New intra-video collusion attack using mosaicing
ICME '03 Proceedings of the 2003 International Conference on Multimedia and Expo - Volume 1
Statistical invisibility for collusion-resistant digital video watermarking
IEEE Transactions on Multimedia
Multiresolution scene-based video watermarking using perceptual models
IEEE Journal on Selected Areas in Communications
IEEE Transactions on Image Processing
A Bootstrap Attack on Digital Watermarks in the Frequency Domain
ICICS '08 Proceedings of the 10th International Conference on Information and Communications Security
Detection of motion-incoherent components in video streams
IEEE Transactions on Information Forensics and Security
Shape analysis for power signal cryptanalysis on secure components
Journal of Systems and Software
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One of the challenging issues in video watermarking is its robustness to inter-frame collusion attacks. The Inter-frame collusion attacks exploit the inherent redundancy in the video frames or in the watermark to produce an unwatermarked copy of the video. A basic inter-frame collusion attack is the frame temporal filtering(FTF) attack, where temporal low-pass filtering is applied to the watermarked frames in order to remove temporally uncorrelated watermarks. If the video frames contain moving objects or camera motion, temporal low-pass filtering introduces visually annoying ghosting artifacts in the attacked video. Thus the applicability of the FTF attack is limited only to static scenes. We propose an extended FTF attack which overcomes this limitation by exploiting the motion within the video frames. Experimental results presented in this paper confirm the effectiveness of the proposed attack over the FTF attack. A countermeasure to this extended FTF attack is also presented.