The Transactions of the Korean Institute of Electrical Engineers P (전기학회논문지P)

The Korean Institute of Electrical Engineers (대한전기학회)
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Development of Digital Watermark Inserting and Detecting System for MPEG-2 Codec

MPEG-2 Codec에 대한 디지털 워터마크 삽입 및 검출 시스템 개발

  • 황선철 (인덕대학 방송영상미디어과)
  • Received : 2010.10.06
  • Accepted : 2010.11.10
  • Published : 2010.12.01
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Abstract

This paper describes a study on developing an insert and detect system of digital watermark to the MPEG-2 coder and decoder. Digital watermark inserting system substitutes a coefficient among the DCT coefficients for new one. This replacement performs in MPEG-2 PS format. Watermark detecting system analyzes the input data stream of MPEG-2 and detect the probability of occurrence of a specific code or watermarking code. Our inserting system had very high invisibility and the PSNR of the results was 130 dB around. And our detection rate of watermark was over 99% in digital format and over 85% in analog captured format according to the quality of contents.

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References

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