Watermarked Movie Soundtrack Finds the Position of the Camcorder in a Theater

@article{Nakashima2009WatermarkedMS,
  title={Watermarked Movie Soundtrack Finds the Position of the Camcorder in a Theater},
  author={Yuta Nakashima and Ryuki Tachibana and Noboru Babaguchi},
  journal={IEEE Transactions on Multimedia},
  year={2009},
  volume={11},
  pages={443-454}
}
In recent years, the problem of camcorder piracy in theaters has become more serious due to technical advances in camcorders. In this paper, as a new deterrent to camcorder piracy, we propose a system for estimating the recording position from which a camcorder recording is made. The system is based on spread-spectrum audio watermarking for the multichannel movie soundtrack. It utilizes a stochastic model of the detection strength, which is calculated in the watermark detection process. Our… CONTINUE READING
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