Image analysis – Applications
Reexamination Certificate
2005-09-09
2010-10-19
Perungavoor, Sath V (Department: 2624)
Image analysis
Applications
C382S113000, C382S199000
Reexamination Certificate
active
07817817
ABSTRACT:
A method of concealing data in images imperceptibly alters curves therein, such as through adding a value representing the data to be hidden to each of a number of B-spline control points representing the original curve. The altered control points characterize the imperceptibly altered curve, which replaces the original curve in the image. The altered control points may be later extracted from the image and compared with the original control points to determine the hidden value. Prudent selection of the values altering the control points as well as an iterative alignment-minimization algorithm in the detection process provides protection against numerous techniques for preventing the hidden values from being recovered.
REFERENCES:
patent: 6058200 (2000-05-01), Blaseio
patent: 6304266 (2001-10-01), Li
patent: 6567087 (2003-05-01), Reid
patent: 6678378 (2004-01-01), Akiyoshi
patent: 6697497 (2004-02-01), Jensen et al.
patent: 6748362 (2004-06-01), Meyer et al.
patent: 6956568 (2005-10-01), Maekawa et al.
patent: 7117026 (2006-10-01), Shao et al.
patent: 7190805 (2007-03-01), Silverstein
patent: 7412360 (2008-08-01), Surazhsky et al.
patent: 2001/0056410 (2001-12-01), Ishigaki
patent: 2003/0128209 (2003-07-01), Maekawa et al.
patent: 2003/0161498 (2003-08-01), Oami
patent: 2004/0027344 (2004-02-01), Ohto
patent: 2004/0095352 (2004-05-01), Huang
patent: 2004/0113910 (2004-06-01), Tsai et al.
patent: 2006/0056695 (2006-03-01), Wu et al.
patent: 2008/0240491 (2008-10-01), Hori
patent: 2009/0070075 (2009-03-01), Funk
patent: 2009/0092278 (2009-04-01), Doi et al.
Sanchez-Reyes, J., “A simple technique for NURBS shape modification”, Computer Graphics and Applications, IEEE, Jan./Feb. 1997, vol. 17, Issue: 1, pp. 52-59, ISSN: 0272-1716.
Ohbuchi, R., Masuda, H., Aono, M., “A shape-preserving data embedding algorithm for NURBS curves and surfaces”, Computer Graphics International, 1999. Proceedings, 1999, pp. 180-187, ISBN: 0-7695-0185-0.
Jae Jun Lee, Nam Ik Cho, Jong Weon Kim, “Watermarking for 3D NURBS graphic data”, Multimedia Signal Processing, 2002 IEEE Workshop on, Dec. 9-11, 2002, pp. 304-307, ISBN: 0-7803-7713-3.
Jae Jun Lee, Nam Ik Cho, Sang Uk Lee, “Watermarking algorithms for 3D NURBS graphic data”, EURASIP Journal on Applied Signal Processing, vol. 2004 , (Jan. 2004), pp. 2142-2152, ISSN:1110-8657.
Chang, H., et al.; “Watermarking 2D/3D graphics for copyright protection”; in Proc. IEEE ICASSP; 2003, pp. 720-723.
Barni, M., et al.; “Robust watermarking of cartographic images”; EURASIP J. Applied Signal Process.; vol. 2, 2002, pp. 197-208.
Solachidis, V., et al.; “Watermarking polygonal lines using Fourier descriptors”; IEEE Computer Graphics Appl.; vol. 24, No. 3, May/Jun. 2004, pp. 44-51.
Ohbuchi, R.; et al.; “Watermarking 2D vector maps in the mesh-spectral domain”; Proc. Shape Modeling Int. Conf.; 2003.
Ohbuchi, R., et al.; “A shape-preserving data embedding algorithm for NURBS curves and surfaces”; in Proc. CGI; 1999, pp. 180-187.
Lee, J., et al.; “Watermarking algorithms for 3D NURBS graphic data”; EURASIP J. Appl. Signal Process.; No. 14, Oct. 2004, pp. 2142-2152.
Praun, E. et al.; “Robust mesh watermarking”; in Proc. Comput. Graphics; 1999, pp. 49-56.
Cox, I., et al.; “Secure spread spectrum watermarking for multimedia”; IEEE Trans. Image Process.; vol. 6, No. 12, Dec. 1997, pp. 1673-1687.
Xia, M., et al.; “Image registration by ‘super-curves’”; IEEE Trans. Image Process.; vol. 13, No. 5, May 2004, pp. 720-732.
Sole, A., et al.; “Morse description and geometric encoding of Digital Elevation Maps”; IEEE Trans. On Image Processing; vol. 13, No. 9, Sep. 2004, pp. 1245-1262.
Gou Hongmei
Wu Min
Perungavoor Sath V
Rosenberg , Klein & Lee
University of Maryland
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