In addition, dither modulation is used in quantization embedding, by which the tradeoff between transparency and robustness of watermarking can be easily adjusted.
同时,该算法的量化嵌入采用了抖动调制,从而可以较方便地调节水印的透明性和鲁棒性。
参考来源 - 基于数字水印的信息隐藏技术Uniformity quantization and dithered modulation are adopted in this arithmetic.
嵌入算法采用均匀量化以及抖动调制的思想。
参考来源 - 基于DCT域量化技术的数字图像水印算法的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
该算法以抖动调制为基础,以视频帧的运动特征和纹理特征作为边信息,自适应地确定抖动调制的量化步长。
In the algorithm, dither modulation is adopted, and the motion feature and texture feature are used as side information to determine the adaptive quantification step of every frame.
算法利用伪随机数产生经过模型中心的直线,选取以直线与模型交点为球心的球形邻域作为嵌入对象,通过抖动调制邻域内顶点的重心来嵌入水印信息。
Firstly, a group of lines through the model center depending on a pseudorandom number is generated. Then the intersection points of these lines and the model's surface are chosen as embedding objects.
仿真表明,自适应调制泄漏法在网络处于劣化模式和非劣化模式时都可以有效地抑制指针调整抖动。
Simulations show that adaptively modulated bit leaking method can reduce the jitter in pointer adjustment effectively in both the normal mode and the degraded mode of SDH network.
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