After the analysis of the updating condition for index table and probability interval, an optimized algorithm based on partial parallel scheme was presented for arithmetic encoder(AE) in JPEG2000.
通过对索引表和概率间隔区间更新条件的分析，提出了一种JPEG2000算术编码器的部分并行优化算法。
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On the basis of this character of Hurst index, the Kaiser point can be determined correctly by calculating the Hurst index of AE signal curve.