Abstract
To solve the problem of gateway copyright protection,a new fast approach was put forward for embedding and extracting gateway watermark in digital video. In intra frame watermarking,the method elegantly detected and selected affine covariant regions in nearly linear complexity. Then,the overlapped affine covariant regions were eliminated based on minimal spanning tree. Last,watermark bits were embedded in Discrete Wavelet Transform(DWT) coefficients in linear time. In inter frame watermarking,the method effectively utilized the continuity inside video scenes to predict the affine covariant regions in no-boundary frames based on boundary frame. The attacking experimental results show that under geometric attacks and format conversion attacks,the accuracies of watermark detection are above 93% and 83% respectively. The simulation results show that in local network with 400 online hosts,the proposed method can block gateway watermark video transmission within 10frames.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
