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基于小波變換的語音信息隱藏新方法

吳秋玲 吳蒙

吳秋玲, 吳蒙. 基于小波變換的語音信息隱藏新方法[J]. 電子與信息學(xué)報, 2016, 38(4): 834-840. doi: 10.11999/JEIT150856
引用本文: 吳秋玲, 吳蒙. 基于小波變換的語音信息隱藏新方法[J]. 電子與信息學(xué)報, 2016, 38(4): 834-840. doi: 10.11999/JEIT150856
WU Qiuling, WU Meng. Novel Audio Information Hiding Algorithm Based on Wavelet Transform[J]. Journal of Electronics & Information Technology, 2016, 38(4): 834-840. doi: 10.11999/JEIT150856
Citation: WU Qiuling, WU Meng. Novel Audio Information Hiding Algorithm Based on Wavelet Transform[J]. Journal of Electronics & Information Technology, 2016, 38(4): 834-840. doi: 10.11999/JEIT150856

基于小波變換的語音信息隱藏新方法

doi: 10.11999/JEIT150856
基金項目: 

江蘇省普通高校研究生科研創(chuàng)新計劃項目(KYLX_ 0815),江蘇省高校自然科學(xué)研究重點資助項目(10KJA510035)

Novel Audio Information Hiding Algorithm Based on Wavelet Transform

Funds: 

Jiangsu Province Postgraduate Scientific Research and Innovation Project (KYLX_0815), Jiangsu Province University Science Research Foundation (10KJA510035)

  • 摘要: 針對音頻載體在隱藏機密信息時,存在隱藏容量小、隱蔽性不高和魯棒性較差等不足,該文提出一種基于小波變換的音頻信息隱藏新算法。該算法利用人耳聽覺系統(tǒng)對語音信號的中高頻信息微小變化不敏感的特性,調(diào)節(jié)語音段小波變換的中高頻系數(shù),進(jìn)而改變每級小波變換高頻系數(shù)前后兩部分的能量狀態(tài)來隱藏二進(jìn)制機密信息。首先測試隱藏深度、隱藏頻段和載體語音分段長度3個參數(shù)對載體語音質(zhì)量和機密信息誤碼率的影響,選擇算法所需的最佳參數(shù),然后測試算法的可行性和各項評價指標(biāo),最后對算法進(jìn)行常見的5種攻擊測試。測試結(jié)果表明該算法能夠?qū)崿F(xiàn)機密信息的盲提取;具有良好的隱蔽性和魯棒性,能夠抵御加噪、低通濾波、重采樣、重量化和回聲干擾等多種攻擊;具有較大的隱藏容量,且語音分段長度越短,隱藏容量越大。
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出版歷程
  • 收稿日期:  2015-07-16
  • 修回日期:  2015-12-11
  • 刊出日期:  2016-04-19

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