【摘要】 针对多数音频数字水印嵌入过程中水印鲁棒性和不可感知性之间的矛盾,本文讨论了一种新的数字水印技术——零水印。提出基于变换域的音频零水印二次检测算法,根据检测对象所受攻击的不同分别在DWT和SDFT域对水印进行二次检测。仿真试验证明该方法不对原始音频信号进行修改,不改变原始信号的感知质量,能够实现盲检测,保证水印的不可察觉性,鲁棒性好。更多还原

【Abstract】 According to alleviating the conflict between fobustness and imperceptibility during embedding ,a novel watermarking-audio digital zero-watermarking is provided.Zero-watermarking utilitizes the feathure of the original works to construct a watermark,but does not modify the data .A digital audio zero-watermarking second-detecting algorithm based on DWT and SDFT is provided to improve the robustness of the watermarking.Experments show that the capability of this method to resist all kinds of common attacks is excel- lent.It has good robustness and the watermarking can be extracted without the original data.更多还原