MA32377B1 - Procede et systeme permettant de crypter visuellement les objets mobiles au sein d'un flux video compresse - Google Patents

Procede et systeme permettant de crypter visuellement les objets mobiles au sein d'un flux video compresse

Info

Publication number
MA32377B1
MA32377B1 MA33393A MA33393A MA32377B1 MA 32377 B1 MA32377 B1 MA 32377B1 MA 33393 A MA33393 A MA 33393A MA 33393 A MA33393 A MA 33393A MA 32377 B1 MA32377 B1 MA 32377B1
Authority
MA
Morocco
Prior art keywords
type
objects
stream
protected
portions
Prior art date
Application number
MA33393A
Other languages
Arabic (ar)
English (en)
Inventor
Barz Cedric Le
Marc Leny
Erwann Renan
Original Assignee
Thales Sa
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 Thales Sa filed Critical Thales Sa
Publication of MA32377B1 publication Critical patent/MA32377B1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
    • 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
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • 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
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/129—Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
    • 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
    • H04N19/164—Feedback from the receiver or from the transmission channel
    • 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
    • H04N19/17—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 an image region, e.g. an object
    • 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
    • H04N19/20—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video object coding
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
    • H04N21/23476—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption by partially encrypting, e.g. encrypting the ending portion of a movie
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/4728—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for selecting a Region Of Interest [ROI], e.g. for requesting a higher resolution version of a selected region
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/845—Structuring of content, e.g. decomposing content into time segments
    • H04N21/8451—Structuring of content, e.g. decomposing content into time segments using Advanced Video Coding [AVC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/845—Structuring of content, e.g. decomposing content into time segments
    • H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/30—Compression, e.g. Merkle-Damgard construction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/34—Encoding or coding, e.g. Huffman coding or error correction

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Databases & Information Systems (AREA)
  • Human Computer Interaction (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

Procédé de protection d'au moins une partie d'un flux vidéo ou d'une séquence vidéo compressée contre une violation des informations contenues dans ledit flux, ledit flux pouvant être décomposé en au moins un premier type d'objets et un deuxième type d'objets, le procédé s'appliquant sur une sélection d'images contenues dans ladite séquence vidéo caractérisé en ce qu'il comporte au moins les étapes suivantes : analyser la séquence vidéo dans le domaine compressé afin de définir pour une image donnée n au moins un premier type d'objets à protéger par chiffrement et un deuxième type d'objets, (1, 2), le module d'analyse qui identifie les portions de l'image appartenant aux premier type d'objets à protéger envoie les vecteurs d'estimations de mouvements et les coefficients transformés à l'étape de cryptage, déterminer, selon le découpage en portions ou en groupe de portions de l'image n existant (3b, 3a), celles correspondant respectivement au premier type d'objets à protéger (3b) et aux autres types (3a), chiffrer au moins une partie du premier type d'objets (5a), reconstituer à partir des sorties des étapes précédentes un flux composé d'au moins un premier type d'objets chiffrés et des autres types d'objets, auquel est ajouté des informations indiquant quels sont les objets qui ont été cryptés. Système permettant la mise en suvre du procédé
MA33393A 2008-06-03 2010-12-03 Procede et systeme permettant de crypter visuellement les objets mobiles au sein d'un flux video compresse MA32377B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0803063A FR2932046B1 (fr) 2008-06-03 2008-06-03 Procede et systeme permettant de crypter visuellement les objets mobiles au sein d'un flux video compresse
PCT/EP2009/056830 WO2009147183A1 (fr) 2008-06-03 2009-06-03 Procede et systeme permettant de crypter visuellement les objets mobiles au sein d'un flux video compresse

Publications (1)

Publication Number Publication Date
MA32377B1 true MA32377B1 (fr) 2011-06-01

Family

ID=40227830

Family Applications (1)

Application Number Title Priority Date Filing Date
MA33393A MA32377B1 (fr) 2008-06-03 2010-12-03 Procede et systeme permettant de crypter visuellement les objets mobiles au sein d'un flux video compresse

