| 基于倒谱变换的数字音频健壮盲水印算法 |
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| 引用本文： | 李跃强,孙星明,周支元.基于倒谱变换的数字音频健壮盲水印算法[J].计算机工程与应用,2005,41(35):52-55. |
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| 作者姓名： | 李跃强 孙星明 周支元 |
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| 作者单位： | 怀化医学高等专科学校,湖南怀化,418000;湖南大学计算机与通信学院,长沙,410082 |
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| 基金项目： | 国家自然科学基金（编号：60373062）;教育部科研重点项目（编号：03092）;湖南省教育厅科研基金（编号：05C020）资助.特别感谢：本文得到西安电子科技大学教授、博导陈怀琛老师以及东北大学教授、博导薛定字老师的指导,对二位老师的指导表示衷心感谢. |
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| 摘 要： | 提出一种基于倒谱变换的数字音频健壮盲水印算法。把音频信号划分为包含相同采样点的若干帧,对指定帧实施复倒谱变换,将复倒谱系数均值与阈值进行比较,结合水印序列为“0”或“1”,采取缩小、增加或不改变复倒谱系数均值的方法,在复倒谱系数中嵌入水印。实验证明,该算法具有较强的健壮性,较好的透明性,提取水印属盲水印提取,能经受添加噪声、重采样、低通滤波、重新量化、音频格式转换等常见信号处理及攻击。
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| 关 键 词： | 数字音频水印 复倒谱 健壮 盲水印 |
| 文章编号： | 1002-8331-（2005）35-0052-04 |
| 收稿时间： | 2005-08 |
| 修稿时间： | 2005-08 |
A Robust and Blind Digital Audio Watermarking Algorithm Based on Cepstrum Transform |
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| Li Yueqiang,Sun Xingming,Zhou Zhiyuan.A Robust and Blind Digital Audio Watermarking Algorithm Based on Cepstrum Transform[J].Computer Engineering and Applications,2005,41(35):52-55. |
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| Authors: | Li Yueqiang Sun Xingming Zhou Zhiyuan |
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| Affiliation: | 1.Huaihua Medical College, Huaihua, Hunan 418000; 2.School of Computer and Communication, Hunan University,Changsha 410082 |
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| Abstract: | This paper proposes a robust and blind digital audio watermarking algorithm based on cepstrum transform. The audio signal has been divided into several segments which including the same sample,the segment has been transformed with complex cepstrum,mean of complex cepstrum coefficient and threshold have been compared, according to watermark bit and adopting the way of reducing,increasing or not changing complex cepstrum coefficients, watermark has been embedded into the complex cepstrum coefficient.The experiment result shows that the algorithm is robust,transparent and blind against common signal processing manipulations and attacks,such as resampling,noise, low-pass filter,remodulation,conversion and so on. |
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| Keywords: | digital audio watermarking complex cepstrum robust blind |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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