December 2002
Intermediate to advanced
454 pages
25h 39m
English
Content preview from Lossless Compression Handbook
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170 PART II/COMPRESSION TECHNIQUES
Raw
Text
Burrows-Wheeler
Permutation
Move-to-Front
or
Recency
Recoding
FIGURE 7.1
Stages of Burrows-Wheeler or block sorting compression.
Statistical
Compressor
Compressed
Text
v
7.2 THE BURROWS-WHEELER ALGORITHM
In its original form, the compression algorithm processes the text in the three stages shown in
Fig. 7.1. Later developments may vary from this basic scheme.
For now we just outline each of these three steps"
1. The heart of the compression algorithm is the Burrows-Wheeler transformation on the
incoming text, which permutes or reorders the text into a form which is especially suited ...
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