[1]崔得龙,弓云峰,余桂兰.基于范重心的自适应量化音频盲水印算法[J].南京理工大学学报(自然科学版),2015,39(01):50-55.
 Cui Delong,Gong Yunfeng,Yu Guilan.Normed centre of gravity based blind adaptively quantized audio watermarking algorithm[J].Journal of Nanjing University of Science and Technology,2015,39(01):50-55.
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基于范重心的自适应量化音频盲水印算法
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
39卷
期数:
2015年01期
页码:
50-55
栏目:
出版日期:
2015-02-28

文章信息/Info

Title:
Normed centre of gravity based blind adaptively quantized audio watermarking algorithm
作者:
崔得龙12弓云峰1余桂兰1
1.广东石油化工学院 计算机与电子信息学院,广东 茂名 525000; 2.广东省石化装备故障诊断重点实验室,广东 茂名 525000
Author(s):
Cui Delong12Gong Yunfeng1Yu Guilan1
1.College of Computer and Electronic Information,Guangdong University of Petrochemical Technology, Maoming 525000,China; 2.Guangdong Provincial Key Laboratory of Fault Diagnosis of Petrochemical Equipment,Maoming 525000,China
关键词:
音频水印 鲁棒水印 范重心 离散余弦变换 自适应水印 盲水印 原始音频信号
Keywords:
audio watermarking robustness watermarking normed centre of gravity discrete cosine transform adaptive watermarking blind watermarking original audio signals
分类号:
TP309.7
摘要:
为了实现数字音频版权保护,利用音频信号低阶统计量的稳定性和离散余弦变换的去相关性,设计了一种基于范重心的自适应量化音频盲水印算法。原始音频信号按固定长度分帧,计算分帧音频范重心坐标并确定水印嵌入候选区域,水印信息自适应量化嵌入选中的离散余弦变换中低频系数。实验结果证明:该音频水印算法具有鲁棒性和有效性,同时密钥的使用保证了算法的安全性。
Abstract:
In view of the low-level steady statistics of audio signal and uncorrelated property of discrete cosine transform(DCT),an adaptively quantized audio blind watermarking algorithm based on normed centre of gravity(NCG)is proposed here to achieve the copyright protection of digital audio.The original audio signal is framed by equalized length.The coordinates of NCGs are detected from the framed audio,and the watermark is embedded into the region which includes the NCGs.The adaptively quantized watermarking information is embedded in the low frequent coefficients of DCT domain.Experimental results show that the scheme has robustness and effectiveness and the algorithm security is guaranteed by using secret keys.

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备注/Memo

备注/Memo:
收稿日期:2014-05-16 修回日期:2014-10-28
基金项目:国家自然科学基金(61473331); 广东省育苗工程项目(2013LYM_0057); 茂名市重点科技计划(913316); 广东省高等学校高层次人才项目(粤财教[2013]246号152); 广东省高等学校学科与专业建设专项资金科研类项目(2013KJCX0133)
作者简介:崔得龙(1978-),男,副教授,主要研究方向:信息安全,智能信息处理,E-mail:delongcui@163.com。
引文格式:崔得龙,弓云峰,余桂兰.基于范重心的自适应量化音频盲水印算法[J].南京理工大学学报,2015,39(1):50-55.
投稿网址:http://zrxuebao.njust.edu.cn
更新日期/Last Update: 2015-02-28