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    • 4. 发明申请
    • EXTRACTING AND MODIFYING A WATERMARK SIGNAL FROM AN OUTPUT SIGNAL OF A WATERMARKING ENCODER
    • 从WATERMARKING编码器的输出信号中提取并修改水印信号
    • US20160196630A1
    • 2016-07-07
    • US15001486
    • 2016-01-20
    • TLS Corp.
    • Barry Blesser
    • G06T1/00G06K9/52H04N19/467
    • G06T1/0021G06K9/52G06T2201/0065G06T2207/20056G06T2207/20224G10L19/018H04N19/467
    • A device for extracting a watermark signal from an output signal of a watermarking encoder includes an input configured to receive the input signal and the output signal. The device further includes an adjustment signal generator configured to generate a gain adjustment signal and a delay adjustment signal based on the input signal and the output signal, a gain and delay adjustor configured to adjust gain and delay of the output signal or the input signal based on the gain adjustment signal and the delay adjustment signal, respectively, to generate an adjusted output signal or an adjusted input signal, respectively, and an output configured to transmit a difference between the input signal and the adjusted output signal or a difference between the adjusted input signal and the output signal as the watermark signal.
    • 一种用于从水印编码器的输出信号提取水印信号的装置包括被配置为接收输入信号和输出信号的输入。 该装置还包括调整信号发生器,其被配置为基于输入信号和输出信号产生增益调整信号和延迟调整信号;增益和延迟调整器,被配置为基于输出信号或输入信号调整增益和延迟 在增益调整信号和延迟调整信号上分别产生调整后的输出信号或经调整的输入信号,以及输出,被配置为发送输入信号和调整后的输出信号之间的差值, 输入信号和输出信号作为水印信号。