BR0109448A - Processo e arranjo para embutir uma marca d'água em um sinal de informação - Google Patents

Processo e arranjo para embutir uma marca d'água em um sinal de informação

Info

Publication number
BR0109448A
BR0109448A BR0109448-3A BR0109448A BR0109448A BR 0109448 A BR0109448 A BR 0109448A BR 0109448 A BR0109448 A BR 0109448A BR 0109448 A BR0109448 A BR 0109448A
Authority
BR
Brazil
Prior art keywords
watermark
arrangement
discarded
coefficients
embedding
Prior art date
Application number
BR0109448-3A
Other languages
English (en)
Inventor
Gerrit C Langelaar
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of BR0109448A publication Critical patent/BR0109448A/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; CALCULATING OR 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
    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals

Abstract

"PROCESSO E ARRANJO PARA EMBUTIR UMA MARCA D'áGUA EM UM SINAL DE INFORMAçãO". São descritos um processo e arranjo para embutir uma marca d'água em um fluxo de vídeo comprimido MPEG. A marca d'água (uma configuração de ruído espacial) é embutida descartando seletivamente os menores coeficientes DCT quantizados. Os coeficientes descartados são subseq³entemente mesclados nas seq³ências dos coeficientes restantes. A decisão de se um coeficiente é descartado ou não é feita com base em um meio de armazenagem temporária de marca d'água pré calculado e no número de coeficientes já descartados por bloco DCT 8x8. As vantagens deste processo são (i) um sistema de controle de taxa de bit muito simples e (ii) nenhuma necessidade de compensação quanto a desvio. O algoritmo pode ser implementado de uma maneira muito eficiente com respeito a exigências de memória e complexidade computacional.
BR0109448-3A 2001-01-23 2001-12-21 Processo e arranjo para embutir uma marca d'água em um sinal de informação BR0109448A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP01200277 2001-01-23
EP01204680 2001-12-05
PCT/IB2001/002708 WO2002060182A1 (en) 2001-01-23 2001-12-21 Watermarking a compressed information signal

Publications (1)

Publication Number Publication Date
BR0109448A true BR0109448A (pt) 2003-06-03

Family

ID=26076823

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0109448-3A BR0109448A (pt) 2001-01-23 2001-12-21 Processo e arranjo para embutir uma marca d'água em um sinal de informação

Country Status (9)

