BRPI0900063A2 - método e aparelho para determinar se um padrão de referência está presente ou não em um sinal recebido e possivelmente impresso com marca d' água - Google Patents

método e aparelho para determinar se um padrão de referência está presente ou não em um sinal recebido e possivelmente impresso com marca d' água

Info

Publication number
BRPI0900063A2
BRPI0900063A2 BRPI0900063-1A BRPI0900063A BRPI0900063A2 BR PI0900063 A2 BRPI0900063 A2 BR PI0900063A2 BR PI0900063 A BRPI0900063 A BR PI0900063A BR PI0900063 A2 BRPI0900063 A2 BR PI0900063A2
Authority
BR
Brazil
Prior art keywords
embedded
correlation
watermark
received signal
message
Prior art date
Application number
BRPI0900063-1A
Other languages
English (en)
Inventor
Peter Georg Baum
Michael Arnold
Ulrich Gries
Walter Voessing
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 BRPI0900063A2 publication Critical patent/BRPI0900063A2/pt

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/018—Audio watermarking, i.e. embedding inaudible data in the audio signal
    • 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
    • G06T1/0078—Robust watermarking, e.g. average attack or collusion attack resistant using multiple thresholds
    • 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
    • H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
    • H04N1/32154—Transform domain methods
    • 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
    • G06T2201/0065—Extraction of an embedded watermark; Reliable detection

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Theoretical Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Image Processing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Image Analysis (AREA)

Abstract

MéTODO E APARELHO PARA DETERMINAR SE UM PADRAO DE REFERêNCIA ESTá PRESENTE OU NãO EM UM SINAL RECEBIDO E POSSIVELMENTE IMPRESSO COM MARCA D'áGUA. Muitos sistemas de impressão com marca d'água fazem uso de correlação para calcular uma métrica de detecção, o que significa que vários padrões de referência são gerados no lado de codificador e um ou mais dos mesmos são incorporados no sinal de conteúdo, dependendo da mensagem a ser incorporada. Para decodificar a mensagem incorporada, é necessário descobrir qual padrão de referência foi incorporado no lado de codificador. Isso é determinado por correlação dos padrões de referência conhecidos com o sinal de conteúdo. Um detector de marca d'água decide, dependendo do tamanho dos valores de resultado de correlação, se uma sequência pseudoaleatória dada foi incorporada ou não. Entretanto, isso não provê decisões corretas se áudio impresso com marca d'água for emitido por um alto-falante e então capturado com um microfone. De acordo com a invenção, tira-se proveito dos ecos de sinal recebido em vez de tratar os mesmos com ruído. O resultado de detecção de marca d'água é melhorado por integrar os valores de correlação resultando de ecos no pico de correlação principal, desse modo utilizando valores de amplitude de resultado de correlação localizados em uma vizinhança predeterminada de um valor de amplitude de pico de resultado de correlação e excedendo um limite predeterminado.
BRPI0900063-1A 2008-01-21 2009-01-19 método e aparelho para determinar se um padrão de referência está presente ou não em um sinal recebido e possivelmente impresso com marca d' água BRPI0900063A2 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08100694A EP2081187A1 (en) 2008-01-21 2008-01-21 Method and apparatus for determining whether or not a reference pattern is present in a received and possibly water-marked signal

Publications (1)

Publication Number Publication Date
BRPI0900063A2 true BRPI0900063A2 (pt) 2009-09-15

Family

ID=39311516

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0900063-1A BRPI0900063A2 (pt) 2008-01-21 2009-01-19 método e aparelho para determinar se um padrão de referência está presente ou não em um sinal recebido e possivelmente impresso com marca d' água

Country Status (7)

