BRPI0411667A - método e aparelho de decodificação para detecção de marcas d'água em um fluxo de bits de vìdeo compactado - Google Patents

método e aparelho de decodificação para detecção de marcas d'água em um fluxo de bits de vìdeo compactado

Info

Publication number
BRPI0411667A
BRPI0411667A BRPI0411667-4A BRPI0411667A BRPI0411667A BR PI0411667 A BRPI0411667 A BR PI0411667A BR PI0411667 A BRPI0411667 A BR PI0411667A BR PI0411667 A BRPI0411667 A BR PI0411667A
Authority
BR
Brazil
Prior art keywords
video
coefficients
bit stream
video bit
unit
Prior art date
Application number
BRPI0411667-4A
Other languages
English (en)
Inventor
Jill Macdonald Boyce
Daniel Richard Girellini
Peng Yin
Original Assignee
Thomson Licensing
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 Thomson Licensing filed Critical Thomson Licensing
Publication of BRPI0411667A publication Critical patent/BRPI0411667A/pt

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
    • G06T1/0042—Fragile watermarking, e.g. so as to detect tampering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/18—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a set of transform coefficients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H04N19/467—Embedding additional information in the video signal during the compression process characterised by the embedded information being invisible, e.g. watermarking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/48—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using compressed domain processing techniques other than decoding, e.g. modification of transform coefficients, variable length coding [VLC] data or run-length data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Image Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

"MéTODO E APARELHO DE DECODIFICAçãO PARA DETECçãO DE MARCAS D<39>áGUA EM UM FLUXO DE BITS DE VìDEO COMPACTADO". Um codificador de vídeo (600), decodificador (700), e métodos (200, 300, 400, 500) para inserir marca d<39>água em conteúdo de vídeo, são revelados; o codificador incluindo uma unidade de quantização (630) para quantizar coeficientes do fluxo de bits de vídeo, e uma unidade de integração (635) em comunicação de sinal com a unidade de quantização para integrar bits da impressão digital em blocos do fluxo de bits de vídeo como uma função da paridade do número de coeficientes codificados no bloco; e o decodificador incluindo uma unidade de detecção (715) para detectar bits da impressão digital nos blocos do fluxo de bits de vídeo como uma função da paridade do número de coeficientes codificados no bloco, e uma unidade de quantização inversa (720) em comunicação de sinal com a unidade de detecção para quantização inversa dos coeficientes do fluxo de bits de vídeo.
BRPI0411667-4A 2003-06-25 2004-06-23 método e aparelho de decodificação para detecção de marcas d'água em um fluxo de bits de vìdeo compactado BRPI0411667A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48230203P 2003-06-25 2003-06-25
PCT/US2004/020029 WO2005004493A1 (en) 2003-06-25 2004-06-23 Decoding method and apparatus for detection of watermarks in a compressed video bitstream

Publications (1)

Publication Number Publication Date
BRPI0411667A true BRPI0411667A (pt) 2006-08-08

Family

ID=33563846

Family Applications (2)

Application Number Title Priority Date Filing Date
BRPI0411663-1A BRPI0411663A (pt) 2003-06-25 2004-06-23 método e aparelho de codificação para inserção de marcas d'água em um fluxo de bits de vìdeo compactado
BRPI0411667-4A BRPI0411667A (pt) 2003-06-25 2004-06-23 método e aparelho de decodificação para detecção de marcas d'água em um fluxo de bits de vìdeo compactado

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BRPI0411663-1A BRPI0411663A (pt) 2003-06-25 2004-06-23 método e aparelho de codificação para inserção de marcas d'água em um fluxo de bits de vìdeo compactado

Country Status (11)

Country Link
US (1) US20070053438A1 (pt)
EP (2) EP1636994B1 (pt)
JP (2) JP4726141B2 (pt)
KR (2) KR101100811B1 (pt)
CN (2) CN1810038B (pt)
BR (2) BRPI0411663A (pt)
DE (2) DE602004022548D1 (pt)
ES (1) ES2330440T3 (pt)
MX (2) MXPA05013567A (pt)
MY (2) MY137898A (pt)
WO (2) WO2005004493A1 (pt)

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Also Published As

Publication number Publication date
US20070053438A1 (en) 2007-03-08
MY137898A (en) 2009-03-31
JP4726140B2 (ja) 2011-07-20
ES2330440T3 (es) 2009-12-10
EP1636995B1 (en) 2010-06-02
WO2005004493A1 (en) 2005-01-13
EP1636994B1 (en) 2009-08-12
EP1636994A1 (en) 2006-03-22
KR101100843B1 (ko) 2012-01-02
JP2007525073A (ja) 2007-08-30
WO2005004494A1 (en) 2005-01-13
KR20060027814A (ko) 2006-03-28
JP2007525074A (ja) 2007-08-30
MXPA05013572A (es) 2006-08-18
CN1810038A (zh) 2006-07-26
JP4726141B2 (ja) 2011-07-20
MXPA05013567A (es) 2006-08-18
EP1636995A1 (en) 2006-03-22
DE602004022548D1 (de) 2009-09-24
CN100496125C (zh) 2009-06-03
KR20060027810A (ko) 2006-03-28
CN1810038B (zh) 2010-06-09
DE602004027486D1 (de) 2010-07-15
MY139799A (en) 2009-10-30
BRPI0411663A (pt) 2006-08-08
KR101100811B1 (ko) 2012-01-02
CN1806442A (zh) 2006-07-19

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