| 基于DCT和DWT域的音频信息隐藏算法 |
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| 引用本文： | 王先春,郭杰荣,胡惟文,蔡剑华. 基于DCT和DWT域的音频信息隐藏算法[J]. 计算机工程与设计, 2008, 29(16) |
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| 作者姓名： | 王先春 郭杰荣 胡惟文 蔡剑华 |
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| 作者单位： | 1. 湖南文理学院物理与电子科学系,湖南,常德,415000
2. 湖南文理学院物理与电子科学系,湖南,常德,415000;湖南大学电气与信息工程学院,湖南,长沙,410082 |
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| 基金项目： | 湖南省教育厅资助科研基金，湖南文理学院校科研和教改项目 |
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| 摘 要： | 提出了一种基于DCT域和DWT域的音频信息隐藏算法.该算法充分利用了离散小波变换的多分辨率特性和离散余弦变换的能量压缩能力,通过量化的方法把保密语音信息隐藏到原始的载体音频中,在保密语音的提取过程中不需要原始音频信号的参与.仿真试验表明,该算法的鲁棒性和不可感知性比单独采用DCT变换或DWT变换更好.
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| 关 键 词： | 音频 信息隐藏 量化 离散余弦变换 离散小波变换 |
Audio information hiding algorithm based on DCT and DWT |
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| WANG Xian-chun,GUO Jie-rong,HU Wei-wen,CAI Jian-hua. Audio information hiding algorithm based on DCT and DWT[J]. Computer Engineering and Design, 2008, 29(16) |
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| Authors: | WANG Xian-chun GUO Jie-rong HU Wei-wen CAI Jian-hua |
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| Affiliation: | WANG Xian-chun1,GUO Jie-rong1,2,HU Wei-wen1,CAI Jian-hua1(1.Department of Physics , Electronics,Hunan University of Arts , Science,Changde 415000,China,2.College of Electrical , Information Engineering,Hunan University,Changsha 410082,China) |
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| Abstract: | An algorithm based on DCT and DWT is presented to embed secret audio signal in carrier audio signal by quantification process.It makes full use of the abilities of multi-resolution of DWT and the energy compression of DCT.The algorithm can be extracted without the original audio signal.Experimental results demonstrate the algorithm is more robust and imperceptible than the single approach by DCT or DWT. |
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| Keywords: | audio information hiding quantification DCT DWT |
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