Country Link
US (1) US8281137B2 (pt)
EP (2) EP2081187A1 (pt)
JP (1) JP5232668B2 (pt)
CN (1) CN101494053B (pt)
AT (1) ATE549713T1 (pt)
BR (1) BRPI0900063A2 (pt)
RU (1) RU2482553C2 (pt)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2083418A1 (en) * 2008-01-24 2009-07-29 Deutsche Thomson OHG Method and Apparatus for determining and using the sampling frequency for decoding watermark information embedded in a received signal sampled with an original sampling frequency at encoder side
EP2387033A1 (en) 2010-05-11 2011-11-16 Thomson Licensing Method and apparatus for detecting which one of symbols of watermark data is embedded in a received signal
US9269363B2 (en) 2012-11-02 2016-02-23 Dolby Laboratories Licensing Corporation Audio data hiding based on perceptual masking and detection based on code multiplexing
EP2787504A1 (en) 2013-04-02 2014-10-08 Thomson Licensing Method and Apparatus for determining watermark symbols in a received audio signal that can contain echoes, reverberation and/or noise
EP2899987A1 (en) * 2014-01-22 2015-07-29 Thomson Licensing Synchronising a reproduction of audio or audio and video content
EP2930717A1 (en) 2014-04-07 2015-10-14 Thomson Licensing Method and apparatus for determining in a 2nd screen device whether the presentation of watermarked audio content received via an acoustic path from a 1st screen device has been stopped
CN106601261A (zh) * 2015-10-15 2017-04-26 中国电信股份有限公司 基于数字水印的回声抑制方法和系统
RU2767183C1 (ru) * 2021-08-27 2022-03-16 Федеральное государственное автономное образовательное учреждение высшего образования «Санкт-Петербургский государственный университет аэрокосмического приборостроения» Способ автоматического обнаружения узкополосных сигналов
CN116489644B (zh) * 2023-03-10 2025-11-28 苏州大学 一种基于伪随机水印叠加的认证系统及方法

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US7171016B1 (en) * 1993-11-18 2007-01-30 Digimarc Corporation Method for monitoring internet dissemination of image, video and/or audio files
US6584138B1 (en) 1996-03-07 2003-06-24 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Coding process for inserting an inaudible data signal into an audio signal, decoding process, coder and decoder
US6061793A (en) 1996-08-30 2000-05-09 Regents Of The University Of Minnesota Method and apparatus for embedding data, including watermarks, in human perceptible sounds
JP3691415B2 (ja) * 2000-09-01 2005-09-07 松下電器産業株式会社 再生装置、再生装置特定装置及びそれらの方法
RU2289215C2 (ru) * 2001-04-12 2006-12-10 Конинклейке Филипс Электроникс Н.В. Внедрение водяного знака
GB2376826A (en) * 2001-06-19 2002-12-24 Sony Uk Ltd Detecting data by accumulating pixel values in several versions of a datablock
GB2377109B (en) * 2001-06-28 2003-12-03 Motorola Inc Video/image communication with watermarking
EP1542227A1 (en) * 2003-12-11 2005-06-15 Deutsche Thomson-Brandt Gmbh Method and apparatus for transmitting watermark data bits using a spread spectrum, and for regaining watermark data bits embedded in a spread spectrum
EP1542226A1 (en) * 2003-12-11 2005-06-15 Deutsche Thomson-Brandt Gmbh Method and apparatus for transmitting watermark data bits using a spread spectrum, and for regaining watermark data bits embedded in a spread spectrum
CN1306453C (zh) * 2003-12-30 2007-03-21 中国人民解放军第一军医大学 离散拉当变换域中抗冲击性的图像水印嵌入与检测方法
GB0403331D0 (en) 2004-02-14 2004-03-17 Koninkl Philips Electronics Nv Watermark detection
EP1729285A1 (en) * 2005-06-02 2006-12-06 Deutsche Thomson-Brandt Gmbh Method and apparatus for watermarking an audio or video signal with watermark data using a spread spectrum
WO2007006623A1 (en) * 2005-07-11 2007-01-18 Deutsche Thomson-Brandt Gmbh Method and apparatus for detecting correlation between a received signal and a candidate spreading sequence
EP1764780A1 (en) 2005-09-16 2007-03-21 Deutsche Thomson-Brandt Gmbh Blind watermarking of audio signals by using phase modifications
CN100547609C (zh) * 2005-11-22 2009-10-07 北京华旗数码影像技术研究院有限责任公司 一种比特流鲁棒数字图像水印嵌入和检测方法及装置
CN101038771A (zh) * 2006-03-18 2007-09-19 辽宁师范大学 用于音乐作品版权保护的数字水印新方法
US8315835B2 (en) 2007-06-14 2012-11-20 Thomson Licensing Method and apparatus for setting a detection threshold given a desired false probability

Also Published As

Publication number Publication date
US20090187765A1 (en) 2009-07-23
JP5232668B2 (ja) 2013-07-10
EP2081188B1 (en) 2012-03-14
RU2482553C2 (ru) 2013-05-20
CN101494053A (zh) 2009-07-29
JP2009175737A (ja) 2009-08-06
EP2081188A1 (en) 2009-07-22
RU2009101724A (ru) 2010-07-27
US8281137B2 (en) 2012-10-02
EP2081187A1 (en) 2009-07-22
CN101494053B (zh) 2012-10-24
ATE549713T1 (de) 2012-03-15

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Legal Events

Date Code Title Description
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]

Free format text: REFERENTE A 10A ANUIDADE.

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 2497 DE 13-11-2018 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.