appeared just like a marketing term for it. Now I'm confused:confused:, just found a document that compares Wavelet and fractal compression:

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.41.3578&rep=rep1&type=pdf

http://research.microsoft.com/en-us/um/people/jinl/paper_1999/ip99jun_fwt.pdf

Dark Shikari
3rd May 2010, 20:44
Well, I followed the development of fractal compression and wavelet appeared just like a marketing term for it. Now I'm confused:confused:, just found a document that compares Wavelet and fractal compression:

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.41.3578&rep=rep1&type=pdf

http://research.microsoft.com/en-us/um/people/jinl/paper_1999/ip99jun_fwt.pdfNo, wavelet is a technical term, fractal is largely a marketing term. Do a bit of reading on Wikipedia first.