Methods of synchronizing digital watermarks

Authors:
N. V. Koshkina
Affiliations:
Cybernetics Institute, National Academy of Sciences of Ukraine, Kiev, Ukraine
Venue:
Cybernetics and Systems Analysis
Year:
2008

Citing 6
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Abstract

Various methods of synchronizing digital watermarks are described and compared. The methods are grouped into the following two categories: compensation of geometric distortions and extraction of an invariant domain. The methods considered are as follows: template matching, self-reference watermarking, and feature point methods, methods based on the Radon transform, and invariant extraction by means of the Fourier-Mellin transform.