The Data Compression News Blog

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

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  • Bijective BWT (2 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 (107 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

    So many of today’s files are already compressed (using old, outdated algorithms) that newer algorithms don’t even get a chance to touch them.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.

Video Codec Tutorial Time

Posted by Mark Nelson on 31st March 2006 | Permanent Link

Okay everyone, it’s tutorial time, and this time we’re talking about video codecs. History, usage, implementation, tradeoffs, the works. EE Times has a nice article written by Jeremiah Golston and Dr. Ajit Rao, from Texas Instruments.

These two experts want you to know all about video compression so you can start buying TI DSPs and dumping them into your cell phones, TVs, DVD players, etc. That’s cool, but you don’t have to buy anything to read the fine article. Learn all about MPEG-2, MPEG-4/H.264/AVC, Windows Video, you name it.

One Response to “Video Codec Tutorial Time”

  1. s.ravindran Says:
    April 5th, 2006 at 9:58 pm

    wavelet encoding techniques–QuVIS, Cineform, Aware–comparison with VC1 and MPEG2 HD –for file size og a 150 minute movie and S/N at play back

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This entry was posted on Friday, March 31st, 2006 at 9:20 am by Mark Nelson. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.