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

  • 제62권4호
  • /
  • Pages.204-209
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  • 2013
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  • 1229-800X(pISSN)
  • /
  • 2586-7792(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
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동영상 저작권보호를 위한 FFT 기반 정보 은닉 기법

FFT Based Information Concealing Method for Video Copyright Protection

  • 최일목 (인덕대학교 방송영상미디어과) ;
  • 황선철 (인덕대학교 방송영상미디어과)
  • 투고 : 2013.11.12
  • 심사 : 2013.11.27
  • 발행 : 2013.12.01
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초록

FFT based fingerprinting to conceal more information has developed for video copyright protection. More complex information of video is necessary to prove an ownership and legal distributions in invisible form. This paper describes a method to insert more information and to detect them. $3{\times}3$ points structure is used to present information. The possible ways to show are 8bit, $2^8$ = 256 where one point of 9 is always turn on. The points are marked in frequency domain that both real and imaginary party numbers are modified. The five successive frames of same scenes are used to mark because the same scene has very similar shape in FFT result. However, the detail values of coefficients are totally different each other to recognize the marked points. This paper also describes a method to detect the marked points by averaging and correlation algorithm. The PSNRs of marked images by our method had 51.138[dB] to 51.143[dB]. And we could get the correlation values from 0.79 to 0.87.

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참고문헌

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