Videos can be easily tampered, copied and redistributed by attackers for illegal and monetary usage. Such behaviors severely jeopardize the interest of content owners. Despite huge efforts made in digital video watermarking for copyright protection, typical distortions in video transmission including signal attacks, geometric attacks and temporal synchronization attacks can still easily erase the embedded signal. Among them, temporal synchronization attacks which include frame dropping, frame insertion and frame rate conversion is one of the most prevalent attacks. To address this issue, we present a new video watermarking based on joint Dual-Tree Cosine Wavelet Transformation (DTCWT) and Singular Value Decomposition (SVD), which is resistant to frame rate conversion. We first extract a set of candidate coefficient by applying SVD decomposition after DTCWT transform. Then, we simulate the watermark embedding by adjusting the shape of candidate coefficient. Finally, we perform group-level watermarking that includes moderate temporal redundancy to resist temporal desynchronization attacks. Extensive experimental results show that the proposed scheme is more resilient to temporal desynchronization attacks and performs better than the existing blind video watermarking schemes.
翻译：攻击者可以轻易地篡改、复制和重新分配视频,用于非法和货币使用。这种行为严重损害了内容所有者的利益。尽管在版权保护数字视频水标记方面做出了巨大努力,但典型的视频传输扭曲,包括信号攻击、几何攻击和时间同步攻击,仍然可以很容易地抹除嵌入的信号。其中,包括框架落落落、框架插入和框架速率转换在内的时间同步攻击是最普遍的攻击之一。为了解决这个问题,我们根据双轨Cosine Wavelet(DTCWT)和Singulal valu Decomposition(SVD)联合制作了新的视频水标记,后者对标定率转换具有阻力。我们首先通过在DTCWT变换后应用SVD脱钩来提取一套候选系数。然后,我们模拟水标记嵌入时,调整候选系数的形状。最后,我们进行集体一级水标记,其中包括中度的时冗,以抵抗时间脱同步攻击。广泛的实验结果显示,拟议的计划更耐时间断裂攻击,并且比现有的视像像标计划更好。
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