Use of inferential statistics to estimate error probability of video watermarks

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

研究成果: Conference article査読

1 被引用数 (Scopus)


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.

ジャーナルProceedings of SPIE - The International Society for Optical Engineering
出版ステータスPublished - 2005
イベントProceedings of SPIE-IS and T Electronic Imaging - Security, Steganography, and Watermarking of Multimedia Contents VII - San Jose, CA, United States
継続期間: 2005 1月 172005 1月 20

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学


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