A method is disclosed for embedding auxiliary data in a signal. The data is encoded into the relative position or phase of one or more basic watermark patterns. This allows multi-bit data to be embedded by using only one or a few distinct watermark patterns.
申请公布号
WO9945705(A3)
申请公布日期
1999.11.18
申请号
WO1999IB00348
申请日期
1999.03.02
申请人
KONINKLIJKE PHILIPS ELECTRONICS N.V.;PHILIPS AB;KALKER, ANTONIUS, A., C., M.
