CA2486448A1 - Structuration en couches temporelle, par resolution codee et en filigrane numerique des televisions de pointe - Google Patents
Structuration en couches temporelle, par resolution codee et en filigrane numerique des televisions de pointe Download PDFInfo
- Publication number
- CA2486448A1 CA2486448A1 CA002486448A CA2486448A CA2486448A1 CA 2486448 A1 CA2486448 A1 CA 2486448A1 CA 002486448 A CA002486448 A CA 002486448A CA 2486448 A CA2486448 A CA 2486448A CA 2486448 A1 CA2486448 A1 CA 2486448A1
- Authority
- CA
- Canada
- Prior art keywords
- unit
- units
- watermark
- data stream
- watermarking technique
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 230000002123 temporal effect Effects 0.000 title abstract 2
- 238000000034 method Methods 0.000 claims abstract 77
- 230000006835 compression Effects 0.000 claims abstract 7
- 238000007906 compression Methods 0.000 claims abstract 7
- 238000004590 computer program Methods 0.000 claims 33
- 230000006837 decompression Effects 0.000 claims 3
- 239000013598 vector Substances 0.000 claims 3
- 238000000354 decomposition reaction Methods 0.000 abstract 1
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
-
- 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
- G06T1/0085—Time domain based watermarking, e.g. watermarks spread over several images
-
- 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
- H04N19/467—Embedding additional information in the video signal during the compression process characterised by the embedded information being invisible, e.g. watermarking
-
- 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
-
- 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
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
- H04N21/25808—Management of client data
- H04N21/25841—Management of client data involving the geographical location of the client
-
- 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
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/26613—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing keys in general
-
- 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
- G06T2201/0052—Embedding of the watermark in the frequency 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
- G06T2201/0053—Embedding of the watermark in the coding stream, possibly without decoding; Embedding of the watermark in the compressed domain
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Graphics (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Television Systems (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
L'invention concerne un procédé et un appareil de compression d'image au moyen d'une structuration en couches temporelle et par résolution de trames d'images comprimées, offrant des capacités de codage et de filigrane numérique (1404). Plus particulièrement, la compression en couches permet une forme de décomposition modularisée d'une image qui supporte les techniques de codage et de filigrane numérique (1404) flexibles. La compression en couches permet l'utilisation de la couche de base et de différents composants internes de la couche de base afin de coder un train de données de film en couches comprimées. L'utilisation d'un tel sous-ensemble en couches de bits permet de rendre tout le train d'images méconnaissable grâce au seul codage d'une fraction des bits du train entier. Plusieurs algorithmes et forces de codage peuvent être appliqués à différentes parties du train en couches, y compris des couches de renforcement. Des algorithmes ou des clés de codage peuvent être changés à chaque contour de tranche afin de fournir un meilleur entrelacement du codage et du train d'images. Le filigrane numérique (1404) repère les copies perdues ou volées pour les ramener vers la source de manière que la nature du vol puisse être déterminée et que les personnes impliquées dans le vol soient identifiées. Le filigrane numérique (1404) utilise de préférence des bits de poids faible dans certains coefficients et certains cadres d'un train de films comprimés en couches afin de fournir une identification fiable tout en étant invisible ou presque à l'oeil. Une couche de renforcement peut également avoir sa propre structure de filigrane numérique (1404) d'identification unique.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2002/018884 WO2004012455A1 (fr) | 2002-06-13 | 2002-06-13 | Structuration en couches temporelle, par resolution codee et en filigrane numerique des televisions de pointe |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2486448A1 true CA2486448A1 (fr) | 2004-02-05 |
CA2486448C CA2486448C (fr) | 2012-01-24 |
Family
ID=31185972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2486448A Expired - Fee Related CA2486448C (fr) | 2002-06-13 | 2002-06-13 | Structuration en couches temporelle, par resolution codee et en filigrane numerique des televisions de pointe |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1512286A4 (fr) |
JP (1) | JP2005530462A (fr) |
AU (1) | AU2002318344B2 (fr) |
CA (1) | CA2486448C (fr) |
