Scrambling for Privacy Protection in Video Surveillance Systems

  title={Scrambling for Privacy Protection in Video Surveillance Systems},
  author={Fr{\'e}d{\'e}ric Dufaux and Touradj Ebrahimi},
  journal={IEEE Transactions on Circuits and Systems for Video Technology},
In this paper, we address the problem of privacy protection in video surveillance. We introduce two efficient approaches to conceal regions of interest (ROIs) based on transform-domain or codestream-domain scrambling. In the first technique, the sign of selected transform coefficients is pseudorandomly flipped during encoding. In the second method, some bits of the codestream are pseudorandomly inverted. We address more specifically the cases of MPEG-4 as it is today the prevailing standard in… CONTINUE READING
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