Novel approach to collusion-resistant video watermarking
Karen Su, Deepa Kundur, Dimitrios Hatzinakos · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2002
This work considers the problem of frame collusion in video watermarking, one that is particularly relevant for this media due to the large collection of frames whose temporal inter-relationships may be exploited to facilitate estimation of the mark. Two new components are introduced: A mathematical framework for the statistical analysis of linear collusion and development of potential counterattacks; and a novel video watermarking approach employing the proposed strategies for robustness to collusion as well as other frame-as-image distortions. Experimental results demonstrating the performance of the proposed techniques against two types of collusion attacks are presented.