BRPI0406442A - Esquema de marca d'água para vìdeo digital - Google Patents

Esquema de marca d'água para vìdeo digital

Info

Publication number
BRPI0406442A
BRPI0406442A BR0406442-9A BRPI0406442A BRPI0406442A BR PI0406442 A BRPI0406442 A BR PI0406442A BR PI0406442 A BRPI0406442 A BR PI0406442A BR PI0406442 A BRPI0406442 A BR PI0406442A
Authority
BR
Brazil
Prior art keywords
bit
watermark data
block
digital video
value
Prior art date
Application number
BR0406442-9A
Other languages
English (en)
Inventor
Mohammad Hossein Zarrabizadeh
Original Assignee
Lucent Tecnologies 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
Application filed by Lucent Tecnologies Inc filed Critical Lucent Tecnologies Inc
Publication of BRPI0406442A publication Critical patent/BRPI0406442A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • 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
    • G06T1/0085—Time domain based watermarking, e.g. watermarks spread over several images
    • 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
    • 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
    • H04N19/136—Incoming video signal characteristics or properties
    • 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
    • H04N19/186—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 colour or a chrominance component
    • 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
    • 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

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)
  • Television Systems (AREA)
  • Color Television Systems (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color Image Communication Systems (AREA)

Abstract

"ESQUEMA DE MARCA D'áGUA PARA VìDEO DIGITAL". Dados de marca d<39>água são efetivamente colocados em pelo menos uma das posições de bit, por exemplo, da parcela inteira, do valor médio de pelo menos uma das parcelas selecionadas de crominância de até cada bloco, de até uma base quadro-a-quadro. Os valores da parcela de crominância selecionada de pixels individuais em um bloco poderão ser ajustados se necessário para fazer com que a substituição resultante do bit selecionado da média. A posição de bit substituída poderá ser uma função da velocidade de ocupação do bloco. Um valor 'de margem' também poderá ser somado ao valor médio para melhor assegurar que o bit de dado de marca d<39>água sobreviva a qualquer codificação MPEG, enquanto minimiza os artefatos resultantes. Um receptor extrai o bit de dado de marca d<39>água da posição de bit selecionada do valor médio da parcela de crominância.
BR0406442-9A 2003-09-29 2004-09-23 Esquema de marca d'água para vìdeo digital BRPI0406442A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/673,892 US8861922B2 (en) 2003-09-29 2003-09-29 Watermarking scheme for digital video

Publications (1)

Publication Number Publication Date
BRPI0406442A true BRPI0406442A (pt) 2005-08-09

Family

ID=34194892

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0406442-9A BRPI0406442A (pt) 2003-09-29 2004-09-23 Esquema de marca d'água para vìdeo digital

Country Status (8)

Country Link
US (1) US8861922B2 (pt)
EP (1) EP1519311B1 (pt)
JP (2) JP2005110270A (pt)
KR (1) KR101110084B1 (pt)
CN (1) CN1604647B (pt)
AU (1) AU2004214560B2 (pt)
BR (1) BRPI0406442A (pt)
CA (1) CA2477511A1 (pt)

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CN111382610B (zh) * 2018-12-28 2023-10-13 杭州海康威视数字技术股份有限公司 一种事件检测方法、装置及电子设备
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Also Published As

Publication number Publication date
KR20050031437A (ko) 2005-04-06
CN1604647B (zh) 2010-09-22
KR101110084B1 (ko) 2012-03-08
US20050069167A1 (en) 2005-03-31
CN1604647A (zh) 2005-04-06
JP2012186852A (ja) 2012-09-27
EP1519311B1 (en) 2016-03-02
AU2004214560B2 (en) 2010-02-18
JP2005110270A (ja) 2005-04-21
CA2477511A1 (en) 2005-03-29
EP1519311A1 (en) 2005-03-30
JP5665799B2 (ja) 2015-02-04
US8861922B2 (en) 2014-10-14
AU2004214560A1 (en) 2005-04-14

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Legal Events

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B03A Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

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B08G Application fees: restoration [chapter 8.7 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

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B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2385 DE 20-09-2016 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.