A fast SVD based video watermarking algorithm compatible with MPEG2 Standard |
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Authors: | Di Wu Wenhai Kong Bian Yang Xiamu Niu |
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Affiliation: | (1) School of Computer Science, Harbin Institute of Technology, Harbin, 150080, China |
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Abstract: | This paper presents a real time video watermarking algorithm based on the singular value decomposition (SVD). The embedding
procedure combines the DCT and SVD. The SVD is applied on the low frequency AC coefficients of block DCT of the frame. Then
the relation of neighbor coefficients of those middle frequency bands in the singular values is modified. The hidden information
can be extracted without the original video or the order of the original singular values, i.e., this is a blind watermarking
algorithm. Experiments show that the algorithm is very robust against MPEG-2 compression, median filtering, small shift, and
rotation, etc. |
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Keywords: | Video watermarking SVD DCT |
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