Robust watermarking for video based on Quasi-3D DWT/DCT

A robust video watermarking scheme based on quasi-3D DWT/DCT is proposed. The scheme uses 2-D DWT to depict intra-frame information and uses 1-D DCT to depict temporal axis information. During the watermark embedding process, watermarking is embedded into HH3 subband in wavelet domain and DC coefficients in discrete cosine transform (DCT) domain. In the extraction procedure, the scheme utilizes synchronization frames´ Geometric Moment to correct geometric distortion. The simulation results demonstrate that the scheme is robust enough and has low computation overhead.