Watermarking encoding and decoding

Lowe, David (2009). Watermarking encoding and decoding. G06T1/00.

Abstract

A method of watermark encoding for embedding payload data within carrier data, the method comprising: transforming the carrier data into a plurality of corresponding source vectors using a separating matrix for an independent component analysis for the carrier data; selecting one of the source vectors based, at least in part, on a robustness criterion for the sources; modifying one or more elements of the selected source vector so that the modified one or more elements represent the payload data; and transforming the modified source vector and the plurality of source vectors other than the selected source vector using a mixing matrix for the independent component analysis for the carrier data to generate an output watermarked version of the carrier data.

Publication DOI: G06T1/00
Divisions: Engineering & Applied Sciences > Mathematics
Engineering & Applied Sciences > Systems analytics research institute (SARI)
Full Text Link: http://worldwid ... 98A1&KC=A1&ND=4
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Published Date: 2009-03-02
Authors: Lowe, David

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