Determination of a segmentation of a digital signal for...

Details Determination of a segmentation of a digital signal for... Determination of a segmentation of a digital signal for...

2007-10-16

2007-10-16

Ahmed, Samir (Department: 2624)

Image analysis

Applications

C382S276000

Reexamination Certificate

active

10919360

ABSTRACT:
The invention is a method for determining a segmentation into distinct regions of a set of coefficients representing at least part of an image in order to insert or extract a set of watermarking signals with a predetermined cardinal. The method of the invention generates a set of acceptable segmentations, calculates, for each acceptable segmentation, a probability of error on the detection of the watermarking signals inserted in said each acceptable segmentation, and selects at least a segmentation in the set of acceptable segmentations, on consideration of the probability of error subject to a constraint on the number of regions of the selected segmentation, with respect to said predetermined cardinal.

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Kutter, E.A., “Towards Second Generation Watermarking Schemes”, Proceedings Of 6thInternational Conference On Image Processing, Oct. 24-28, 1999, pp. 320-323.
Hernandez, J.R. et al., “Statistical Analysis Of Watermarking Schemes For Copyright Protection Of Images” Proceedings Of The IEEE, vol. 87, No. 7, Jul. 1999, pp. 1142-1166.

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