  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.
