Estimating the probability of false alarm for a zero-bit watermarking technique

  • Authors:
  • T. Furon;C. Jégourel;A. Guyader;F. Cérou

  • Affiliations:
  • Thomson Security Lab, Cesson-Sévigné;INRIA Rennes Bretagne Atlantique, ASPI, Rennes;INRIA Rennes Bretagne Atlantique, ASPI, Rennes;INRIA Rennes Bretagne Atlantique, ASPI, Rennes

  • Venue:
  • DSP'09 Proceedings of the 16th international conference on Digital Signal Processing
  • Year:
  • 2009

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Abstract

Assessing that a probability of false alarm is below a given significance level is a crucial issue in watermarking. We propose an iterative and self-adapting algorithm which estimates very low probabilities of error. Some experimental investigations validates its performance for a rare detection scenario where there exists a close form formula of the probability of false alarm. Our algorithm appears to be much quicker and more accurate than a classical Monte Carlo estimator. It even allows the experimental measurement of error exponents.