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Wavelet based feature modulation watermarks and related applications

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G06R-009/00
출원번호 US-0645779 (2000-08-24)
발명자 / 주소
  • Tian, Jun
  • Decker, Stephen K.
출원인 / 주소
  • Digimarc Corporation
대리인 / 주소
    Meyer, Joel R.Digimarc Corporation
인용정보 피인용 횟수 : 88  인용 특허 : 28

초록

A watermark embedder decomposes a media signal from its perceptual domain to subbands and embeds a message signal in the edge information of neighboring coefficients of those subbands. A compatible watermark decoder decomposes the watermarked signal into subbands and demodulates the message signal f

대표청구항

A watermark embedder decomposes a media signal from its perceptual domain to subbands and embeds a message signal in the edge information of neighboring coefficients of those subbands. A compatible watermark decoder decomposes the watermarked signal into subbands and demodulates the message signal f

이 특허에 인용된 특허 (28)

  1. Senoh Takanori,JPX, Apparatus and method for watermark data insertion and apparatus and method for watermark data detection.
  2. Hwang Jae-Sik,KRX, Buffer data control circuit and method in image compression system using wavelet system using wavelet transform.
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  5. Rhoads Geoffrey B., Computer system linked by using information in data objects.
  6. Sandford ; II Maxwell T. ; Handel Theodore G., Data validation.
  7. Linnartz Johan P. M. G.,NLX, Detecting a watermark embedded in an information signal.
  8. Fridrich Jiri, Digital watermarking by adding random, smooth patterns.
  9. Tewfik Ahmed H. ; Swanson Mitchell D. ; Zhu Bin, Digital watermarking to resolve multiple claims of ownership.
  10. Bhaskaran Vasudev ; Ratnakar Viresh, Fragile watermarks for detecting tampering in images.
  11. Adams Phillip M., Media-independent document security method and apparatus.
  12. Barton James M. (101 Sund Ave. Los Gatos CA 95032), Method and apparatus for embedding authentication information within digital data.
  13. Tewfik Ahmed H. ; Swanson Mitchell D. ; Zhu Bin, Method and apparatus for scene-based video watermarking.
  14. Todor Cooklev, Method and apparatus for wavelet-based digital watermarking.
  15. Powell Robert D. ; Nitzberg Mark J., Method and system for digital image signatures.
  16. Bloom Jeffrey A. ; Cox Ingemar J. ; Miller Matthew L., Method for data preparation and watermark insertion.
  17. Honsinger Chris W. ; Daly Scott J., Method for detecting rotation and magnification in images.
  18. Manjunath B. S. ; Chae Jong Jin ; Mukherjee Debargha ; Mitra Sanjit K., Method for embedding and extracting digital data in images and video.
  19. Rhoads Geoffrey B., Methods for surveying dissemination of proprietary empirical data.
  20. Hou Hsieh Sheng, Modulated lapped transform method.
  21. Rhoads Geoffrey ; Gustafson Ammon, Multiple watermarking techniques for documents and other data.
  22. Braudaway Gordon Wesley ; Mintzer Frederick Cole, Protecting images with an image watermark.
  23. Briggs Robert (Annandale VA) Iannacone Carmen (Fairfax VA) Rothey James (Fairfax VA) Evans David (Falls Church VA), Protection of an electronically stored image in a first color space by the alteration of a digital component in a second.
  24. Rhoads Geoffrey B., Security system for photographic identification.
  25. Rhoads Geoffrey B. (West Linn OR), Steganography methods employing embedded calibration data.
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  27. Wu Min ; Liu Bede, Watermarking scheme for image authentication.
  28. Ravi K. Sharma ; Adnan M. Alattar ; Farid Ahmed ; Geoffrey B. Rhoads, Wavelet domain watermarks.

이 특허를 인용한 특허 (88)

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  30. Fletcher,Peter Alleine, Local phase filter to assist correlation.
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