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An Optimized Selective Encryption for Video Confidentiality

  • Khalfan AlmarashdaEmail author
  • Ali Dawood
  • Thomas Martin
  • Mohammed Al-Mualla
  • Harish Bhaskar
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9164)

Abstract

Selective Encryption (SE) offers effective and efficient protection of visual content for assuring video confidentiality. However, it is challenging to optimize SE’s computational overhead while maintaining encryption effectiveness. This paper suggests the study of classifying the targeted sign-flip Quantized Coefficients (QC) so as to minimize the Encryption Computation Overhead (ECO), while maximizing Perceptual Encryption Effectiveness (PEE) both across the H.264/AVC and the HEVC video coding standards. The evaluation of this min-max optimization is based on the number of encryption bits used to flip the targeted QC sign and the Peak Signal to Noise Ratio (PSNR) estimated post encryption for quantifying ECO and PEE respectively. Results of simulation on different video sequences indicate that the derived set of QC’s can reduce ECO cost by up to 78 % without affecting the video confidentiality when compared to state-of-the-art approaches.

Keywords

Video Sequence Advance Encryption Standard Computational Overhead Standard Video Decode Scheme 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Khalfan Almarashda
    • 1
    Email author
  • Ali Dawood
    • 1
  • Thomas Martin
    • 1
  • Mohammed Al-Mualla
    • 1
  • Harish Bhaskar
    • 1
  1. 1.Electrical and Computer Engineering DepartmentKhalifa University of Science, Technology and ResearchAbu DhabiUAE

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