发明名称 VARIANCE BASED VARIATION OF WATERMARKING DEPTH IN A MEDIA SIGNAL
摘要 <p>The present invention relates to a method, device and computer program product for embedding additional data in a media signal as well as a media signal processing device having such a device for embedding additional data. In the method a media signal divided into frames having blocks of a number of signal sample values is obtained, the variance (sigma<2>) of at least one block of samples of a frame is determined, (step 34), and used for the embedding of additional data (w(i,j)) in said block, (step 36, 48).</p>
申请公布号 WO2005122080(A1) 申请公布日期 2005.12.22
申请号 WO2005IB51745 申请日期 2005.05.27
申请人 KONINKLIJKE PHILIPS ELECTRONICS N.V.;VAN LEEST, ADRIAAN, J. 发明人 VAN LEEST, ADRIAAN, J.
分类号 G06T1/00;(IPC1-7):G06T1/00 主分类号 G06T1/00
代理机构 代理人
主权项
地址