Motion- coherent video watermarking

Abstract

One of the challenging security issues in video watermarking is the inter-frame collusion attacks. These attacks exploit the inherent redundancy in the video frames or in the watermarks to produce an unwatermarked copy of the video. The frame temporal filtering(FTF) is the basic inter-frame collusion attack in which temporal low-pass filtering is applied to the watermarked frames to remove temporally uncorrelated watermarks.