Archives
How Big is Nothing?
Charles Bloom puts the noggin to work on this question. It’s not as foolish as the title might make it sound.
http://www.cbloom.com/news/nullsize.htmlComplexity and Entanglement
Charles Bloom thinks out loud about complexity.
http://www.cbloom.com/news/bio_complexity.htmlRadpack.c
Charles Bloom works up a quick coder that will compress random bytes down to about 6 bits per byte. Quite a feat, but it doesn’t stand up to close scrutiny.
http://www.cbloom.com/news/radpack.cNotes on the MACM-96 Arithmetic Encoder
Charles Bloom talks about this encoder, along with a comment from the author of the algorithm.
http://www.cbloom.com/news/macm.htmlShannon’s derivation of the entropy function
Charles Bloom with his take on the work of Our Founder.
http://www.cbloom.com/news/entropy.htmlread more from " Shannon’s derivation of the entropy function "
No Magic Compressors
Charles Bloom explains why there is no Santa Claus.
http://www.cbloom.com/news/nomagic.htmlMinimum Entropy
Charles Bloom discusses just what Minimum Entroyp should mean to you.
http://www.cbloom.com/news/minent.htmlRM vs. DCC95
Charles Bloom applies the taste test to two different arithmetic coders.
http://www.cbloom.com/news/rm_dcc95.htmlBlocked Entropy
More thoughts about entropy shared with us from Charles Bloom.
http://www.cbloom.com/news/blockent.htmlThe Kraft Inequality
A basic priniciple of coding.
http://www.cbloom.com/news/kraft.htmlACB
A post from Leonid A. Broukhis discussing the mysterious ACB compressor by George Buynovksy.
http://www.cbloom.com/news/leoacb.htmlGeorge Buynovsky’s Post on ACB
ACB is poorly understood. The author, George Buynovsky, has only made a few public comments on the algorithm. This is one of them.
http://www.cbloom.com/news/bygeorge.htmlPeter Fenwick’s LZP = BlockSort = Shannon
Part of a conversation between Peter Fenwick and Charles Bloom.
http://www.cbloom.com/papers/fenlzp.htmlread more from " Peter Fenwick’s LZP = BlockSort = Shannon "
Some notes on implementing Arithcoders
Parts of an email conversation between Charles Bloom and Mark Carrol.
http://www.cbloom.com/algs/arinotes.htmlGeneral Prediction
Some thoughts on modeling from Charles Bloom.
http://www.cbloom.com/news/predict.htmlCompression as the God of Science
Ramblings from a true believer.
http://www.cbloom.com/news/compgod.htmlSqueez
I believe this is the US sales home for the product Squeez, which makes its home in Germany.
http://www.squeez.com/Motion compensation without side information for Wavelet Video
Charles Bloom gives a short bit of thought about just what the title says.
http://www.cbloom.com/news/wave_video.htmlread more from " Motion compensation without side information for Wavelet Video "
A discussion on Audio Coding, January 1999.
Charles Bloom thinks out loud about audio coding.
http://www.cbloom.com/news/audiocoding.htmlread more from " A discussion on Audio Coding, January 1999. "
A Fallacy in Model + Encoder
Charles Bloom thinks out loud about the canonical model + encoder of contemporary data compression.
http://www.cbloom.com/news/fallacy.htmlNotes on Low-N Quantum Information Theory
Charles Bloom thinks about quantum information theory.
http://www.cbloom.com/news/qucoder.htmlread more from " Notes on Low-N Quantum Information Theory "
The 2nd law of stat-mech in info-theory
Charles Bloom puts that physics background into play in the world of information theory.
http://www.cbloom.com/news/2nd_law.htmlMore than one bit per bit?
Charles Bloom discusses the hopelessness of thinking you can get something for nothing.
http://www.cbloom.com/news/moreinfo.htmlUSA Video Interactive
These guys say that they are establishing a leadership position in the streaming video arena. They have some good information about wavelet compression on their page.
http://www.usvo.com/EPIC (Efficient Pyramid Image Coder)
EPIC is a lossy image compression program. It uses subband decomposition followed by an entropy encoder to get its job done. This page has links to the code, papers, references, and more.
http://www.cis.upenn.edu/~eero/epic.htmlThe GIF Controversy: A Software Developer’s Perspective
Some thoughts by a person only known as mcb on the GIF patent controversy.
http://www.cloanto.com/users/mcb/19950127giflzw.htmlread more from " The GIF Controversy: A Software Developer’s Perspective "
Microsoft Cabinet SDK
Microsoft’s CAB SDK, and a little bit of documentation to go with it.
http://msdn.microsoft.com/workshop/management/cab/cabdl.aspCrossePac
A data compression utility. The internal documentation states that this program can create archives using 7 bit ASCII only for maximum portability.
ftp://ftp.cdrom.com/pub/sac/pack/cpac135.zipDeepFreezer for Windows95/NT
The documentation for this program is in an unknown language. It appears to be an archiver that includes a developers kit.
ftp://ftp.cdrom.com/pub/sac/pack/deepf103.exeCompression with Reversible Embedded Wavelets
CREW is a compression algorithm developed by RICOH that has been offered up to the JPEG working group as a potential standard. This page contains a description of the algorithms, along with samples and related documents.
http://www.crc.ricoh.com/CREW/CREW.htmlread more from " Compression with Reversible Embedded Wavelets "
