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Digital Cinema Watermarking for Estimating the Position of the Pirate

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3 Author(s)
Min-Jeong Lee ; Dept. of Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea ; Kyung-Su Kim ; Lee, Heung-Kyu

Many illegal copies of digital video productions for cinema release can be found on the Internet before their official release. During the illegal copying of cinema footage, composite geometric distortions commonly occur due to the angle of the camcorder relative to the screen. We propose a novel video watermarking based on spread spectrum way that satisfies the requirements for protecting digital cinema. It enables the detector to not only extract the embedded message but also estimate the position where the camcorder recording is made. It is sure that the proposed position estimating model (PEM) can judge the seat in a theater with a mean absolute error (MAE) of (33.84, 9.53, 50.38) cm. Experimental results using various types of films show that the presented method provides the mathematical model for detecting and investigating the position of the pirate.

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Multimedia, IEEE Transactions on  (Volume:12 ,  Issue: 7 )