ATE293316T1 - Stegotextkodierer und -dekodierer - Google Patents

Stegotextkodierer und -dekodierer

Info

Publication number
ATE293316T1
ATE293316T1 AT01953219T AT01953219T ATE293316T1 AT E293316 T1 ATE293316 T1 AT E293316T1 AT 01953219 T AT01953219 T AT 01953219T AT 01953219 T AT01953219 T AT 01953219T AT E293316 T1 ATE293316 T1 AT E293316T1
Authority
AT
Austria
Prior art keywords
stegotext
covertext
domain
log
power spectrogram
Prior art date
Application number
AT01953219T
Other languages
English (en)
Inventor
Roger Fane Sewell
Mark St John Owen
Stephen John Barlow
Simon Paul Long
Original Assignee
Activated Content Corp Inc
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
Priority claimed from GB0018489A external-priority patent/GB2365295A/en
Priority claimed from GB0018487A external-priority patent/GB2365285A/en
Priority claimed from GB0018491A external-priority patent/GB2365296A/en
Application filed by Activated Content Corp Inc filed Critical Activated Content Corp Inc
Application granted granted Critical
Publication of ATE293316T1 publication Critical patent/ATE293316T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
    • H04H20/30—Arrangements for simultaneous broadcast of plural pieces of information by a single channel
    • H04H20/31—Arrangements for simultaneous broadcast of plural pieces of information by a single channel using in-band signals, e.g. subsonic or cue signal
    • 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
    • G06T1/0028—Adaptive watermarking, e.g. Human Visual System [HVS]-based watermarking
    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/018—Audio watermarking, i.e. embedding inaudible data in the audio signal
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2200/00—Indexing scheme for image data processing or generation, in general
    • G06T2200/28—Indexing scheme for image data processing or generation, in general involving image processing hardware
    • 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
    • G06T2201/0065—Extraction of an embedded watermark; Reliable detection

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Television Systems (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Error Detection And Correction (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Vending Machines For Individual Products (AREA)
AT01953219T 2000-07-27 2001-07-27 Stegotextkodierer und -dekodierer ATE293316T1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0018489A GB2365295A (en) 2000-07-27 2000-07-27 Watermarking key
GB0018487A GB2365285A (en) 2000-07-27 2000-07-27 Decoding watermarked data using keys and FFT
GB0018491A GB2365296A (en) 2000-07-27 2000-07-27 Encoder/decoder for watermarking a covertext signal
PCT/GB2001/003391 WO2002011326A2 (en) 2000-07-27 2001-07-27 Stegotext encoder and decoder

Publications (1)

Publication Number Publication Date
ATE293316T1 true ATE293316T1 (de) 2005-04-15

Family

ID=27255820

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01953219T ATE293316T1 (de) 2000-07-27 2001-07-27 Stegotextkodierer und -dekodierer

Country Status (8)

Country Link
US (3) US7298841B2 (de)
EP (1) EP1305901B1 (de)
JP (1) JP5105686B2 (de)
AT (1) ATE293316T1 (de)
AU (1) AU2001275712A1 (de)
CA (1) CA2417499A1 (de)
DE (1) DE60110086T2 (de)
WO (1) WO2002011326A2 (de)

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US9245529B2 (en) * 2009-06-18 2016-01-26 Texas Instruments Incorporated Adaptive encoding of a digital signal with one or more missing values
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CN102750956B (zh) * 2012-06-18 2014-07-16 歌尔声学股份有限公司 一种单通道语音去混响的方法和装置
US9197360B2 (en) * 2014-04-25 2015-11-24 The Aerospace Corporation Systems and methods for reducing a relatively high power, approximately constant envelope interference signal that spectrally overlaps a relatively low power desired signal
US9391654B2 (en) * 2014-04-25 2016-07-12 The Aerospace Corporation Systems and methods for reducing a relatively high power, approximately constant envelope interference signal that spectrally overlaps a relatively low power desired signal
KR102189730B1 (ko) * 2015-09-03 2020-12-14 주식회사 쏠리드 디지털 데이터 압축 및 복원 장치
US9654158B2 (en) 2015-10-20 2017-05-16 The Aerospace Corporation Circuits and methods for reducing an interference signal that spectrally overlaps a desired signal
US12149278B2 (en) 2015-10-20 2024-11-19 The Aerospace Corporation Circuits and methods for reducing an interference signal that spectrally overlaps a desired signal
US10340962B2 (en) 2016-05-06 2019-07-02 The Aerospace Corporation Amplitude domain circuits and methods for reducing an interference signal that spectrally overlaps a desired signal
US10206080B2 (en) * 2016-09-08 2019-02-12 Lg Electronics Inc. Method for transmitting or receiving signal in wireless communication system and apparatus therefor
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Also Published As

Publication number Publication date
CA2417499A1 (en) 2002-02-07
DE60110086T2 (de) 2006-04-06
WO2002011326A3 (en) 2003-01-23
JP2004515799A (ja) 2004-05-27
WO2002011326A2 (en) 2002-02-07
DE60110086D1 (de) 2005-05-19
EP1305901B1 (de) 2005-04-13
US7916862B2 (en) 2011-03-29
US7298841B2 (en) 2007-11-20
US7917766B2 (en) 2011-03-29
US20090190755A1 (en) 2009-07-30
EP1305901A2 (de) 2003-05-02
AU2001275712A1 (en) 2002-02-13
US20040028222A1 (en) 2004-02-12
US20080152128A1 (en) 2008-06-26
JP5105686B2 (ja) 2012-12-26

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