The Data Compression News Blog

Your daily update on the most recent compression techniques, algorithms, patents, products, tools and events.

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Recent Posts

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    So many of today’s files are already compressed (using old, outdated algorithms) that newer algorithms don’t even get a chance to touch them.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

Archive for May, 2006

New Large Text Compression Benchmark

31st May 2006

Matt Mahoney (author of the excellent PAQ series of compressors) started a new data compression benchmark, made up of really large text files. The goal of most benchmarks is to try to find the “best overall” algorithm, this one focuses only on compressors trying to solve the problem of natural language text compression

Read More | Posted by Sachin Garg | Add Comment »

Oooh, Forgent, I think that’s going to leave a mark

26th May 2006

The USPTO appears to have let a lot of the air out of the JPEG patent that Forgent Networks has been using as a cash cow.

Read More | Posted by Mark Nelson | 5 Comments »

My Very Bad Euclid Discoveries Experience

25th May 2006

Euclid Investors asked me to set up a BBS where they could chat about their upcoming fortunes. Ever heard the one about no good deed going unpunished?

Read More | Posted by Mark Nelson | 57 Comments »

Microsoft: JPEG? What’s that?

25th May 2006

Microsoft is tossing a new image format out on the playing field. Will this hasten my predicted demise of the JPEG format?

Read More | Posted by Mark Nelson | 2 Comments »

ZPack File Format, spec and tools

10th May 2006

Vaguely PAQ like file format supporting compression and read/write operation (as zipfiles are not that well suited to read/write).

Read More | Posted by Sachin Garg | 2 Comments »

Sony supporting AAC

10th May 2006

Sony has caved in to the dominance of the iPod.

Read More | Posted by Mark Nelson | Add Comment »

Will China Play Nice?

3rd May 2006

Ongoing efforts to get China to swallow MPEG-2 royalty payments seem to be bearing some fruit.

Read More | Posted by Mark Nelson | Add Comment »