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Smart selective encryption of H.264/AVC videos using confidentiality metrics

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Abstract

In the field of video protection, selective encryption (SE) is a scheme which ensures the visual security of a video by encrypting only a small part of the data. This paper presents a new SE algorithm for H.264/AVC videos in context-adaptive variable-length coding mode. This algorithm controls the amount of encrypted alternative coefficients (ACs) of the integer transform in the entropic encoder. Two visual quality measures, the peak signal-to-noise ratio (PSNR) and the structural similarity (SSIM), are used to measure the visual confidentiality level of each video frame and to control the amount of encrypted ACs. Moreover, a new psychovisual metric to measure the flickering is introduced, the so-called temporal structural similarity (TSSIM). This method can be applied on intra and inter frame video sequences. Several experimental results show the efficiency of the proposed method.

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Notes

  1. Visual results on these video sequences are available at http://www2.lirmm.fr/~dubois/PagesVideos.html

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Authors and Affiliations

  1. LIRMM Laboratory, UMR 5506 CNRS, University of Montpellier II, 161, rue Ada, 34095, Montpellier Cedex 05, France

    L. Dubois & W. Puech

  2. DGA, 7, rue des Mathurins, 92221, Bagneux Cedex, France

    J. Blanc-Talon

Authors
  1. L. Dubois
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  2. W. Puech
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  3. J. Blanc-Talon
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Correspondence to W. Puech.

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Dubois, L., Puech, W. & Blanc-Talon, J. Smart selective encryption of H.264/AVC videos using confidentiality metrics. Ann. Telecommun. 69, 569–583 (2014). https://doi.org/10.1007/s12243-013-0413-4

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  • DOI: https://doi.org/10.1007/s12243-013-0413-4

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