【Key words】 Video encryption； Video watermarking； H.264 coding； The intra-prediction mode； Quantization coefficient；
基于6个网页-相关网页
coefficient quantization error [数] 系数量化误差
First, the theory and basic knowledge of digital Intermediate Frequency receiver and the Genetic Algorithms principle for optimizing the quantization coefficient of the digital filter are expatiated.
首先，对数字中频接收机理论基础进行叙述。并讲述了用于优化数字滤波器系数的遗传算法原理和算法。
At first, it quantizes the image coefficient vector gotten from DWT with the lattice vector quantization technology, then imbeds the watermark signal into the coefficient.
该算法先通过格矢量量化技术对经d WT变换后的宿主图像的系数矢量进行格矢量量化，然后将水印信号嵌入到量化后的系数中。
A new audio digital watermarking blind algorithm based on MCLT coefficient quantization is presented.
提出了量化mclt变换系数的音频数字水印盲检新算法。
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