GENERATION AND DETECTION OF A WATERMARK ROBUST AGAINST RESAMPLING OF A SIGNAL
摘要
methods of embedding and detecting a watermark in an information signal (x(n), y'(n)) which are robust against sampling rate conversions of the watermarked signal (y(n)) adapts frame lengths used by an embedder and the detector, respectively, so as to preserve a constant ratio between the respective sampling rate and frame length. The frame lengths may be calculated from a greatest common divisor of a set of sampling rates providing watermarks which are robust against sampling rate conversions between any sampling rates of the set of sampling rates.
申请公布号
EP1393315(B1)
申请公布日期
2006.11.15
申请号
EP20020724543
申请日期
2002.04.19
申请人
KONINKLIJKE PHILIPS ELECTRONICS N.V.
发明人
BRUEKERS, ALPHONS, A., M., L.;HAITSMA, JAAP, A.;KALKER, ANTONIUS, A., C., M.;VAN DER VEEN, MINNE