| 基于内容分析的音频水印算法 |
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| 引用本文： | 孙新德,路玲,荆立夏. 基于内容分析的音频水印算法[J]. 信阳师范学院学报(自然科学版), 2007, 20(2): 245-247 |
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| 作者姓名： | 孙新德 路玲 荆立夏 |
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| 作者单位： | 郑州航空工业管理学院,计算机科学与应用系,河南,郑州,450015 |
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| 基金项目： | 河南省教育厅自然科学基金 |
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| 摘 要： | 提出了一种基于音频内容分析和离散余弦变换的水印嵌入算法.水印嵌入算法首先对音频信号时域特征进行分析,根据设定的门限确定出若干个相对稳定的特征区域,然后对特征区域数据进行离散余弦变换,最后把水印信息数据嵌入到合适的变换系数中.实验证明该算法具有较强的鲁棒性,可以抵抗普通的信号处理、MP3压缩、时间尺度修改和随机裁剪等攻击.
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| 关 键 词： | 信号分析 数字水印 鲁棒性 随机裁剪 |
| 文章编号： | 1003-0972（2007）02-0245-03 |
| 收稿时间： | 2006-11-06 |
| 修稿时间： | 2007-02-06 |
An Audio Watermarking Algorithm Based on Audio Content Analyzing |
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| SUN Xin-de,LU Ling,JING Li-xia. An Audio Watermarking Algorithm Based on Audio Content Analyzing[J]. Journal of Xinyang Teachers College(Natural Science Edition), 2007, 20(2): 245-247 |
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| Authors: | SUN Xin-de LU Ling JING Li-xia |
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| Abstract: | A novel audio watermarking algorithm,based on audio content analyzing and DCT transform,was proposed.At first,the character of audio was analyzed in the time domain,and some steady high-energy local regions was selected,and DCT was performed on the selected audio signal segments,finally the watermark was embedded into the amplitude of the DCT coefficient.The experimental results show the proposed algorithm with high robustness against common audio signal processing,MP3 compression,time-scale modification and random cropping. |
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| Keywords: | signal analysis digital watermarking robustness random cropping |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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