상세정보
학술지
An asymmetric watermarking system with many embedding watermarks corresponding to one detection watermark
- 저자
- Tae Young Kim, 최혁, 이기륭, Taejeong Kim
- 발행일
- 200403
- 출처
- IEEE Signal Processing Letters, v.11 no.3, pp.375-377
- ISSN
- 1070-9908
- 출판사
- IEEE
- 협약과제
- 04MC1200, 지능형 웹스파이더를 이용한 불법 복제 콘텐츠 추적기술, 서영호
- 초록
- In this letter, we propose a new asymmetric watermarking system which can accommodate many embedding watermarks but needs only one reference watermark for detection. Such a system is useful in averting attacks that seek to estimate the embedding watermark. In the proposed system, the phase of the reference watermark is shifted randomly (clockwise or counterclockwise) in the discrete Fourier transform domain to make embedding watermarks. They are correlated with one another and have the same correlation with the reference one. We also address how to select the design parameters.
- KSP 제안 키워드
- One Detection, Transform Domain, asymmetric watermarking, design parameters, discrete Fourier Transform