data compression link collection

Lossy Compression

This category covers lossy compression methods that can’t be pinned down to one of the more refined topics, such as JPEG or MP3. In some cases, the items here are esoteric algorithms that don’t’ merit their own topics. In other cases, they span one or more existing topics. The unifying theme is of course that they are lossy. This means that after a compression/decompression cycle, the data set will be modified. Ideally, when compression image or sound files, the loss is either minimal or undetectable by human observors.

Multimedia Computing and Networking 2002

The term “Multimedia” obviously covers a lot of different topics. Compression is one of them, and there is certainly a great deal to learn about compression and media formats at this conference.


Posted in February 24th, 2002

Wikipedia entry: Lossy Compression

This Wikipedia entry describes lossy data compression. In addition to a nice overview, includes links to many lossy compressors for still image, moving image, music and sound.


Posted in January 27th, 2002

Irreversible Kompressionsalgorithmen

A study of lossy compression algorithms, including discussion of JPEG, MPEG, and the DCT.


Posted in December 24th, 2001

U of F Says Compressing Medical Images Risky

A study at the University of Florida showed that even mildly compressing coronary angiograms led to an increase in diagnostic errors.


Posted in December 5th, 2001

Compression of Multimedia Information

by A.Ratushnyak. A short discussion related to the compression of audio and pictures. A Russian version of the paper can be found at
A Library readher had this to say: Worth reading 2 or 3 times.

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Posted in March 18th, 2001

Publications by Wil Osberger

Wil Osberger has published a bunch of papers dealing the perceptual image assessment. You can see most of them here. While this isn’t strictly a compression topic, it is obviously of critical importance to lossy compression techniques.


Posted in July 4th, 2000

GeoEnergy, Inc.

Their home page advertises GeoEnergy as “The leader in fast data compression algorithms for the oil and gas industry.” Quite a few algorithms are listed, all of which work on various types of collected seismic data.


Posted in March 23rd, 2000

Signal and Image Processing Group

The University of Bath has a group that is advertised as “world leaders in still image and video coding.” They appear to be interested in lossy compression based on DCT, Wavelets, and Fractal compression. This is their home page.


Posted in November 23rd, 1999