| 在压缩语音编码中集成信息隐藏方法研究 |
| |
| 引用本文： | 杨婉霞,余晖,胡萍.在压缩语音编码中集成信息隐藏方法研究[J].电子学报,2014,42(7):1305-1310. |
| |
| 作者姓名： | 杨婉霞 余晖 胡萍 |
| |
| 作者单位： | 1. 甘肃农业大学工学院, 甘肃兰州 730070;
2. 清华大学电子工程系, 北京 100084;
3. 清华大学网络科学与网络空间研究院, 北京 100084 |
| |
| 基金项目： | 国家自然科学基金(No ．61271392)；清华大学自主科研基金“跨媒体分布式垂直搜索及舆情分析的关技术” |
| |
| 摘 要： | 论文针对低速率语音编码过程的特点，提出了一种基于动态码本生成的信息隐藏方法，设计了相应的嵌入和提取算法.该方法解决了现有的基于静态码本分区的信息隐藏方法无法对抗码字统计分析检测的问题.实验表明该隐藏算法在13.3Kbps的载体速率下能获得450bps隐藏容量，而且载密信息的语音质量PESQ值下降不到6%.
|
| 关 键 词： | 信息隐藏 语音编码 动态码本 隐藏算法 隐藏容量 隐蔽性 |
| 收稿时间： | 2013-01-25 |
Research on Steganographic Method Integrated in the Compressed Speech Codec |
| |
| YANG Wan-xia,YU Hui,HU Ping.Research on Steganographic Method Integrated in the Compressed Speech Codec[J].Acta Electronica Sinica,2014,42(7):1305-1310. |
| |
| Authors: | YANG Wan-xia YU Hui HU Ping |
| |
| Affiliation: | 1. College of Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China;
2. Department of Electronic Engineering, Tsinghua University, Beijing 100084, China;
3. Institute for Science and Network Space Sciences, Beijing 100084, China |
| |
| Abstract: | This paper proposes a kind of information hiding method which is based on dynamic codebook generating technique,together with the corresponding inserting method and extracting algorithm.This method greatly solves the problem of deficiency in anti-testing of code analysis,which is faced by the information hiding that is based on static codebook partition techniques.The experimental result shows that the proposed algorithm can get 450 bps steganographic capacities within 13.3 Kbps carrier rate,while the loss of PESQ value of speech with steganographic information is less than 6%. |
| |
| Keywords: | steganography speech coding dynamic codebook steganographic capacity imperceptibility |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《电子学报》浏览原始摘要信息 |
|
点击此处可从《电子学报》下载全文 |
