| 盲编码与有信编码结合的音频扩谱水印技术 |
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| 引用本文： | 陈金儿,王让定.盲编码与有信编码结合的音频扩谱水印技术[J].计算机工程与应用,2006,42(3):36-39. |
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| 作者姓名： | 陈金儿 王让定 |
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| 作者单位： | 宁波大学纵横智能软件研究所,浙江,宁波,315211 |
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| 基金项目： | 浙江省自然科学基金;浙江省宁波市博士基金 |
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| 摘 要： | 水印系统通常被看作为一种通信模型,水印相当于被传送的信息,宿主信号为信道第一噪声源,攻击为信道第二噪声源。有信编码可以抵制第一噪声源对水印的干扰,而盲编码可以抵制第二噪声源的干扰。文章尝试性地提出了盲编码与有信编码结合的自适应的音频扩谱水印算法,用有信编码来抵制第一噪声源对水印的干扰,用较高码率的盲编码抵制第二噪声源的干扰。通过大量的实验证明,与其它的水印编码方案相比3,4],该文的方法在多种攻击测试中具有很强的鲁棒性,其结果接近脏纸理论7]的理想性能。
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| 关 键 词： | 音频水印 盲编码 有信编码 扩谱水印 |
| 文章编号： | 1002-8331-（2006）03-0036-04 |
| 收稿时间： | 2005-06 |
| 修稿时间： | 2005-06 |
The Spread Spectrum Audio Watermarking Algorithm Combined Blind Coding with Informed Coding |
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| Chen Jiner,Wang Rangding.The Spread Spectrum Audio Watermarking Algorithm Combined Blind Coding with Informed Coding[J].Computer Engineering and Applications,2006,42(3):36-39. |
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| Authors: | Chen Jiner Wang Rangding |
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| Affiliation: | CKC Software Lab, Ningbo University, Ningbo, Zhejiang 315211 |
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| Abstract: | Watermarking used to be modeled as a communication system,where the watermark is treated as the transmitted signal,the "cover work" as the first noise source,and the "attacks" as the second noise source.Informed coding can resist the first noise source as well as the blind coding can resist the second noise source.The proposed spread-spectrum watermarking algorithm is adaptive to the fluctuation of audio amplitude,applies the informed coding and blind coding together.The robustness is proved by experiment. |
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| Keywords: | audio watermarking blind coding informed coding spread-spectrum watermarking |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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