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A rapid probability estimator and binary arithmetic coder

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1 Author(s)
W. D. Withers ; Dept. of Math., US Naval Acad., Annapolis, MD, USA

We present a new integrated algorithm for binary arithmetic coding and probability estimation, competitive in speed and compression performance with state-of-the-art algorithms such as the QM-coder and Z-coder. The chief innovation is representing the bracketing interval width both directly and by a logarithmic approximation. Performance is evaluated by experiments using bilevel-image data sets. An open-source software version is available

Published in:

IEEE Transactions on Information Theory  (Volume:47 ,  Issue: 4 )