BR9806152A - Processo e arranjo para detectar uma "marca d'água" multi-bit em um sinal, e, processo e arranjo para embutir uma "marca d'água" multi-bit em uma imagem de vìdeo - Google Patents

Processo e arranjo para detectar uma "marca d'água" multi-bit em um sinal, e, processo e arranjo para embutir uma "marca d'água" multi-bit em uma imagem de vìdeo

Info

Publication number
BR9806152A
BR9806152A BR9806152-6A BR9806152A BR9806152A BR 9806152 A BR9806152 A BR 9806152A BR 9806152 A BR9806152 A BR 9806152A BR 9806152 A BR9806152 A BR 9806152A
Authority
BR
Brazil
Prior art keywords
bit
watermark
arrangement
detecting
signal
Prior art date
Application number
BR9806152-6A
Other languages
English (en)
Inventor
Johan Paul Marie Gera Linnartz
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 BR9806152A publication Critical patent/BR9806152A/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
    • G06T1/005—Robust watermarking, e.g. average attack or collusion attack resistant
    • 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
    • H04N1/00002—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for
    • 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
    • H04N1/00002—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for
    • H04N1/00005—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for relating to image data
    • 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
    • H04N1/00002—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for
    • H04N1/00026—Methods therefor
    • H04N1/00037—Detecting, i.e. determining the occurrence of a predetermined state
    • 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
    • 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
    • G06T2201/0051—Embedding of the watermark in the spatial domain
    • 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
    • G06T2201/0061—Embedding of the watermark in each block of the image, e.g. segmented watermarking
    • 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
    • G06T2201/0065—Extraction of an embedded watermark; Reliable detection
    • 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
    • G06T2201/0083—Image watermarking whereby only watermarked image required at decoder, e.g. source-based, blind, oblivious

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Television Systems (AREA)
  • Image Analysis (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

"PROCESSO E ARRANJO PARA DETECTAR UMA MARCA D'áGUA" MULTI-BIT EM UM SINAL, E, PROCESSO E ARRANJO PARA EMBUTIR UMA "MARCA D'áGUA" MULTI-BIT EM UMA IMAGEM DE VìDEO" Um processo e arranjo para detectar uma "marca d'água" mutli-bit em um sinal (por exemplo, uma imagem de vídeo) são descritos. Cada bit do valor multi-bit é representado por uma subconfiguração de "marca d'água" embutida no sinal. Aos invés de detectar de uma maneira convencional a presença de cada subconfiguração individual (isto é, detectar cada bit individual), a detecção compreende as etapas de: detectar (24, 23) a presença da "marca d'água" plena no sinal, independente de seu valor multi-bit, e detectar (25) por qual extensão a presença das subconfigurações corresponde ao valor multi-bit a ser verificado. A confiabilidade da detecção da "marca d'água" é deste modo melhorada.
BR9806152-6A 1997-09-02 1998-08-17 Processo e arranjo para detectar uma "marca d'água" multi-bit em um sinal, e, processo e arranjo para embutir uma "marca d'água" multi-bit em uma imagem de vìdeo BR9806152A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP97202700 1997-09-02
PCT/IB1998/001253 WO1999012331A2 (en) 1997-09-02 1998-08-17 Watermarking an information signal

Publications (1)

Publication Number Publication Date
BR9806152A true BR9806152A (pt) 2000-01-11

Family

ID=8228696

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9806152-6A BR9806152A (pt) 1997-09-02 1998-08-17 Processo e arranjo para detectar uma "marca d'água" multi-bit em um sinal, e, processo e arranjo para embutir uma "marca d'água" multi-bit em uma imagem de vìdeo

Country Status (23)

Country Link
US (3) US6570996B1 (pt)
EP (1) EP0935872B1 (pt)
JP (1) JP3897825B2 (pt)
KR (1) KR100594955B1 (pt)
CN (1) CN1160935C (pt)
AR (2) AR013948A1 (pt)
AT (1) ATE209418T1 (pt)
AU (1) AU8556298A (pt)
BG (1) BG63063B1 (pt)
BR (1) BR9806152A (pt)
CA (1) CA2271042A1 (pt)
CZ (1) CZ153299A3 (pt)
DE (1) DE69803268T2 (pt)
ES (1) ES2168778T3 (pt)
HU (1) HUP0001275A3 (pt)
ID (1) ID21561A (pt)
IL (1) IL129712A0 (pt)
SK (1) SK59899A3 (pt)
TR (1) TR199900953T1 (pt)
TW (1) TW401700B (pt)
WO (1) WO1999012331A2 (pt)
YU (1) YU23799A (pt)
ZA (1) ZA987922B (pt)

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Also Published As

Publication number Publication date
TW401700B (en) 2000-08-11
IL129712A0 (en) 2000-02-29
US20030194108A1 (en) 2003-10-16
US6714659B2 (en) 2004-03-30
KR100594955B1 (ko) 2006-07-03
CA2271042A1 (en) 1999-03-11
CN1160935C (zh) 2004-08-04
KR20000068877A (ko) 2000-11-25
ID21561A (id) 1999-06-24
TR199900953T1 (xx) 1999-12-21
HUP0001275A2 (hu) 2000-08-28
HUP0001275A3 (en) 2002-09-30
CZ153299A3 (cs) 1999-09-15
JP3897825B2 (ja) 2007-03-28
WO1999012331A3 (en) 1999-05-27
JP2001505390A (ja) 2001-04-17
US6570996B1 (en) 2003-05-27
EP0935872B1 (en) 2001-11-21
US20040131228A1 (en) 2004-07-08
ATE209418T1 (de) 2001-12-15
YU23799A (sh) 1999-12-27
EP0935872A2 (en) 1999-08-18
ZA987922B (en) 2000-02-29
DE69803268T2 (de) 2002-08-08
AU8556298A (en) 1999-03-22
DE69803268D1 (de) 2002-02-21
BG103366A (en) 2000-02-29
US6947573B2 (en) 2005-09-20
BG63063B1 (bg) 2001-02-28
ES2168778T3 (es) 2002-06-16
WO1999012331A2 (en) 1999-03-11
CN1237305A (zh) 1999-12-01
SK59899A3 (en) 1999-11-08
AR013948A1 (es) 2001-01-31
AR020483A1 (es) 2002-05-15

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