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All about the most recent compression techniques, algorithms, patents, products, tools and events.

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  • Bijective BWT (7 Comments)

    David Scott has written a bijective BWT transform, which brings all the advantages of bijectiveness to BWT based compressors. Among other things, making BWT more suitable for compression-before-encryption and also give (slightly) better compression.

  • Asymmetric Binary System (113 Comments)

    Jarek Duda’s “Asymmetric Binary System” promises to be an alternate to arithmetic coding, having all the advantages, but being much simpler. Matt has coded a PAQ based compressor using ABS for back-end encoding. Update: Andrew Polar has written an alternate implementation of ABS.

  • Precomp: More Compression for your Compressed Files (3 Comments)

    So many of today’s files are already compressed (using old, outdated algorithms) that newer algorithms don’t even get a chance to touch them. Christian Schneider’s Precomp comes to rescue by undoing the harm.

  • On2 Technologies is Hiring

    There aren’t too many companies working on cutting edge codecs, and of those few this one is hiring. Best of luck.

  • China’s AVS Specifications Available (2 Comments)

    Its old news that China has developed their own Advanced Video Standard to avoid high licensing fees. English translation of the standard is now available, along with the IPR policy. Finally something technical that you can get your hands on to feed your appetite.

More on Blaze and PIXe

Posted by Mark Nelson on 31st October 2005 | Permanent Link

Because of the proprietary nature of their algorithm, it’s difficult to know whether Blaze really has the goods or not. They’ve managed to ink a deal with to deliver video to Russian handsets, but one has to wonder how much scrutiny the technology got in that effort.

You’ve seen this posted earlier on this site, but in essence their secret sauce is described as:

The PIXe compression technology uses an optical principle called “short-range apparent motion”, which eliminates data from an image while fooling the eye into believing that nothing is missing. When used with a secondary compression codec (compressor-decompressor) such as MPEG-4, files can be reduced in size by as much as 90 per cent.

That’s not much in the way of information - any video compressor worth its salt can reduce a file by 90%. The key question is how much of a boost you get beyond standard compression, and at what expense in quality.

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