Country Link
US (1) US20020129253A1 (pt)
JP (1) JP4248241B2 (pt)
KR (1) KR20020088086A (pt)
CN (1) CN100459708C (pt)
BR (1) BR0109448A (pt)
MX (1) MXPA02009217A (pt)
PL (1) PL361764A1 (pt)
RU (1) RU2288546C2 (pt)
WO (1) WO2002060182A1 (pt)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7006661B2 (en) 1995-07-27 2006-02-28 Digimarc Corp Digital watermarking systems and methods
US6307949B1 (en) 1996-05-07 2001-10-23 Digimarc Corporation Methods for optimizing watermark detection
US6229924B1 (en) 1996-05-16 2001-05-08 Digimarc Corporation Method and apparatus for watermarking video images
US20030131350A1 (en) 2002-01-08 2003-07-10 Peiffer John C. Method and apparatus for identifying a digital audio signal
US7567721B2 (en) 2002-01-22 2009-07-28 Digimarc Corporation Digital watermarking of low bit rate video
KR100453683B1 (ko) * 2002-03-15 2004-10-20 한국전자통신연구원 샘플 확장을 이용한 공간영역 블라인드 워터마크 삽입 및검출 방법
AU2003268528B2 (en) 2002-10-23 2008-12-11 Nielsen Media Research, Inc. Digital data insertion apparatus and methods for use with compressed audio/video data
CN1695379A (zh) 2002-10-30 2005-11-09 皇家飞利浦电子股份有限公司 自适应水印
JP4107063B2 (ja) * 2002-11-26 2008-06-25 日本ビクター株式会社 暗号情報の送受信システム、送受信方法、暗号情報埋め込み用プログラム及び暗号情報記録装置
US20040120404A1 (en) * 2002-11-27 2004-06-24 Takayuki Sugahara Variable length data encoding method, variable length data encoding apparatus, variable length encoded data decoding method, and variable length encoded data decoding apparatus
US7177441B2 (en) * 2002-12-09 2007-02-13 International Business Machines Corporation System and method for secret communication
FR2849563B1 (fr) * 2002-12-31 2005-02-11 Medialive Marquage personnalise pour la protection de flux audiovisuels numeriques
US20060078212A1 (en) * 2003-01-23 2006-04-13 Koninklijke Philips Electronics N.V. Embedding a watermark in a coded signal
US7460684B2 (en) 2003-06-13 2008-12-02 Nielsen Media Research, Inc. Method and apparatus for embedding watermarks
WO2005031634A1 (en) 2003-08-29 2005-04-07 Nielsen Media Research, Inc. Methods and apparatus for embedding and recovering an image for use with video content
TWI404419B (zh) * 2004-04-07 2013-08-01 Nielsen Media Res Inc 與壓縮過音頻／視頻資料一起使用之資料插入方法、系統、機器可讀取媒體及設備
EP1743296B1 (en) * 2004-04-27 2008-08-13 Koninklijke Philips Electronics N.V. Watermarking a compressed information signal
WO2005122080A1 (en) * 2004-06-08 2005-12-22 Koninklijke Philips Electronics N.V. Variance based variation of watermarking depth in a media signal
WO2005122586A1 (en) * 2004-06-08 2005-12-22 Koninklijke Philips Electronics N.V. Compensating watermark irregularities caused by moved objects
KR101087588B1 (ko) 2004-07-02 2011-11-29 닐슨 미디어 리서치 인코퍼레이티드 압축 디지털 비트스트림을 믹싱하는 방법 및 장치
CN100387062C (zh) * 2005-07-01 2008-05-07 中山大学 一种带补偿的保护mpeg-2视频数据的方法
FR2894759A1 (fr) * 2005-12-12 2007-06-15 Nextamp Sa Procede et dispositif de tatouage sur flux
KR101213161B1 (ko) 2006-06-14 2012-12-17 삼성전자주식회사 압축영역에서의 비디오 워터마킹 장치 및 그 방법
US8107669B2 (en) 2006-06-14 2012-01-31 Samsung Electronics Co., Ltd. Video watermarking apparatus in compression domain and method using the same
WO2008045950A2 (en) 2006-10-11 2008-04-17 Nielsen Media Research, Inc. Methods and apparatus for embedding codes in compressed audio data streams
KR101398534B1 (ko) 2007-03-23 2014-05-27 톰슨 라이센싱 코딩된 비트스트림의 수정
JP5467651B2 (ja) * 2007-06-14 2014-04-09 トムソン ライセンシング 符号化ビット・ストリームの修正
CN101494756B (zh) * 2009-02-11 2011-01-05 北京航空航天大学 一种可逆视频水印无损漂移补偿方法
CN101651834B (zh) * 2009-08-28 2011-07-06 北京大学深圳研究生院 视频数字水印嵌入方法及其装置
CN102572609B (zh) * 2010-12-08 2014-10-08 中国科学院声学研究所 一种嵌入式系统中的视频完整性认证方法
CN103765886B (zh) * 2011-08-29 2017-06-13 苗太平洋控股有限公司 以amvp模式产生预测区块的方法
RU2505868C2 (ru) * 2011-12-07 2014-01-27 Ооо "Цифрасофт" Способ встраивания цифровой информации в аудиосигнал
CN107105255B (zh) * 2016-02-23 2020-03-03 阿里巴巴集团控股有限公司 视频文件中添加标签的方法和装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6031914A (en) * 1996-08-30 2000-02-29 Regents Of The University Of Minnesota Method and apparatus for embedding data, including watermarks, in human perceptible images
US5809139A (en) * 1996-09-13 1998-09-15 Vivo Software, Inc. Watermarking method and apparatus for compressed digital video
PL329943A1 (en) * 1997-01-27 1999-04-26 Koninkl Philips Electronics Nv Method of entering additional data into an encoded signal
US6330672B1 (en) * 1997-12-03 2001-12-11 At&T Corp. Method and apparatus for watermarking digital bitstreams
US6037984A (en) * 1997-12-24 2000-03-14 Sarnoff Corporation Method and apparatus for embedding a watermark into a digital image or image sequence
US6373960B1 (en) * 1998-01-06 2002-04-16 Pixel Tools Corporation Embedding watermarks into compressed video data
JP3809297B2 (ja) * 1998-05-29 2006-08-16 キヤノン株式会社 画像処理方法、装置及び媒体
US6154571A (en) * 1998-06-24 2000-11-28 Nec Research Institute, Inc. Robust digital watermarking
US6879652B1 (en) * 2000-07-14 2005-04-12 Nielsen Media Research, Inc. Method for encoding an input signal

Also Published As

Publication number Publication date
CN1419786A (zh) 2003-05-21
PL361764A1 (en) 2004-10-04
US20020129253A1 (en) 2002-09-12
KR20020088086A (ko) 2002-11-25
RU2003125864A (ru) 2005-02-27
JP4248241B2 (ja) 2009-04-02
WO2002060182A1 (en) 2002-08-01
JP2004518373A (ja) 2004-06-17
MXPA02009217A (es) 2003-05-23
RU2288546C2 (ru) 2006-11-27
CN100459708C (zh) 2009-02-04

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Legal Events

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

Free format text: REFERENTE A 9A E 10A ANUIDADE(S).

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: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2144 DE 07/02/2012.

B15K Others concerning applications: alteration of classification

Ipc: G06T 1/00 (2006.01), H04N 19/467 (2014.01), H04N 1