Watermarking encoding and decoding

David Lowe (Inventor)

Research output: Patent

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.
Original languageEnglish
Patent numberGB 0903570.0
IPCG06T1/00
Publication statusPublished - 2 Mar 2009

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data carrier
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method

Cite this

Lowe, D. (2009). IPC No. G06T1/00. Watermarking encoding and decoding. (Patent No. GB 0903570.0).
Lowe, David (Inventor). / Watermarking encoding and decoding. IPC No.: G06T1/00. Patent No.: GB 0903570.0.
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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.",
author = "David Lowe",
year = "2009",
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Lowe, D 2009, Watermarking encoding and decoding, Patent No. GB 0903570.0, IPC No. G06T1/00.

Watermarking encoding and decoding. / Lowe, David (Inventor).

IPC No.: G06T1/00. Patent No.: GB 0903570.0.

Research output: Patent

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T1 - Watermarking encoding and decoding

AU - Lowe, David

PY - 2009/3/2

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N2 - 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.

AB - 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.

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Lowe D, inventor. Watermarking encoding and decoding. G06T1/00. 2009 Mar 2.