WO (1) | WO2004012455A1 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2843517B1 (fr) * | 2002-08-06 | 2005-02-11 | Medialive | Dispositif pour le brouillage de contenus multimedias et audiovisuels de type mpeg-4 |
EP1855436A1 (fr) * | 2006-05-12 | 2007-11-14 | Deutsche Thomson-Brandt Gmbh | Procédé et dispositif de chiffrage d'un signal audio codé |
JP4902274B2 (ja) * | 2006-06-23 | 2012-03-21 | 日本放送協会 | 暗号化コンテンツ作成装置およびそのプログラム、ならびに、コンテンツ復号化装置およびそのプログラム |
JP4932452B2 (ja) * | 2006-11-24 | 2012-05-16 | 三菱電機株式会社 | データ変換装置及びデータ変換方法及びプログラム |
EP2731337B1 (fr) | 2012-10-17 | 2017-07-12 | Dolby Laboratories Licensing Corporation | Système et procédé de transmissions de trames de vidéo |
JP6605789B2 (ja) | 2013-06-18 | 2019-11-13 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ | 送信方法、受信方法、送信装置、および、受信装置 |
EP2960854A1 (fr) | 2014-06-27 | 2015-12-30 | Thomson Licensing | Procédé et dispositif pour déterminer un ensemble d'éléments modifiables dans un groupe d'images |
US9906821B1 (en) | 2016-08-23 | 2018-02-27 | Cisco Technology, Inc. | Packet reordering system |
CN113630606B (zh) * | 2020-05-07 | 2024-04-19 | 百度在线网络技术(北京)有限公司 | 视频水印处理方法、装置、电子设备及存储介质 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996020563A1 (fr) * | 1994-12-27 | 1996-07-04 | Kabushiki Kaisha Toshiba | Emetteur, recepteur, systeme de traitement de communications qui les integre, et systeme de telediffusion numerique |
US5852565A (en) * | 1996-01-30 | 1998-12-22 | Demografx | Temporal and resolution layering in advanced television |
US6069914A (en) * | 1996-09-19 | 2000-05-30 | Nec Research Institute, Inc. | Watermarking of image data using MPEG/JPEG coefficients |
US6332194B1 (en) * | 1998-06-05 | 2001-12-18 | Signafy, Inc. | Method for data preparation and watermark insertion |
SE513356C2 (sv) * | 1998-11-20 | 2000-08-28 | Ericsson Telefon Ab L M | Förfarande och anordning för kryptering av bilder |
US6182214B1 (en) * | 1999-01-08 | 2001-01-30 | Bay Networks, Inc. | Exchanging a secret over an unreliable network |
EP1189432A3 (fr) * | 2000-08-14 | 2004-10-20 | Matsushita Electric Industrial Co., Ltd. | Un schéma hiérarchique d'encryption pour la distribution sûre de contenu prédéterminé |
-
2002
- 2002-06-13 AU AU2002318344A patent/AU2002318344B2/en not_active Ceased
- 2002-06-13 EP EP02747897A patent/EP1512286A4/fr not_active Withdrawn
- 2002-06-13 CA CA2486448A patent/CA2486448C/fr not_active Expired - Fee Related
- 2002-06-13 WO PCT/US2002/018884 patent/WO2004012455A1/fr active Application Filing
- 2002-06-13 JP JP2004524453A patent/JP2005530462A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP1512286A4 (fr) | 2009-05-13 |
EP1512286A1 (fr) | 2005-03-09 |
AU2002318344A1 (en) | 2004-02-16 |
WO2004012455A1 (fr) | 2004-02-05 |
JP2005530462A (ja) | 2005-10-06 |
AU2002318344B2 (en) | 2008-01-31 |
CA2486448C (fr) | 2012-01-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9893888B2 (en) | Utilizing data reduction in steganographic and cryptographic systems | |
US7123718B1 (en) | Utilizing data reduction in stegnographic and cryptographic systems | |
US20020150239A1 (en) | Method for personalized encryption in an un-trusted environment | |
US7376243B2 (en) | Apparatus and method for watermarking a digital image | |
JP2002141898A (ja) | 多重暗号化キーをデータストリームに同期させる暗号化装置および方法 | |
US7844052B2 (en) | Encoding and detecting apparatus | |
US20020062445A1 (en) | System, method and apparatus for distributing digital contents, information processing apparatus and digital content recording medium | |
CN101465724A (zh) | 一种加密的Huffman编码方法,及其解码方法 | |
JP2004159309A (ja) | 電子透かし方法および装置、並びに透かし復号化方法および装置 | |
KR20190074189A (ko) | 수정된 이미지들에서 원본 이미지들 복원하기 위한 방법 및 장치 | |
WO2012016883A1 (fr) | Procédé et système de protection par tatouage numérique pour lutter contre l'utilisation non autorisée de données vidéo ou audio originales qui doivent être présentées | |
CA2486448A1 (fr) | Structuration en couches temporelle, par resolution codee et en filigrane numerique des televisions de pointe | |
Chen et al. | Error-free separable reversible data hiding in encrypted images using linear regression and prediction error map | |
Tsai et al. | Using set partitioning in hierarchical trees to authenticate digital images | |
CN112035847A (zh) | 一种图像加密、解密方法及装置、电子设备和存储介质 | |
CN101207793A (zh) | 实现加密和水印互操作的多媒体数据内容和版权保护方法 | |
Neetha et al. | An efficient image encryption reversible data hiding technique to improve payload and high security in cloud platforms | |
JP3553733B2 (ja) | 画像編集方法およびシステム | |
JP2004120141A (ja) | アクセス制御システム | |
CN114493968A (zh) | 基于最高有效位替换和最低有效位压缩的数据隐藏方法 | |
JP2006039931A (ja) | コンテンツ配信システム、コンテンツ配信方法、コンテンツ配信サーバ、ユーザ端末装置およびプログラム | |
JP2002344730A (ja) | デジタル画像への情報埋め込み装置 | |
JP2001175171A (ja) | ストリーム伝送方法、ストリーム伝送装置、及び伝送媒体 | |
Harish et al. | Reversible data hiding in encrypted images by reserving room before encryption | |
KR20060058606A (ko) | 워터마킹과 선택 암호화 방식을 이용한 멀티미디어 콘텐츠코딩 장치 및 워터마킹과 선택 해독 방식을 이용한멀티미디어 콘텐츠 디코딩 장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20200831 |