Standards compliant watermarking for access management

Details Standards compliant watermarking for access management Standards compliant watermarking for access management

2006-05-16

2006-05-16

Patel, Kanjibhai (Department: 2625)

Image analysis

Applications

C380S213000

Reexamination Certificate

active

07046818

ABSTRACT:
Visible watermarking techniques for digital images and video operate on decoded transform coefficients and maintain the watermarked data in the same compressed format as the original so that the watermarked data can be viewed with standard tools and applications. Moreover, for most of the techniques presented, the watermarked data has exactly the same compressed size as the original. The watermark can be inserted and removed using a key for applications requiring content protection. The watermark insertion and removal algorithms are very efficient and exploit some features of compressed data formats (such as JPEG and MPEG) which allow most of the work to be done in the compressed domain.

REFERENCES:
patent: 6037984 (2000-03-01), Isnardi et al.
patent: 6154541 (2000-11-01), Zhang
patent: 6208745 (2001-03-01), Florencio et al.
patent: 6222932 (2001-04-01), Rao et al.
patent: 6229924 (2001-05-01), Rhoads et al.
patent: 6240121 (2001-05-01), Senoh
patent: 6246802 (2001-06-01), Fujihara et al.
patent: 6285775 (2001-09-01), Wu et al.
patent: 6343138 (2002-01-01), Rhoads
patent: 6411725 (2002-06-01), Rhoads
patent: 6539475 (2003-03-01), Cox et al.
patent: 6611607 (2003-08-01), Davis et al.
patent: 6668246 (2003-12-01), Yeung et al.
patent: 6671376 (2003-12-01), Koto et al.
patent: 1 039 414 (2000-09-01), None
patent: 1 069 757 (2001-01-01), None
patent: WO 01/16869 (2001-03-01), None
patent: WO 01/45316 (2001-06-01), None
H. Fujii, et al., “Partial-Scrambling of Information”, NTT Review, Telecommunications Assoc., Tokyo, JP. vol. 11, No. 1, Jan. 1999, pp. 116-123.
W. Zeng, et al., “Efficient Frequency Domain Video Scrambling for Content Access Control”, ACM Multimedia, Proceedings of the International Conference, New York, NY, Oct. 30, 1999, pp. 285-294.
J. Dittmann, et al., Enabling Technology for the Trading of MPEG-encoded Video, Berlin, Germany, Jul. 7, 1997, pp. 314-324.
Shi Changgui, et al., “An Efficient MPEG Video Encryption Algorithm”, Seventeenth IEEE Symposium, Oct. 20, 1998, pp. 381-386.
L. Qiao, et al., “Comparison of MPEG Encryption Algorithms”, Computers and Graphics, Pergamon Press Ltd., Oxford, GB, vol. 22, No. 4, pp. 437-448, Aug. 1, 1998.
Chen, Pei-Min, “A Visible Watermarking Mechanism Using a Statistic Approach,” IEEE, 2000, pp. 910-913.
Mohanty, Saraju P., et al., “A DCT Domain Visible Watermarking Technique For Images,” IEEE, 2000, pp. 1029-1032.
Meng, Jianhao, et al., “Embedding Visible Video Watermarks In The Compressed Domain,” IEEE, 1998, pp. 474-477.

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