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EMBEDDED CODEC CIRCUITRY AND METHOD FOR FREQUENCY-DEPENDENT CODING OF TRANSFORM COEFFICIENTS
EMBEDDED CODEC CIRCUITRY AND METHOD FOR FREQUENCY-DEPENDENT CODING OF TRANSFORM COEFFICIENTS
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机译:嵌入式CODEC电路和变换系数的频率相关编码方法
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摘要
Embedded codec (EBC) circuitry for frequency-dependent coding of transform coefficients, groups a plurality of transform coefficients for an input image block into a plurality of groups of transform coefficients. The plurality of transform coefficients are grouped based on a frequency distribution of the plurality of transform coefficients for the input image block. The EBC circuitry selects a different entropy coding parameter from a set of entropy coding parameters for each group of the plurality of groups, based on the frequency distribution. Thereafter, the EBC circuitry applies an entropy coding scheme from a set of entropy coding schemes to each group of transform coefficients, in accordance with the selected entropy coding parameter.
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