Digital Video Watermarking Techniques for Secure Multimedia Creation and Delivery

We have seen an explosion of data exchange in the Internet and the extensive use of digital media. Consequently, digital data owners can quickly and massively transfer multimedia documents across the Internet. This leads to wide interest in multimedia security and multimedia copyright protection. We propose a digital video watermarking algorithm, in which a novel DWTbased blind digital video watermarking scheme with scrambled watermarks and error correcting codes is presented. Our scheme first embeds different parts of a single watermark into different scenes of a video under the wavelet domain. To increase the robustness of the scheme, the watermark is refined by the error correcting codes, while the correcting code is embedded as a watermark in the audio channel. Our video watermarking algorithm is robust against the attacks of frame dropping, averaging and statistical analysis, which were not solved effectively in the past. Furthermore, it allows blind retrieval of embedded watermark which does not need the original video and the watermark is perceptually invisible. The effectiveness of this scheme is verified through a number of experiments, in which a number of standard image processing attacks is conducted, and the robustness of our approach is demonstrated using the criteria of the latest StirMark test.