基于分集技术的抗线性共谋攻击的视频水印方案

Video watermarking scheme for resistance to linear collusion based on diversity technique

针对视频水印中存在的线性共谋攻击问题,通过分析线性共谋攻击的数学模型,基于通信分集技术建立了一个有效抵抗线性共谋攻击的视频水印设计框架,并根据该框架提出了一种新的能够有效抵抗线性共谋攻击的空域自适应视频水印方案。理论分析和实验结果表明,该方案不仅对剪切、帧去除、帧插入、帧重组以及不可察觉的几何变形具有很好的鲁棒性,而且能够有效地抵抗线性共谋攻击,同时对H.264压缩也具有较好的鲁棒性。

This paper gave the mathematical model of linear collusion attack. And according to the model, put forward the design framework of video watermarking for resistance to linear collusion based on the communication diversity technique. Moreover, it proposed an adaptive video watermarking scheme, which was in spatial domain, for effective resistance to linear collusion attack according to the proposed framework. Theory analysis and experiment show that watermark can not only be robust enough to cropping, frame removal, frame insertion, frame reorganization, imperceptible geometrical distortion and linear collusion, but also reduce the impact of H. 264 compression under some conditions.