Apparatus and method for embedding a watermark usi

专利名称：Apparatus and method for embedding a

watermark using sub-band filtering

发明人：Minne Van Der Veen,Aweke Negash

Lemma,Alphons Antonius Maria LambertusBruekers

申请号：US10557691申请日：20040524

公开号：US20070071277A1公开日：20070329

专利附图：

摘要：The invention relates to a system for embedding a watermark into an input

media signal. A plurality of sub-band signals of a sub-band encoded input signal isobtained; preferably by de-multiplexing of the corresponding bitstream. A set of sub-band signals is filtered by a sub-band filter () which has a response associated with thewatermark. The sub-band filter () thereby generates a set of filtered sub-band signalswhich are combined into an output signal having the desired watermark. The outputsignal is preferably a compressed sub-band bitstream signal. A low complexity approachfor embedding a watermark into a media signal by filtering in the sub-band domain isthus achieved obviating the requirement for decoding and re-encoding of the mediasignal.

申请人：Minne Van Der Veen,Aweke Negash Lemma,Alphons Antonius MariaLambertus Bruekers

地址：Eindhoven NL,Eindhoven NL,Eindhoven NL

国籍：NL,NL,NL

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