Robust audio watermarking using improved TS echo hiding
Robust audio watermarking using improved TS echo hiding
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DOI：
10.1016/j.dsp.2009.04.003
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发表时间：
2009-09-01
影响因子：
2.9
通讯作者：
Siahpoush, Shadi
中科院分区：
文献类型：
--
作者：
Erfani, Yousof;Siahpoush, Shadi
提出了一种基于内容的改进时间扩展回声隐藏方法。系统解码器依赖于基于相关量来区分水印比特，并且回声核也将水印比特嵌入到整个信号中。所提出的系统是基于倒谱内容的，其中在解码器处的错误的原始信号倒谱部分被移除，并且因此解码器检测率的性能被显著地改善。实验结果表明，通过计算错误检测率，与传统的回声隐藏方法相比，该系统对常见的信号处理攻击具有良好的鲁棒性。通过均值意见测试（MOS）和信噪比值比较，水印的不可闻性也得到了较好的结果。(C)2009 Elsevier Inc. All rights reserved.
A novel and content based improved time spread echo hiding method (ITS) is presented. The system decoder relies upon distinguishing a watermarked bit based on a correlation amount quantity and also the echo kernel embeds the watermark bit into the whole signal. The presented system is cepstral content based in which the original signal cepstral portion of error at the decoder is removed and thus the performance of the decoder detection rate is improved considerably. Experimental results show the good results for the system robustness against the common signal processing attacks through calculating error detection rates in comparison with conventional echo hiding methods. Also good results were obtained for watermark inaudibility through mean opinion test (MOS) test and SNR value comparisons. (C) 2009 Elsevier Inc. All rights reserved.