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基于熵編碼的立體視頻加密與信息隱藏算法

高巍 蔣剛毅 郁梅 駱挺

高巍, 蔣剛毅, 郁梅, 駱挺. 基于熵編碼的立體視頻加密與信息隱藏算法[J]. 電子與信息學(xué)報(bào), 2020, 42(9): 2158-2165. doi: 10.11999/JEIT190345
引用本文: 高巍, 蔣剛毅, 郁梅, 駱挺. 基于熵編碼的立體視頻加密與信息隱藏算法[J]. 電子與信息學(xué)報(bào), 2020, 42(9): 2158-2165. doi: 10.11999/JEIT190345
Wei GAO, Gangyi JIANG, Mei YU, Ting LUO. A Steganography Algorithm in Encrypted Stereoscopic Video Based on Entropy Coding[J]. Journal of Electronics & Information Technology, 2020, 42(9): 2158-2165. doi: 10.11999/JEIT190345
Citation: Wei GAO, Gangyi JIANG, Mei YU, Ting LUO. A Steganography Algorithm in Encrypted Stereoscopic Video Based on Entropy Coding[J]. Journal of Electronics & Information Technology, 2020, 42(9): 2158-2165. doi: 10.11999/JEIT190345

基于熵編碼的立體視頻加密與信息隱藏算法

doi: 10.11999/JEIT190345
基金項(xiàng)目: 國家自然科學(xué)基金(61671258, 61871247, 61931022, 61971247)
詳細(xì)信息
    作者簡(jiǎn)介:

    高?。耗?,1969年生,博士生,講師,研究方向?yàn)?D視頻信息隱藏

    蔣剛毅:男,1964年生,博士,教授,博士生導(dǎo)師,研究方向?yàn)槎嗝襟w信號(hào)處理與通信、3D視頻系統(tǒng)編碼與傳輸、圖像與視頻質(zhì)量評(píng)價(jià)、信息隱藏

    郁梅:女,1968年生,博士,教授,博士生導(dǎo)師,研究方向?yàn)槎嗝襟w信號(hào)處理與通信研究

    駱挺:男,1980年生,博士,副教授,研究方向?yàn)槎嗝襟w信息隱藏

    通訊作者:

    蔣剛毅 jianggangyi@126.com

  • 中圖分類號(hào): TN911.73; TP391

A Steganography Algorithm in Encrypted Stereoscopic Video Based on Entropy Coding

Funds: The National Natural Science Foundation of China (61671258, 61871247, 61931022, 61971247)
  • 摘要: 針對(duì)立體視頻的安全性,該文提出一種基于熵編碼的立體視頻加密與信息隱藏算法。首先,結(jié)合立體視頻編碼結(jié)構(gòu),分析誤差漂移的物理機(jī)制,并根據(jù)立體視覺掩蔽效應(yīng),確定左右視點(diǎn)的加密幀和隱秘信息待嵌入幀。其次,在基于上下文自適應(yīng)二進(jìn)制算術(shù)編碼(CABAC)的熵編碼中,通過等長碼字替換技術(shù),實(shí)現(xiàn)立體視頻的加密和信息隱藏。實(shí)驗(yàn)結(jié)果表明,視頻碼流經(jīng)加密與信息隱藏之后格式兼容、比特率不變,視頻感知質(zhì)量無明顯下降,在計(jì)算復(fù)雜度和碼率增加率上有顯著優(yōu)勢(shì)。
  • 圖  1  基于CABAC熵編碼的立體視頻加密與信息隱藏算法框圖

    圖  2  立體視頻加密域或解密域中的信息提取框圖

    圖  3  立體視頻編碼中的HBP預(yù)測(cè)結(jié)構(gòu)和誤差漂移級(jí)數(shù)

    圖  4  不同子宏塊的數(shù)據(jù)嵌入對(duì)B幀視頻質(zhì)量影響(Akko&Kayo)

    圖  5  測(cè)試序列快照 (左視點(diǎn)第1幀)

    圖  6  加密的視頻幀快照(左視點(diǎn)第10幀)

    圖  7  各個(gè)測(cè)試序列加密前后PSNR變化

    圖  8  解密后含隱秘信息的立體視頻與原始立體視頻編碼PSNR對(duì)比(Akko&Kayo)

    圖  9  各立體測(cè)試序列可嵌入數(shù)據(jù)容量

    圖  10  本文方法與文獻(xiàn)[4]和文獻(xiàn)[9]的ΔPSNR比較

    圖  11  最大可嵌入數(shù)據(jù)容量對(duì)比(bit GOP)

    圖  12  各算法的比特率變化率BIR (×10?5)

    表  1  CABAC下MVD幅值的UEG3二值化串

    abs(MVD)Bin-string
    TU prefixEG3 suffix
    00
    $ \vdots $$ \vdots $
    8111111110
    91111111110000
    101111111110001
    $ \vdots $$ \vdots $$ \vdots $
    17111111111100000
    18111111111100001
    $ \vdots $$ \vdots $$ \vdots $
    3311111111111000000
    3411111111111000001
    $ \vdots $$ \vdots $$ \vdots $
    下載: 導(dǎo)出CSV

    表  2  MVD幅值的二進(jìn)制串對(duì)

    C0C1
    abs(MVD)EG3abs(MVD)EG3
    33110 0000034110 00001
    35110 0001036110 00011
    $ \vdots $$ \vdots $$ \vdots $$ \vdots $
    下載: 導(dǎo)出CSV

    表  3  各立體測(cè)試序列數(shù)據(jù)嵌入前后視頻質(zhì)量評(píng)價(jià)指標(biāo)

    序列視點(diǎn)嵌入容量(bit)PSNRSSIMVQM
    標(biāo)準(zhǔn)編碼本文算法標(biāo)準(zhǔn)編碼本文算法標(biāo)準(zhǔn)編碼本文算法
    Akko&Kayo0155544.9844.900.98790.98790.51790.5357
    1324145.1344.670.98840.98810.52620.6221
    Ballroom0353442.3342.270.98050.98050.75530.7862
    1577742.0741.860.97930.97900.75670.8594
    Exit062042.3642.360.96730.96730.81380.8146
    1213642.2642.200.96630.96610.82640.8660
    Vassar049241.8941.880.96570.96570.78020.7865
    1108741.8241.770.96440.96430.79100.8273
    Flamenco0130044.8744.860.98710.98710.58920.5953
    1490545.4145.100.98820.98810.54580.5937
    下載: 導(dǎo)出CSV

    表  4  本文方法與文獻(xiàn)[4]和文獻(xiàn)[9]的性能對(duì)比

    序列PSNR(dB)數(shù)據(jù)可嵌入容量(bit GOP)BIR(×10–5)
    文獻(xiàn)[4]文獻(xiàn)[9]本文文獻(xiàn)[4]文獻(xiàn)[9]本文文獻(xiàn)[4]文獻(xiàn)[9]本文
    Akko&Kayo44.90345.01244.788122134140013.46856.1460.000
    Ballroom42.10542.11642.067136170077612.83171.3290.000
    Exit42.28242.24342.280114155623013.69459.0040.000
    Vassar41.83241.78841.82696180213218.24459.7860.000
    Flamenco45.01745.02444.982154121151717.34451.9690.000
    Crowd42.88542.98342.743133169342517.68259.6820.000
    下載: 導(dǎo)出CSV
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出版歷程
  • 收稿日期:  2019-05-16
  • 修回日期:  2020-03-20
  • 網(wǎng)絡(luò)出版日期:  2020-07-01
  • 刊出日期:  2020-09-27

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