Calculating masking threshold of every critical band by auditory masking model, then quantization steps are controlled by masking threshold and value of audio carrier of the embedding points.
依据听觉掩蔽模型计算每个临界频带的掩蔽阈值,再根据水印嵌入点处的掩蔽阈值和音频载体值的大小共同控制量化步长。
In addition, we present a new quantization method for taking quantization threshold by combining the power of 2 with the square of integer.
另外,通过结合“2的幂”和“整数的平方”两种取量化阈值的策略,我们得到一种新的量化方法。
To fit in with the features of signal and noise, a strategy of gradual changing threshold selection and quantization was presented.
提出一种渐变式阈值选择与量化策略,以适应信号与噪声特点。
To fit in with the features of signal and noise, a strategy of gradual changing threshold selection and quantization was presented.
提出一种渐变式阈值选择与量化策略,以适应信号与噪声特点。
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