公开(公告)号：EP2494516A1

公开(公告)日：2012-09-05

申请号：EP10825836.9

申请日：2010-08-04

申请人： Gauss Research Laboratory, Inc.

发明人： MORENO DE AYALA, Oscar ,  TIRKEL, Anatol Zygmunt

IPC分类号： G06T1/00 ,  H04N1/32

CPC分类号： H04N1/32154 ,  G06T1/0071 ,  H04N1/32203 ,  H04N1/3232 ,  H04N1/32341

摘要： A device for applying or extracting a digital watermark of two or more dimensions and a method of applying or extracting the digital watermark. The digital watermark is generated by adding a suitable number of watermarking arrays. Each watermarking array is constructed by convolving a multi-periodic shift array having a correlation bounded by a constant (two or greater) with a balanced periodic substitution sequence.