Country Status (7)

Country Link
US (1) US20110075842A1 (fr)
EP (1) EP2297951A1 (fr)
BR (1) BRPI0913390A2 (fr)
FR (1) FR2932046B1 (fr)
MA (1) MA32377B1 (fr)
MX (1) MX2010013317A (fr)
WO (1) WO2009147183A1 (fr)

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US7627897B2 (en) * 2001-01-03 2009-12-01 Portauthority Technologies Inc. Method and apparatus for a reactive defense against illegal distribution of multimedia content in file sharing networks
FR2972886B1 (fr) * 2011-03-17 2013-03-15 Thales Sa Procede de compression/decompression de flux video partiellement masques, codeur et decodeur mettant en oeuvre le procede
RU2018135747A (ru) * 2013-07-22 2018-11-19 Сони Корпорейшн Устройство и способ обработки информации
US10182038B2 (en) * 2013-07-29 2019-01-15 Mobitv, Inc. Efficient common storage of partially encrypted content
EP2874396A1 (fr) * 2013-11-15 2015-05-20 Everseen Ltd. Procédé et système pour sécuriser un flux de données
AU2015373961A1 (en) * 2014-12-30 2017-07-20 Morphotrust Usa, Llc Video triggered analyses
CN106210612A (zh) * 2015-04-30 2016-12-07 杭州海康威视数字技术股份有限公司 视频编码方法、解码方法及其装置
KR102077239B1 (ko) 2015-07-02 2020-02-13 삼성전자주식회사 멀티미디어 데이터를 암호화하는 방법 및 장치, 복호화하는 방법 및 장치
KR102410539B1 (ko) * 2016-01-12 2022-06-16 한화테크윈 주식회사 압축된 비디오로부터 프라이버시 영역을 암호화하는 장치 및 방법
CN109214971B (zh) * 2018-08-08 2019-05-28 山东科技大学 一种灰度图像可视加密方法
US11159798B2 (en) * 2018-08-21 2021-10-26 International Business Machines Corporation Video compression using cognitive semantics object analysis
CN110446105B (zh) * 2019-09-20 2021-11-16 网易（杭州）网络有限公司 视频加密、解密的方法及装置
CN114143410B (zh) * 2021-11-16 2023-09-01 国网江苏省电力有限公司信息通信分公司 一种基于物联网的电力监控图像加密传输方法
CN115866299B (zh) * 2022-11-22 2024-09-24 航天信息股份有限公司 视频防篡改方法、装置、电子设备及存储介质
DE102023131053A1 (de) * 2023-11-09 2025-05-15 Valeo Schalter Und Sensoren Gmbh Anonymisieren von Bildbereichen von Einzelbildern in einem kodierten Videodatenstrom

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6505299B1 (en) * 1999-03-01 2003-01-07 Sharp Laboratories Of America, Inc. Digital image scrambling for image coding systems
US7295673B2 (en) * 2002-10-23 2007-11-13 Divx, Inc. Method and system for securing compressed digital video
GB0315412D0 (en) * 2003-07-02 2003-08-06 Queen Mary & Westfield College Optical flow estimation method
FR2879878B1 (fr) * 2004-12-22 2007-05-25 Thales Sa Procede de chiffrement selectif compatible pour flux video
EP2164056A2 (fr) * 2004-12-27 2010-03-17 Emitall Surveillance S.A. Brouillage efficace des régions d'intérêt dans une image ou vidéo pour protéger la confidentialité
CA2628203A1 (fr) * 2005-11-04 2007-05-10 Emitall Surveillance S.A. Brouillage video de domaine de transformee fonde sur une zone

Also Published As

Publication number Publication date
BRPI0913390A2 (pt) 2015-11-24
EP2297951A1 (fr) 2011-03-23
MX2010013317A (es) 2011-02-24
US20110075842A1 (en) 2011-03-31
WO2009147183A1 (fr) 2009-12-10
FR2932046A1 (fr) 2009-12-04
FR2932046B1 (fr) 2010-08-20

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