基于奇异谱分析的音频信息隐藏算法
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摘要
针对现有的语音隐藏算法隐藏容量不高、鲁棒性较差、不能盲提取的问题,提出一种基于奇异谱分析的音频信息隐藏算法。运用奇异谱分析把原始音频载体分解成一系列的振动分量,通过修改特定振动分量的比例因子,实现秘密信息的嵌入。实验结果表明,所提算法具有良好的透明性、较大的隐藏容量,以及较强的鲁棒性,在提取水印信息时不需要原始音频载体,属于一种盲提取的信息隐藏算法。
Aiming at the problem that the existing speech hiding algorithms are non-blind and poor in terms of robustness and capacity,an audio information hiding algorithm based on singular spectrum analysis was proposed.Singular spectrum analysis was used to decompose the host audio signals into a series of oscillatory components.The secret information was embedded through modifying the scale factor of certain oscillatory components.Simulation results show that the proposed scheme is good in imperceptibility,capacity and robustness and it is a blind information hiding algorithm since the original audio carrier is not needed when extracting secret information.
Aiming at the problem that the existing speech hiding algorithms are non-blind and poor in terms of robustness and capacity,an audio information hiding algorithm based on singular spectrum analysis was proposed.Singular spectrum analysis was used to decompose the host audio signals into a series of oscillatory components.The secret information was embedded through modifying the scale factor of certain oscillatory components.Simulation results show that the proposed scheme is good in imperceptibility,capacity and robustness and it is a blind information hiding algorithm since the original audio carrier is not needed when extracting secret information.
引文
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[2]WANG Dongdong,WANG Fuming.Research and implementation of digital watermarking algorithm based on LSB[J].Shanxi Electronic Technology,2014(5):76-77(in Chinese).[王东东,王福明.基于LSB数字水印算法的研究与实现[J].山西电子技术,2014(5):76-77.]
[3]LAI Li,DING Jinsong.A digital watermarking algorithm based on discrete cosine transform[J].Journal of the Xi’an University of Post and Telecommunications,2013,18(5):172-175(in Chinese).[赖力,丁劲松.一种基于离散余弦变换的数字水印算法[J].西安邮电大学学报,2013,18(5):172-175.]
[4]LEI Ming,WANG Xinfang,LIU Qiao,et al.An improved algorithm for digital audio watermarking based on echo hiding(1)[J].Computer System Application,2013,22(7):81-84(in Chinese).[雷鸣,王新房,刘侨,等.一种基于回声隐藏的数字音频水印改进算法(1)[J].计算机系统应用,2013,22(7):81-84.]
[5]LING Lin.The voice information based on the echo hiding method conceals[J].Information Security and Communication Secrecy,2007(5):136-138(in Chinese).[凌霖.基于回声隐藏法的语音信息隐匿[J].信息安全与通信保密,2007(5):136-138.]
[6]Lie WN,Chang LC.Robust and high-quality time-domain audio watermarking based on low-frequency amplitude modification[J].IEEE Transactions on Multimedia,2006,8(1):46-59.
[7]ZHU Xianhua,LEI Min,YANG Yu,et al.An audio watermarking algorithm based on DCT and SVD[J].Computer Engineering,2012,38(19):111-113(in Chinese).[朱宪花,雷敏,杨榆,等.一种基于DCT和SVD的音频水印算法[J].计算机工程,2012,38(19):111-113.]
[8]Al-Haj A,Twal C,Mohammad A.Hybrid DWT-SVD audio watermarking[C]//International Conference on Digital Information Management.IEEE,2010:525-529.
[9]JIN Jing,ZHANG Tianqi,WAN Yilong,et al.Comparison of TETRA and G.729 speech coding algorithms[J].TV Technology,2013,37(15):168-172(in Chinese).[金静,张天骐,万义龙,等.TETRA与G.729语音编码算法的比较研究[J].电视技术,2013,37(15):168-172.]
[10]JIN Liyan,CHEN Li,FAN Taiting,et al.Speech denoising algorithm based on singular spectrum analysis and Wiener filtering[J].Journal of Computer Applications,2015,35(8):2336-2340(in Chinese).[靳立燕,陈莉,樊泰亭,等.基于奇异谱分析和维纳滤波的语音去噪算法[J].计算机应用,2015,35(8):2336-2340.]
[11]Vivekananda BK,Sengupta I,Das A.An adaptive audio watermarking based on the singular value decomposition in the wavelet domain[J].Digital Signal Processing,2010,20(6):1547-1558.
[12]Hassani H, Mahmoudvand R,Zokaei M.Separability and window length in singular spectrum analysis[J].Comptes Rendus Mathematique,2011,349(17-18):987-990.
[13]JIANG Yang.GSM network voice quality MOS promotion strategy research[D].Jilin:Jilin University,2014(in Chinese).[姜阳.GSM网络语音质量MOS提升策略研究[D].吉林:吉林大学,2014.]