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Zero Memory Information Sources Approximating to Video Watermarking Attacks

  • M. Mitrea
  • O. Dumitru
  • F. Prêteux
  • A. Vlad
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4707)

Abstract

Under the framework of the watermarking applications, to accurately model the malicious attacks becomes nowadays a challenging research topic. Following a previous study pointing out the inner limitations of the popular Gaussian model, this paper computes for the first time accurate approximations for the zero memory information sources describing some main real life attacks in video watermarking: linear and non-linear filtering, rotations, and StirMark (which may emulate the in-theatre camcorder capture). In order to obtain these models, the authors advance an original and generic statistical approach for pdf estimation combining EM Gaussian mixtures and confidence limits. This investigation procedure does not rely on any a priori assumption concerning the video/attack stationarity and handles with mathematical rigour the dependency existing among successive frames in a video sequence.

Keywords

watermarking attack pdf estimation stationarity 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • M. Mitrea
    • 1
  • O. Dumitru
    • 1
  • F. Prêteux
    • 1
  • A. Vlad
    • 2
    • 3
  1. 1.ARTEMIS Department, National Institute on Telecommunications, EvryFrance
  2. 2.Faculty of Electronics, Telecommunications and Information Technology, POLITEHNICA University of BucharestRomania
  3. 3.The Research Institute for Artificial Intelligence, Romanian Academy 

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