MA32378B1 - PROCEDE ET SYSTEME PERMETTANT DE PROTEGER DèS LA COMPRESSION LA CONFIDENTIALITE DES DONNEES D'UN FLUX VIDEO LORS DE SA TRANSMISSION - Google Patents

PROCEDE ET SYSTEME PERMETTANT DE PROTEGER DèS LA COMPRESSION LA CONFIDENTIALITE DES DONNEES D'UN FLUX VIDEO LORS DE SA TRANSMISSION

Info

Publication number
MA32378B1
MA32378B1 MA33394A MA33394A MA32378B1 MA 32378 B1 MA32378 B1 MA 32378B1 MA 33394 A MA33394 A MA 33394A MA 33394 A MA33394 A MA 33394A MA 32378 B1 MA32378 B1 MA 32378B1
Authority
MA
Morocco
Prior art keywords
image
objects
video stream
group
confidentiality
Prior art date
Application number
MA33394A
Other languages
Arabic (ar)
English (en)
Inventor
Barz Cédric 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 MA32378B1 publication Critical patent/MA32378B1/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
    • H04N19/10—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
    • H04N19/174—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 the region being a slice, e.g. a line of blocks or a group of blocks
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • 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]
    • H04N21/80—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
    • 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
    • H04L2209/60—Digital content management, e.g. content distribution
    • H04L2209/601—Broadcast encryption

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

Procédé de cryptage visuel d'au moins une partie d'un flux vidéo ou d'une séquence vidéo au moins partiellement compressé, ledit flux pouvant être décomposé en un premier type d'objets et un deuxième type d'objets, le procédé s'appliquant sur chacune des images contenues dans une séquence vidéo caractérisé en ce qu'il comporte au moins les étapes suivantes : ¸ analyser la séquence dans le domaine compressé afin de définir pour une image donnée n au moins un premier groupe d'objets à protéger par cryptage visuel et un deuxième groupe d'objets, (2, 3) les coefficients transformés et les vecteurs d'estimation de mouvement étant directement transmis à l'étape d) de compression, ¸ prédire à partir des données issues de l'analyse à l'étape précédente de l'image compressée n, la position des objets pour une image suivante n+1, (4a) ¸ déterminer le découpage en portions ou en groupe de portions de l'image n+1, (4b) ¸ compresser (8b) le premier groupe d'objets de l'image n+1 et en chiffrer au moins une partie (8a), ¸ transmettre les autres types de groupes d'objets pour l'image n+1 à une étape de compression (6).
MA33394A 2008-06-03 2010-12-03 PROCEDE ET SYSTEME PERMETTANT DE PROTEGER DèS LA COMPRESSION LA CONFIDENTIALITE DES DONNEES D'UN FLUX VIDEO LORS DE SA TRANSMISSION MA32378B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0803061A FR2932045B1 (fr) 2008-06-03 2008-06-03 Procede et systeme permettant de proteger des la compression la confidentialite des donnees d'un flux video lors de sa transmission
PCT/EP2009/056831 WO2009147184A1 (fr) 2008-06-03 2009-06-03 Procede et systeme permettant de proteger des la compression la confidentialite des donnees d'un flux video lors de sa transmission

Publications (1)

Publication Number Publication Date
MA32378B1 true MA32378B1 (fr) 2011-06-01

Family

ID=40193684

Family Applications (1)

Application Number Title Priority Date Filing Date
MA33394A MA32378B1 (fr) 2008-06-03 2010-12-03 PROCEDE ET SYSTEME PERMETTANT DE PROTEGER DèS LA COMPRESSION LA CONFIDENTIALITE DES DONNEES D'UN FLUX VIDEO LORS DE SA TRANSMISSION

Country Status (7)

Country Link
US (1) US8447034B2 (fr)
EP (1) EP2297952A1 (fr)
BR (1) BRPI0913388A2 (fr)
FR (1) FR2932045B1 (fr)
MA (1) MA32378B1 (fr)
MX (1) MX2010013318A (fr)
WO (1) WO2009147184A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8762348B2 (en) 2009-06-09 2014-06-24 Emc Corporation Segment deduplication system with compression of segments
US8731190B2 (en) * 2009-06-09 2014-05-20 Emc Corporation Segment deduplication system with encryption and compression of segments
US9008308B2 (en) * 2012-02-08 2015-04-14 Vixs Systems, Inc Container agnostic decryption device and methods for use therewith
WO2014062934A1 (fr) * 2012-10-19 2014-04-24 Visa International Service Association Procédés de diffusion numérique mettant en œuvre des réseaux maillés et des ondelettes sécurisés
RU2018135747A (ru) * 2013-07-22 2018-11-19 Сони Корпорейшн Устройство и способ обработки информации
DE102013226802A1 (de) * 2013-12-20 2015-06-25 Siemens Aktiengesellschaft Schutz von Privatsphäre in einem Videostrom mittels einer redundanten Slice
KR101564421B1 (ko) * 2014-05-02 2015-10-29 삼성전자주식회사 동영상 처리 장치 및 방법
EP3340623B1 (fr) 2016-12-20 2023-04-12 Axis AB Procédé de codage d'image comprenant un masque de confidentialité
EP3340624B1 (fr) * 2016-12-20 2019-07-03 Axis AB Codage d'une image de confidentialité masquée
CN108965882B (zh) * 2018-06-12 2020-08-14 浙江大华技术股份有限公司 一种编解码方法及装置
CN108848382B (zh) * 2018-06-12 2020-04-03 浙江大华技术股份有限公司 一种编解码方法及装置
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
CN111372023B (zh) * 2018-12-25 2023-04-07 杭州海康威视数字技术股份有限公司 一种码流加密、解密方法及装置
CN115643001B (zh) * 2022-12-25 2023-03-14 武汉恩为科技有限公司 一种基于位平面的图像加密方法、系统及可读存储介质

Family Cites Families (5)

* 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
GB0315412D0 (en) * 2003-07-02 2003-08-06 Queen Mary & Westfield College Optical flow estimation method
US20050207569A1 (en) * 2004-03-16 2005-09-22 Exavio, Inc Methods and apparatus for preparing data for encrypted transmission
FR2879878B1 (fr) * 2004-12-22 2007-05-25 Thales Sa Procede de chiffrement selectif compatible pour flux video
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
BRPI0913388A2 (pt) 2015-11-24
MX2010013318A (es) 2011-02-24
US20110194688A1 (en) 2011-08-11
WO2009147184A1 (fr) 2009-12-10
FR2932045A1 (fr) 2009-12-04
US8447034B2 (en) 2013-05-21
FR2932045B1 (fr) 2010-08-20
EP2297952A1 (fr) 2011-03-23

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