The Data Compression News Blog

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    So many of today’s files are already compressed (using old, outdated algorithms) that newer algorithms don’t even get a chance to touch them.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

Archive for October, 2005

A Faster GeoJasPer Is Now Available

19th October 2005

Greg Coats announced an upgrade to GeoJasper, offereing 2 to 10 times speedup for Jpeg2000 conversions. Thanks to a contribution by Kaspar.

Read More | Posted by Sachin Garg | 3 Comments »

Another one pays Forgent

18th October 2005

Forgent Announces Patent License Agreement With Color Dreams, Inc. Following the filing of the litigation on ‘672 patents, six companies that were defendants have entered into license agreements.

Read More | Posted by Sachin Garg | 2 Comments »

BetaNews: Gates says that Blu-ray DRM is ‘Anti-Consumer’

18th October 2005

“It’s not the physical format that we have the issue with, it’s that the protection scheme on Blu-ray is very anti-consumer.” Gates also questioned how much next-gen DVD formats will even matter, saying content will soon be streamed directly or stored on a hard disk.

Read More | Posted by Sachin Garg | 2 Comments »

Gao offers eval of G.729 codec

16th October 2005

Want to hear what a G.729 codec sounds like? Gao makes it easy.

Read More | Posted by Mark Nelson | Add Comment »

No good free voice codecs?

15th October 2005

Nathan Willis of News Forge raises some serious concerns on how most upcoming VOIP solutions are using proprietary codecs.

Read More | Posted by Sachin Garg | Add Comment »

The MPEG-21 Digital Item Declaration standard can now be freely downloaded.

15th October 2005

With work on MPEG-4 almost complete, MPEG has been making some steady progress with MPEG-7 and MPEG-21. The MPEG-21 Digital Item Declaration standard can now be freely downloaded.

Read More | Posted by Sachin Garg | Add Comment »

PAsQDa 4.1b bug fix

13th October 2005

Matt Mahoney announces a minor bug fix in PAsQDa 4.1, probably in dictionary preprocessing.

Read More | Posted by Sachin Garg | Add Comment »

DTS Partners to Bring DCI-Compliant Encoding Technologies for D-Cinema to Market

13th October 2005

Now Jpeg2000 also gets used for digital cinema, maybe Jpeg2000 will become mainstream.

Read More | Posted by Sachin Garg | Add Comment »

Microsoft to pay $761M to RealNetworks

13th October 2005

CNN: Microsoft Corp. Tuesday said it will pay RealNetworks Inc. $761 million to resolve their disputes, including a lawsuit that accused the world’s largest software maker of using its dominance in operating systems to promote its rival media software. They will now also work togther to promote each other’s technolgies and services.

Read More | Posted by Sachin Garg | Add Comment »

WAN Optimization and Data Compression

11th October 2005

Demand for products to boost throughput and bandwidth efficiency of WAN networks has exploded. A detailed look at “how much”.

Read More | Posted by Sachin Garg | 1 Comment »