Apparatus and method for detecting embedded watermarks

Details Apparatus and method for detecting embedded watermarks Apparatus and method for detecting embedded watermarks

2007-08-28

2007-08-28

Vu, Kim (Department: 2135)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C382S181000, C382S276000, C382S278000

Reexamination Certificate

active

10317973

ABSTRACT:
A detecting data processing apparatus configured to identify at least one of a plurality of code words present in a marked version of a material item. The detecting apparatus including a registration processor operable to compare the samples of the marked material item with a copy of the original material item samples. If a sample of the marked material item and the original material item differ by a comparison threshold, the registration processor replaces the compared sample of the marked material item with the corresponding sample from the original material item.

REFERENCES:
patent: 5291563 (1994-03-01), Maeda
patent: 5915027 (1999-06-01), Cox et al.
patent: 5949885 (1999-09-01), Leighton
patent: 6278792 (2001-08-01), Cox et al.
patent: 6477431 (2002-11-01), Kalker et al.
patent: 6738493 (2004-05-01), Cox et al.
patent: 6901514 (2005-05-01), Iu et al.
patent: 7051203 (2006-05-01), Smith
patent: 2001/0046308 (2001-11-01), Nakano et al.
patent: 0 840 513 (1998-05-01), None
patent: 1 030 511 (2000-08-01), None
patent: 2 328 579 (1999-02-01), None
patent: 2 358 100 (2001-07-01), None
patent: 2000216984 (2000-08-01), None
patent: WO98 03014 (1998-01-01), None
patent: WO98/54897 (1998-12-01), None
patent: WO99/38318 (1999-07-01), None
patent: WO99/45706 (1999-09-01), None
patent: WO 01 50409 (2001-07-01), None
patent: WO 01/76253 (2001-10-01), None
Cox et al , “Secure Spread Spectrum Watermarking for Multimedia”, IEEE Transaction on Image Processing, vol. 6, No. 12, Dec. 1997, pp. 1673-1687.
Wang et al, “DCT-Based Image-Independent Digital Watermarking”, Proceedings of ICSP2000, copyright 2000, pp. 942-945.
Cox I J et al: “Secure spread spectrum watermarking for multimedia” IEEE Transactions on Image Processing, Dec. 1997, IEEE, USA, vol. 6, No. 12, pp. 1673-1687, XP002282585, ISSN: 1057-7149.
Du Buf J M et al: “A Quantitative Comparison Edge-Preserving Smoothing Techniques” Signal Processing, Elsevier Science Publishers B.V. Amsterdam, NL, vol. 21, No. 4, Dec. 1, 1990, pp. 289-301, XP000175689 ISSN: 0165-1684.
Proc. Int. Conf. On Image Processing, 1999, ICIP 99, vol. 1, pp. 296-300, “An image watermarking method based on the wavelet transform”, H Inoue et al, ISBN: 0-7803-5467-2.

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