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    • 131. 发明授权
    • Transcoding/encoding with code amount adjustment and stuffing bits
    • 用代码量调整和填充位的转码/编码
    • US08619864B2
    • 2013-12-31
    • US12367658
    • 2009-02-09
    • Makoto SaitoHiromu Hasegawa
    • Makoto SaitoHiromu Hasegawa
    • H04N7/12H04N11/02
    • H04N19/132H04N19/15H04N19/162H04N19/177H04N19/196H04N19/40
    • A reference differential value calculation part calculates a reference differential value by subtracting an accumulated value of the target amounts of codes from an accumulated value of the amounts of generated codes from the first period to the (n−1) period. A comparison part compares a cumulative differential value obtained by subtracting the cumulative amount of generated codes from the cumulative target amount of codes of the first to m-th picture frames in the n period with the reference differential value. If the cumulative differential value is larger than the reference differential value, stuffing bits are added to the m-th picture frame to be processed by the amount of codes obtained by subtracting the reference differential value from the cumulative differential value.
    • 参考差分值计算部分从第一周期到第(n-1)个周期的生成代码量的累计值中减去目标代码量的累加值来计算参考差分值。 比较部分将通过从n个周期中的第一至第m个图像帧的累积目标量的累加量减去生成的代码获得的累积差分值与参考差分值进行比较。 如果累积微分值大于参考差分值,则将填充比特添加到通过从累积微分值减去参考差分值而获得的代码量来处理的第m个图像帧。