Method and device for processing and watermarking a set of...

Details Method and device for processing and watermarking a set of... Method and device for processing and watermarking a set of...

Filed on

2006-01-24

Date issued

2006-01-24

Examiner

Patel, Kanjibhai (Department: 2625)

Patent Class

Image analysis

SubClass

Applications

Other Related Categories

C382S232000, C382S240000, C358S003280, C713S176000, C370S529000

Type

Reexamination Certificate

Status

active

Patent number

06990213

Description

ABSTRACT:
The invention concerns a method of processing a set of coefficients representing a digital image (300) with a view to an insertion of at least one item of watermarking information in said image, this image being liable to undergo a set of geometric transformations and said coefficients being grouped together in regions, said method being characterized in that it includes a step (E220) of determining, amongst at least some of said regions, a set of so-called acceptable regions, adapted to receive said at least one item of watermarking information; and a step (E230) of sequencing, according to at least one predetermined criterion, at least one part of said set of acceptable regions, in an order which is invariant with respect to at least one of said geometric transformations.

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patent: 6385329 (2002-05-01), Sharma et al.
patent: 6456744 (2002-09-01), Lafe
patent: 6792128 (2004-09-01), Nguyen
patent: 2004/0001608 (2004-01-01), Rhoads
patent: 2004/0125983 (2004-07-01), Reed et al.
patent: 2004/0264732 (2004-12-01), Tian
patent: 1 043 687 (2000-11-01), None
“Perceptual Digital Watermark of Images Using Wavelet Transform”, Wei, et al., IEEE Transactions on Consumer Electronics, vol. 44, No. 4, Nov. 1998, pps. 1267-1272.
“A New Wavelet-Based Scheme for Watermarking Images”, Dugad, et al., ICIP '98-International Conference on Image Processing, IEEE Computer Society, vol. 2, Conf. 5, Oct. 1998, pps. 419-423.
U.S. Appl. No. 09/544,159, filed Apr. 6, 2000.
U.S. Appl. No. 09/450,750, filed Nov. 30, 1999.

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