2 May 2006 Privacy enabling technology for video surveillance
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Abstract
In this paper, we address the problem privacy in video surveillance. We propose an efficient solution based on transformdomain scrambling of regions of interest in a video sequence. More specifically, the sign of selected transform coefficients is flipped during encoding. We address more specifically the case of Motion JPEG 2000. Simulation results show that the technique can be successfully applied to conceal information in regions of interest in the scene while providing with a good level of security. Furthermore, the scrambling is flexible and allows adjusting the amount of distortion introduced. This is achieved with a small impact on coding performance and negligible computational complexity increase. In the proposed video surveillance system, heterogeneous clients can remotely access the system through the Internet or 2G/3G mobile phone network. Thanks to the inherently scalable Motion JPEG 2000 codestream, the server is able to adapt the resolution and bandwidth of the delivered video depending on the usage environment of the client.
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Frédéric Dufaux, Frédéric Dufaux, Mourad Ouaret, Mourad Ouaret, Yousri Abdeljaoued, Yousri Abdeljaoued, Alfonso Navarro, Alfonso Navarro, Fabrice Vergnenègre, Fabrice Vergnenègre, Touradj Ebrahimi, Touradj Ebrahimi, "Privacy enabling technology for video surveillance", Proc. SPIE 6250, Mobile Multimedia/Image Processing for Military and Security Applications, 62500M (2 May 2006); doi: 10.1117/12.664945; https://doi.org/10.1117/12.664945
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