WO2010100398A8 - Watermark encoding and decoding - Google Patents

Watermark encoding and decoding Download PDF

Info

Publication number
WO2010100398A8
WO2010100398A8 PCT/GB2010/000308 GB2010000308W WO2010100398A8 WO 2010100398 A8 WO2010100398 A8 WO 2010100398A8 GB 2010000308 W GB2010000308 W GB 2010000308W WO 2010100398 A8 WO2010100398 A8 WO 2010100398A8
Authority
WO
WIPO (PCT)
Prior art keywords
carrier data
data
source
watermark encoding
transforming
Prior art date
Application number
PCT/GB2010/000308
Other languages
French (fr)
Other versions
WO2010100398A1 (en
Inventor
David Lowe
Rajeswari Basava Matam
Original Assignee
Aston University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aston University filed Critical Aston University
Publication of WO2010100398A1 publication Critical patent/WO2010100398A1/en
Publication of WO2010100398A8 publication Critical patent/WO2010100398A8/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • G06T1/0021—Image watermarking
    • G06T1/005—Robust watermarking, e.g. average attack or collusion attack resistant
    • G06T1/0071—Robust watermarking, e.g. average attack or collusion attack resistant using multiple or alternating watermarks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
    • H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
    • H04N1/32154—Transform domain methods
    • H04N1/32187—Transform domain methods with selective or adaptive application of the additional information, e.g. in selected frequency coefficients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
    • H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
    • H04N1/3232—Robust embedding or watermarking

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.
PCT/GB2010/000308 2009-03-02 2010-02-22 Watermark encoding and decoding WO2010100398A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0903570.0 2009-03-02
GB0903570A GB0903570D0 (en) 2009-03-02 2009-03-02 Watermark encoding and decoding

Publications (2)

Publication Number Publication Date
WO2010100398A1 WO2010100398A1 (en) 2010-09-10
WO2010100398A8 true WO2010100398A8 (en) 2011-02-03

Family

ID=40566015

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2010/000308 WO2010100398A1 (en) 2009-03-02 2010-02-22 Watermark encoding and decoding

Country Status (2)

Country Link
GB (1) GB0903570D0 (en)
WO (1) WO2010100398A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105741844B (en) * 2016-03-30 2019-03-22 杭州电子科技大学 A kind of digital audio watermarking algorithm based on DWT-SVD-ICA
US11409845B2 (en) 2019-01-17 2022-08-09 Nxp B.V. Method for determining if a machine learning model has been copied
US11586989B2 (en) 2019-07-15 2023-02-21 Nxp B.V. Method for detecting if a machine learning model has been copied using intermediate outputs of the machine learning model
US11500970B2 (en) 2019-08-02 2022-11-15 Nxp B.V. Machine learning model and method for determining if the machine learning model has been copied
US11409843B2 (en) 2019-10-10 2022-08-09 Nxp B.V. Method for protecting a software program from copying

Also Published As

Publication number Publication date
GB0903570D0 (en) 2009-04-08
WO2010100398A1 (en) 2010-09-10

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