BRPI0520718A2 - inserir marca d'água em conteúdo codificado - Google Patents

inserir marca d'água em conteúdo codificado

Info

Publication number
BRPI0520718A2
BRPI0520718A2 BRPI0520718-5A BRPI0520718A BRPI0520718A2 BR PI0520718 A2 BRPI0520718 A2 BR PI0520718A2 BR PI0520718 A BRPI0520718 A BR PI0520718A BR PI0520718 A2 BRPI0520718 A2 BR PI0520718A2
Authority
BR
Brazil
Prior art keywords
watermark
content
value
encoded
encoded content
Prior art date
Application number
BRPI0520718-5A
Other languages
English (en)
Inventor
Jian Zhao
Eckhard Koch
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 BRPI0520718A2 publication Critical patent/BRPI0520718A2/pt

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835—Generation of protective data, e.g. certificates
    • H04N21/8358—Generation of protective data, e.g. certificates involving watermark
    • 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
    • G06T1/0035—Output size adaptive watermarking
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • 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
    • H04N1/32165—Transform domain methods using cosine transforms
    • H—ELECTRICITY
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    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
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    • 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
    • H04N1/3217—Transform domain methods using wavelet transforms
    • H—ELECTRICITY
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    • 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
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    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
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    • H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
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    • H04N19/154—Measured or subjectively estimated visual quality after decoding, e.g. measurement of distortion
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    • 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
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    • 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
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    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • 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
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    • 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
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    • 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
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    • 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
    • G06T2201/0051—Embedding of the watermark in the spatial 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
    • G06T2201/0061—Embedding of the watermark in each block of the image, e.g. segmented watermarking
    • G—PHYSICS
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    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2508—Magnetic discs
    • G11B2220/2516—Hard disks
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
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    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G—PHYSICS
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    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/90—Tape-like record carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Image Processing (AREA)

Abstract

INSERIR MARCA D'áGUA EM CONTEúDO CODIFICADO. Um sistema e um método são descritos para inserir uma marca d'água em conteúdo codificado, incluindo receber conteúdo codificado, receber no mínimo uma unidade de marca d'água pré-processada e substituir diretamente um número de bits que inicia em uma posição no conteúdo codificado com um valor alternativo, onde o valor alternativo tem embutido nele sinais de marca d'água, onde o valor alternativo é selecionado dentre uma pluralidade de valores alternativos especificados em no mínimo uma dita unidade de marca d'água. Um aparelho e um método para gerar unidades de marca d'água são também descritos incluindo selecionar uma posição onde um valor em conteúdo codificado deve ser substituido por um valor alternativo e calcular uma pluralidade de valores alternativos para cada posição selecionada. Adicionalmente, um sistema e um método para substituir uma marca d'água em conteúdo codificado são também descritos incluindo receber conteúdo codificado, receber no mínimo uma unidade de marca d'água pré-processada e substituir um número de bits que inicia em uma posição no conteúdo codificado com um valor, onde o valor é especificado no mínimo em uma unidade de marca d'água.
BRPI0520718-5A 2005-12-05 2005-12-05 inserir marca d'água em conteúdo codificado BRPI0520718A2 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2005/043895 WO2007067168A1 (en) 2005-12-05 2005-12-05 Watermarking encoded content

Publications (1)

Publication Number Publication Date
BRPI0520718A2 true BRPI0520718A2 (pt) 2009-05-26

Family

ID=36691610

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0520718-5A BRPI0520718A2 (pt) 2005-12-05 2005-12-05 inserir marca d'água em conteúdo codificado

Country Status (9)

Country Link
US (1) US8144923B2 (pt)
EP (1) EP1958430A1 (pt)
JP (1) JP2009518945A (pt)
KR (1) KR101273473B1 (pt)
CN (1) CN101326806B (pt)
AU (1) AU2005338930B2 (pt)
BR (1) BRPI0520718A2 (pt)
TW (1) TWI439135B (pt)
WO (1) WO2007067168A1 (pt)

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US20090080689A1 (en) 2009-03-26
US8144923B2 (en) 2012-03-27
CN101326806A (zh) 2008-12-17
AU2005338930B2 (en) 2010-12-09
TW200746828A (en) 2007-12-16
CN101326806B (zh) 2011-10-19
TWI439135B (zh) 2014-05-21
KR20080075853A (ko) 2008-08-19
AU2005338930A1 (en) 2007-06-14

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