BRPI0700464A - método para processar uma sequência de vìdeo e aparelho que implementa o dito método - Google Patents

método para processar uma sequência de vìdeo e aparelho que implementa o dito método

Info

Publication number
BRPI0700464A
BRPI0700464A BRPI0700464-8A BRPI0700464A BRPI0700464A BR PI0700464 A BRPI0700464 A BR PI0700464A BR PI0700464 A BRPI0700464 A BR PI0700464A BR PI0700464 A BRPI0700464 A BR PI0700464A
Authority
BR
Brazil
Prior art keywords
shutter speed
camcorder
video
modulation
brightness
Prior art date
Application number
BRPI0700464-8A
Other languages
English (en)
Inventor
Pascal Bourdon
Laurent Blonde
Philippe Le Roy
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 BRPI0700464A publication Critical patent/BRPI0700464A/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
    • 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
    • H04N2005/91392—Television signal processing therefor for scrambling ; for copy protection using means for preventing making copies of projected video images

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Studio Devices (AREA)
  • Projection Apparatus (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

MéTODO PARA PROCESSAR UMA SEQüêNCIA DE VìDEO E APARELHO QUE IMPLEMENTA O DITO MéTODO A presente invenção está no campo de proteção de Conteúdo, mais particularmente em locais de cinema onde a aquisição por fumadoras de vídeo, seguida pela distribuição ilegal imediata, cria perdas consideráveis de receita para os proprietários do conteúdo. Sabe-se que os sistemas antifilmadora de vídeo que utilizam uma modulação de cor podem ser contornados pelo uso de baixa velocidade do obturador na filmadora de vídeo. Atualmente, a velocidade do obturador é determinada de forma automática pela filmadora de vídeo em função da fonte de vídeo filmada. Em configurações automáticas, a velocidade do obturador se adapta automaticamente à detecção de movimento ou cintilação, a qual só considera variações de brilho. A invenção proposta sugere uma modulação dupla de cor/brilho para superar o ajuste automático da velocidade do obturador. Por exemplo, realiza-se uma modulação de cor a 50/60 Hz e é adicionada uma modulação de brilho a uma freqüência superior 100/120 Hz para forçar a filmadora de vídeo aerar em uma alta velocidade do obturador.
BRPI0700464-8A 2006-03-01 2007-02-26 método para processar uma sequência de vìdeo e aparelho que implementa o dito método BRPI0700464A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06290351A EP1830582A1 (en) 2006-03-01 2006-03-01 Method for processing a video sequence for preventing unauthorized recording and apparatus implementing said method

Publications (1)

Publication Number Publication Date
BRPI0700464A true BRPI0700464A (pt) 2007-11-06

Family

ID=36499406

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0700464-8A BRPI0700464A (pt) 2006-03-01 2007-02-26 método para processar uma sequência de vìdeo e aparelho que implementa o dito método

Country Status (6)

Country Link
US (1) US8130258B2 (pt)
EP (2) EP1830582A1 (pt)
JP (1) JP2007235965A (pt)
CN (1) CN101031090A (pt)
BR (1) BRPI0700464A (pt)
DE (1) DE602007000157D1 (pt)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7667740B2 (en) * 2006-07-28 2010-02-23 Hewlett-Packard Development Company, L.P. Elimination of modulated light effects in rolling shutter CMOS sensor images
EP1931143A1 (en) * 2006-12-06 2008-06-11 Thomson Licensing Method and device for processing a sequence of source pictures
WO2009139746A1 (en) * 2008-05-15 2009-11-19 Thomson Licensing Method, apparatus and system for anti-piracy protection in digital cinema
EP2133839A1 (fr) * 2008-06-12 2009-12-16 Thomson Licensing Procédé de traitement d'images pour lutter contre la copie
WO2009157905A1 (en) * 2008-06-27 2009-12-30 Thomson Licensing Method and system for efficient transmission of anti-camcorder video
EP2546832A1 (en) * 2011-07-11 2013-01-16 Thomson Licensing Forensic method for classifying unauthorised digital movie-projection recaptures
CN107395977B (zh) * 2012-12-27 2019-12-17 松下电器（美国）知识产权公司 信息通信方法
US20140268274A1 (en) * 2013-03-15 2014-09-18 Pixtronix, Inc. Display Apparatus Incorporating an Elevated Aperture Layer and Methods of Manufacturing the Same
TWI498001B (zh) * 2013-07-05 2015-08-21 Aten Int Co Ltd 分散式影音控制系統及分散式影音控制方法
WO2016072130A1 (ja) * 2014-11-06 2016-05-12 ソニー株式会社 情報処理装置
CN108234977B (zh) * 2018-01-12 2021-03-09 京东方科技集团股份有限公司 一种视频播放方法及显示系统

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3707259B2 (ja) * 1998-09-10 2005-10-19 コニカミノルタフォトイメージング株式会社 画像合成方法及びこの方法を用いた画像合成装置
US7043019B2 (en) 2001-02-28 2006-05-09 Eastman Kodak Company Copy protection for digital motion picture image data
JP3674593B2 (ja) * 2001-09-18 2005-07-20 ソニー株式会社 強度変調方法及びシステム並びに光量変調装置
US7030956B2 (en) * 2002-03-11 2006-04-18 Sony Corporation Optical intensity modulation method and system, and optical state modulation apparatus
JP3674606B2 (ja) * 2002-06-11 2005-07-20 ソニー株式会社 光量変調装置、表示システム及び光量変調方法
JP3901072B2 (ja) * 2002-10-23 2007-04-04 ソニー株式会社 映像表示装置、映像表示方法
JP2004266345A (ja) * 2003-02-05 2004-09-24 Sony Corp 映像表示方法、映像表示処理装置、映像表示システム
US7221759B2 (en) * 2003-03-27 2007-05-22 Eastman Kodak Company Projector with enhanced security camcorder defeat
FR2859857A1 (fr) * 2003-09-17 2005-03-18 Thomson Licensing Sa Procedes de traitement et d'affichage d'images et appareil d 'affichage utilisant les procedes
JP4612845B2 (ja) * 2005-01-27 2011-01-12 キヤノン株式会社 画像処理装置およびその方法
JP4630730B2 (ja) * 2005-05-27 2011-02-09 キヤノン株式会社 撮像装置、カメラ及び撮像方法

Also Published As

Publication number Publication date
JP2007235965A (ja) 2007-09-13
EP1830583B1 (en) 2008-10-08
US20070212024A1 (en) 2007-09-13
US8130258B2 (en) 2012-03-06
CN101031090A (zh) 2007-09-05
DE602007000157D1 (de) 2008-11-20
EP1830582A1 (en) 2007-09-05
EP1830583A1 (en) 2007-09-05

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Legal Events

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

Free format text: REFERENTE A 7A 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: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2257 DE 08/04/2014.