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基于运动矢量的抗几何攻击视频水印方案

DOI: 10.11834/jig.20070931

Keywords: 视频水印,运动矢量,几何攻击

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Abstract:

许多数字图像和视频水印方案都无法抵挡几何变换攻击,即使是轻微的旋转、缩放、平移也将会破坏水印的同步,这就使得水印难以检测出来。为解决此难题,提出了一种新颖的视频水印算法。该算法利用了运动矢量特征的相对关系不易随几何失真变换而改变的特性,使得水印具有内在的抗几何失真的鲁棒性。该算法中,水印嵌入和检测时,不仅可根据平均运动矢量的方向和幅度确定水印模板的位置和方向,而且水印检测不需要原始视频。实验表明,该水印算法对几何变换攻击具有较强的鲁棒性。

References

[1]  Lichtenauer J,Setyawan I,Kalker T,et al.Exhaustive geometrical search and the false positive watermark detection probability[ A ].In:Proceedings of SPIE Security and Watermarking of Multimedia Contents Ⅴ[C],Santa Clara,CA,USA,2003,5020:158~161.
[2]  Kutter M,Bhattacharjee S K,Ebrahimi T.Towards second generation watermarking schemes[ A ].In:Proceedings of 6th International Conference on Image Processing ICIP\'99[ C ],Kobe,Japan,1999,1:320~323.
[3]  Yao Z,Reginald R L.Video watermarking scheme resistant to geometric attacks[ A ].In:Proceedings of International Ionference for Image Processing[ C],Rochester,NY,USA,2002,2:145~148.
[4]  Niu Xia-mu,Schmucker M,Busch C.Video watermarking based on time-axis template[J].Acta Electronica Sinica,2004,32(8):1236~1238.[牛夏牧,Schmucker M,Busch C.基于时间轴上模板的动态图像数字水印处理技术[J].电子学报,2004,32(8):1236~1238.]
[5]  Ruanaidh J J K (O),Pereira S.A secure robust digital image watermark[ A ].In:Proceedings of SPIE Europto Conference on Electronic Imaging[ C],Zurich,Switzerland,1998,3409:150~163.
[6]  Fletcher P A,Larkin K G.Direct embedding and detection of RST invariant watermarks[ A ].In:Proceedings of 5th International Workshop on Information Hiding,(IH) 2002[ C ],Noordwijkerhout,The Netherlands,2003:129~144.
[7]  Haitsma J,Kalker T.A watermarking scheme for digital cinema[ A ].In:Proceedings of International Conference for Image Processing[C],Thessaloniki,2001,2:487~489.
[8]  Wessely U.Synchronization of video watermarks for oblivions detection after geometrical distortions[ A ].In:Virtual Goods 2004[ EB/OL].http://virtualgoods.tu-ilmenau.de/2004/wmsync-VG04.pdf.

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