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The Q-Coder is a new form of adaptive binary arithmetic coding. The binary arithmetic coding part of the technique is derived from the basic concepts introduced by Rissanen, Pasco, and Langdon, but extends the coding conventions to resolve a conflict between optimal software and hardware implementations. In addition, a robust form of probability estimation is used in which the probability estimate is derived solely from the interval renormalizations that are part of the arithmetic coding process. A brief tutorial of arithmetic coding concepts is presented, followed by a discussion of the compatible optimal hardware and software coding structures and the estimation of symbol probabilities from interval renormalization.
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William B. Pennebaker
IBM Research - Thomas J. Watson Research Center
J. L. Mitchell
Florida State University
Glen G. Langdon
The University of Sydney
IBM Journal of Research and Development
University of California, Santa Cruz
IBM (United States)
IBM Research - Thomas J. Watson Research Center
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Pennebaker et al. (Tue,) studied this question.
synapsesocial.com/papers/6a127e75e407b26696350419 — DOI: https://doi.org/10.1147/rd.326.0717
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