GB2379114A - Introducing test signals into a data signal - Google Patents

Introducing test signals into a data signal Download PDF

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Publication number
GB2379114A
GB2379114A GB0120331A GB0120331A GB2379114A GB 2379114 A GB2379114 A GB 2379114A GB 0120331 A GB0120331 A GB 0120331A GB 0120331 A GB0120331 A GB 0120331A GB 2379114 A GB2379114 A GB 2379114A
Authority
GB
United Kingdom
Prior art keywords
data
signal
transform
frequency
bands
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
GB0120331A
Other languages
English (en)
Other versions
GB0120331D0 (en
Inventor
Daniel Warren Tapson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Europe BV United Kingdom Branch
Original Assignee
Sony United Kingdom Ltd
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 Sony United Kingdom Ltd filed Critical Sony United Kingdom Ltd
Priority to GB0120331A priority Critical patent/GB2379114A/en
Publication of GB0120331D0 publication Critical patent/GB0120331D0/en
Priority to EP02254421A priority patent/EP1286305A3/en
Priority to US10/223,340 priority patent/US7352914B2/en
Priority to JP2002239758A priority patent/JP4289652B2/ja
Publication of GB2379114A publication Critical patent/GB2379114A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06T1/0064—Geometric transfor invariant watermarking, e.g. affine transform invariant
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2201/00—General purpose image data processing
    • G06T2201/005—Image watermarking
    • G06T2201/0052—Embedding of the watermark in the frequency domain
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2201/00—General purpose image data processing
    • G06T2201/005—Image watermarking
    • G06T2201/0083—Image watermarking whereby only watermarked image required at decoder, e.g. source-based, blind, oblivious

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Complex Calculations (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Picture Signal Circuits (AREA)
  • Television Systems (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Image Analysis (AREA)
GB0120331A 2001-08-21 2001-08-21 Introducing test signals into a data signal Withdrawn GB2379114A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB0120331A GB2379114A (en) 2001-08-21 2001-08-21 Introducing test signals into a data signal
EP02254421A EP1286305A3 (en) 2001-08-21 2002-06-25 Data processing apparatus
US10/223,340 US7352914B2 (en) 2001-08-21 2002-08-19 Data processing apparatus
JP2002239758A JP4289652B2 (ja) 2001-08-21 2002-08-20 データ処理装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0120331A GB2379114A (en) 2001-08-21 2001-08-21 Introducing test signals into a data signal

Publications (2)

Publication Number Publication Date
GB0120331D0 GB0120331D0 (en) 2001-10-17
GB2379114A true GB2379114A (en) 2003-02-26

Family

ID=9920753

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0120331A Withdrawn GB2379114A (en) 2001-08-21 2001-08-21 Introducing test signals into a data signal

Country Status (4)

Country Link
US (1) US7352914B2 (cg-RX-API-DMAC7.html)
EP (1) EP1286305A3 (cg-RX-API-DMAC7.html)
JP (1) JP4289652B2 (cg-RX-API-DMAC7.html)
GB (1) GB2379114A (cg-RX-API-DMAC7.html)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4199293B2 (ja) * 2004-03-26 2008-12-17 ニュージャージー インスティチュート オブ テクノロジー 整数ウエーブレット拡散スペクトラムに基づく可逆データ隠蔽のためのシステム及び方法
JP4526867B2 (ja) * 2004-05-12 2010-08-18 株式会社エヌ・ティ・ティ・データ 電子透かし埋込装置、及び電子透かし読出装置
GB2421132A (en) * 2004-12-09 2006-06-14 Sony Uk Ltd Registering a water marked image with an original image by calculating distortion vector estimates
US8606074B2 (en) * 2006-06-13 2013-12-10 Sony Corporation Method and system for altering the presentation of broadcast content
US8660407B2 (en) * 2006-06-14 2014-02-25 Sony Corporation Method and system for altering the presentation of recorded content
CN101937560A (zh) * 2010-08-30 2011-01-05 中兴通讯股份有限公司 失真图像处理方法及装置
TWI532378B (zh) * 2010-09-09 2016-05-01 晨星半導體股份有限公司 影像編碼資料暫存裝置及其影像編碼資料暫存方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5353117A (en) * 1992-10-30 1994-10-04 Lucasarts Entertainment Company Vertical interval test signal for detecting video system low-level luminance linearity and differential gain and phase errors
US5557417A (en) * 1991-04-11 1996-09-17 Sony Corporation Multi-loop testing apparatus with means for adjusting a reproduced video signal
US5574499A (en) * 1993-05-10 1996-11-12 Nec Corporation Integrated circuit for testing a plurality of 1H memories

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5909520A (en) * 1997-08-25 1999-06-01 The United States Of America As Represented By The Secretary Of The Navy Noise coding processor
US6910011B1 (en) * 1999-08-16 2005-06-21 Haman Becker Automotive Systems - Wavemakers, Inc. Noisy acoustic signal enhancement
EP1098522A1 (en) * 1999-11-05 2001-05-09 Sony United Kingdom Limited Method and apparatus for identifying a digital signal with a watermark
US6665335B1 (en) * 1999-11-08 2003-12-16 National Instruments Corporation System and method for estimating a shift between two signals where one signal is known in advance
US6985632B2 (en) * 2000-04-17 2006-01-10 Canon Kabushiki Kaisha Image processing system, image processing apparatus, and image processing method
US6714683B1 (en) * 2000-08-24 2004-03-30 Digimarc Corporation Wavelet based feature modulation watermarks and related applications
GB2379115A (en) * 2001-08-21 2003-02-26 Sony Uk Ltd Introducing test signals into a data signal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5557417A (en) * 1991-04-11 1996-09-17 Sony Corporation Multi-loop testing apparatus with means for adjusting a reproduced video signal
US5353117A (en) * 1992-10-30 1994-10-04 Lucasarts Entertainment Company Vertical interval test signal for detecting video system low-level luminance linearity and differential gain and phase errors
US5574499A (en) * 1993-05-10 1996-11-12 Nec Corporation Integrated circuit for testing a plurality of 1H memories

Also Published As

Publication number Publication date
US20030063674A1 (en) 2003-04-03
EP1286305A3 (en) 2006-07-26
EP1286305A2 (en) 2003-02-26
JP2003235016A (ja) 2003-08-22
US7352914B2 (en) 2008-04-01
JP4289652B2 (ja) 2009-07-01
GB0120331D0 (en) 2001-10-17

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Legal Events

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)