Use of inferential statistics to estimate error probability of video watermarks

Isao Echizen, Hiroshi Yoshiura, Yasuhiro Fujii, Takaaki Yamada, Satoru Tezuka

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

Errors in video watermark detection can cause serious problems, such as erroneous indication of illegal copying and erroneous copy control. These errors could not, however, be eliminated because watermarked pictures are subjected to wide varieties of image processing such as compression, resizing, filtering, or D/A or A/D conversion. Estimating errors of video watermarks is therefore an essential requirement for electric equipment that is to use copyright and copy-control information properly. This paper proposes a video watermarking method that estimates error probability from each watermarked frame at hand after image processing by using the expectation-maximization algorithm from inferential statistics. The paper also proposes a reliable detection system of video watermarks by using the proposed method. Experimental evaluations have shown that the new method can be used reliably with the margin factor and can be widely used in electric equipment as well as content-distribution systems.

Original languageEnglish
Article number40
Pages (from-to)391-399
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5681
DOIs
Publication statusPublished - 2005 Jul 21
Externally publishedYes
EventProceedings of SPIE-IS and T Electronic Imaging - Security, Steganography, and Watermarking of Multimedia Contents VII - San Jose, CA, United States
Duration: 2005 Jan 172005 Jan 20

Keywords

  • EM algorithm
  • Error probability
  • Reliable detection
  • Video watermark

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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