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基于内容特征的视频半脆弱水印方案 被引量：3

A SEMI-FRAGILE VIDEO WATERMARKING SCHEME BASED ON CONTENT FEATURES
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摘要 本文提出一种基于内容的MPEG Ⅰ /Ⅱ格式视频特征编码算法 ,其基本思想是采用离散余弦变换 (DCT)变换域中不同 8× 8块之间DCT能量关系来构造特征码。在此基础上给出了视频半脆弱水印方案 ,将内容特征码生成方法和水印算法有机地结合在一起。特征码具有“半脆弱”特性 ,即它对于可接受的“内容保持”修改具有鲁棒性 ,而对常见的“内容篡改”性修改具有敏感性。另外由于DCT系数块能量的主要部分集中在低频部分 ,这使得可以用低频部分来生成特征码 ,用高频部分来嵌入水印。 A feature coding scheme based on the content of MPEG-Ⅰ/Ⅱ video was proposed. The basic logic of the scheme is to use partial energy relation between groups of 8×8 DCT block to produce related feature code. A semi-fragile video watermarking scheme combines correctly the content based feature coding with the watermarking scheme. The feature code has the semi-fragile' property, meaning that it is robust to the acceptable ‘content preserving' modifications but sensitive to the ‘content changing' tampering. The lower DCT region is used to form the feature codes while the higher one is used to embed watermarks. Experimental results on video objects demonstrate the effectiveness of the scheme.
作者 雷红雨 戴跃伟 王执铨 王津申
机构地区 南京理工大学自动化系
出处 《兵工学报》 EI CAS CSCD 北大核心 2004年第5期613-618,共6页 Acta Armamentarii
基金 国家自然科学基金资助项目 ( 60 3 740 66) 江苏省自然科学基金资助项目 (BK2 0 0 2 10 1)
关键词 通信技术 内容认证 特征编码 视频水印 半脆弱 communicotion technique, content authentication, feature coding, video watermarking, semi-fragile
分类号 TN919.81 [电子电信—通信与信息系统]
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参考文献12

  • 1Fridrich J. Security of fragile authentication watermarks with localization. In: Delp E J, Wong P W. Proc SPIE Photonic West, Vol. 4675, Electronic Imaging 2002. Security and Watermarking of Multimedia Contents IV. San Jose, California, January, 2002. 691
  • 2Lin C Y, Chang S F. Semi-fragile watermarking for authenticating JPEG visual content.In: Delp E J, Wong P W. Proc. of SPIE Photonic West, Vol.4675, Electronic Imaging 2002, SPIE Security and Watermarking of Multimedia Contents II, EI'00.San Jose, CA, 2000
  • 3Celik M U, Sharma G, Tekalp A M, Saber E. Video authentication with self-recovery.In: Delp E J, Wong P W. Proc of SPIE, Security and Watermarking of Multimedia Contenets Ⅳ. 2002. 531-541
  • 4Lin C y, Chang S F. Issues and solutions for authenticating MPEG video. In Proc of SPIE Security and Watermarking of Multimedia Contents. San Jose, CA, 1999,3657.54-65
  • 5Kuato Maeno, Sun Q B, Chang S F, Masayuki Suto. New semi-fragile image authentication watermarking techniques using random bias and non-uniform quantization. In: Delp EJ, Wong PW. Proc of SPIE, Security and Watermarking of Multimedia Contents Ⅳ 2002,Vol.
  • 6Iwan Setyawan, Lagendijk R L. Low bit-rate video watermarking using temporally extended differential energy watermarking (DEW) algorithm. Proceedings of the SPIE. Security and Watermarking of Multimedia Contents Ⅲ. San Jose, 2001,Vol. 4314.73～84
  • 7Dittmann J, Mukherjee A, Steinebach M. Media-independent watermarking classification and the need for combining digital video and audio watermarking for media authentication. In: Proc of the International Conference on Information Technology: Coding and C
  • 8Mobasseri B G, Evans A T. Content-dependent video authentication by self-watermarking in color space. In: Delp E J, Wong P W. Proc of the SPIE. SPIE Security and Watermarking of Multimedia Contents Ⅲ, San Jose, 2001,Vol.4314.35～44
  • 9Coltue D, Bolon P, Chassery J M. Fragile and robust watermarking by histogram specification. In: Delp E J, Wong P W. Proc of SPIE Photonic West, Vol. 4675, Electronic Imaging 2002, Security and Watermarking of Multimedia ContentsⅣ, San Jose, California,
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同被引文献31

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兵工学报
2004年 第5期

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