Watermark Detection Rate and Outliers

Hyoung Joong Kim, Taehoon Kim, In Kwon Yeo

Research output: Contribution to journalConference articlepeer-review


Spread-spectrum watermarking scheme adds random noise w into the host signal x to generate watermarked signal s. Blind detector computes inner product 〈w, s〉 or its variants and decides embedded bits by its sign of the inner product. Such detection method is not robust due to high false-positive or false-negative rate. This paper introduces a novel method to reduce detection errors considerably by excluding outliers in the signal. Stable and robust definition of outlier is adopted. Informed watermarking scheme for spread-spectrum is exploited to reduce false-positive and false-negative errors. Such detectors can also enhance detection rate in other watermarking schemes.

Original languageEnglish
Pages (from-to)187-195
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2004
Externally publishedYes
EventMathematics of Data/Image Coding, Compression, and Encryption VI, with Applications - San Diego, CA, United States
Duration: 2003 Aug 52003 Aug 7

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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