JP2016111511A - 管理装置及び画像処理システム - Google Patents
管理装置及び画像処理システム Download PDFInfo
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- 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
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
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- 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, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
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- 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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/085—Secret sharing or secret splitting, e.g. threshold schemes
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- 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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0894—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
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- 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
- H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
- H04N19/88—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving rearrangement of data among different coding units, e.g. shuffling, interleaving, scrambling or permutation of pixel data or permutation of transform coefficient data among different blocks
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- 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, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234327—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by decomposing into layers, e.g. base layer and one or more enhancement layers
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- 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, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/23439—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements for generating different versions
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- 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, manipulating MPEG-4 scene graphs
- H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption
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- 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
- H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
-
- 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6125—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via Internet
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- 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6156—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network
- H04N21/6175—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network involving transmission via Internet
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- 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
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
-
- 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
- H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Graphics (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Television Signal Processing For Recording (AREA)
- Storage Device Security (AREA)
Abstract
Description
実施の形態1では、可逆方式の秘密分散処理を用いる場合について説明する。
実施の形態2では、非可逆方式の秘密分散処理を用いる場合について説明する。なお、本実施の形態の画像処理システムの構成は、実施の形態1で用いた図1のものと同一である。
20 映像・コンテンツ蓄積部
21、21a 映像管理サーバ
22 ストレージ
30 映像・コンテンツ閲覧部
33、33a 受信装置
101、301 データ受信部
102 記憶部
103、302 制御部
104 解像度変換部
105 画像符号化部
106 秘密分散処理部
107 データ結合部
108、306 データ送信部
303 データ分離部
304 秘密分散復元部
305 画像復号部
501 差分画像生成部
701 差分画像合成部
Claims (10)
- 入力画像データを、互いに解像度が異なるN種類(Nは複数)の画像データに変換する解像度変換部と、
前記複数の画像データのそれぞれをn個(nはN+1以上の整数であって、全ての画像データにおいて同一の値)の分散データに分割し、その中のk個(kは2以上n以下の整数であって、画像データ毎に互いに異なる値)を用いると元の画像データに復元できるように秘密分散処理を行う秘密分散処理部と、
各解像度から重複しないように1つずつ選択された分散データを結合してn個の結合データを生成し、各結合データを互いに異なるストレージに保存させるデータ結合部と、
を具備する管理装置。 - 前記入力画像データの解像度に基づいて、変換後の解像度を選択し、前記解像度変換部に変換後の解像度を指示する制御部を更に具備する、
請求項1に記載の管理装置。 - 前記解像度変換部から出力された各解像度の画像データに対して圧縮符号化処理を行う画像符号化部を更に具備し、
前記秘密分散処理部は、圧縮符号化処理された画像データに対して秘密分散処理を行う、
請求項1または請求項2に記載の管理装置。 - 前記解像度変換部は、前記複数の画像データの中の一つとして前記入力画像データをそのまま出力する、
請求項1から請求項3のいずれか一項に記載の管理装置。 - 前記秘密分散処理部は、解像度が低い画像データ程、kが小さくなるように秘密分散処理を行う、
請求項1から請求項4のいずれか一項に記載の管理装置。 - 前記解像度変換部は、前記入力画像データのサムネールを生成し、
前記データ結合部は、前記各結合データに前記サムネールを含める、
請求項1から請求項5のいずれか一項に記載の管理装置。 - ユーザからの要求に応じて、j個(jは2以上n以下の整数)の結合データを前記ユーザ宛に送信するデータ送信部を更に具備する、
請求項1から請求項6のいずれか一項に記載の管理装置。 - 前記データ送信部は、前記要求を出したユーザの権限に応じて、送信する結合データの数jを決定する、
請求項7に記載の管理装置。 - 入力画像データを、互いに解像度が異なるN種類(Nは複数)の画像データに変換する解像度変換部と、
解像度がm番目(mは1以上N−1以下の整数)の画像データと解像度がm+1番目の画像データとの差分である複数の差分データを生成する差分画像生成部と、
前記複数の差分データのそれぞれをn個(nはN+1以上の整数であって、全ての差分データにおいて同一の値)の分散データに分割し、その中のk個(kは2以上n以下の整数であって、差分データ毎に互いに異なる値)を用いると元の差分データに復元できるように秘密分散処理を行う秘密分散処理部と、
各解像度から重複しないように1つずつ選択された分散データを結合してn個の結合データを生成し、各結合データを互いに異なるストレージに保存させるデータ結合部と、
を具備する管理装置。 - 請求項1から請求項9のいずれか一項に記載の管理装置と、
前記結合データを保存するストレージと、
を具備する画像処理システム。
Priority Applications (4)
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JP2014246924A JP6489413B2 (ja) | 2014-12-05 | 2014-12-05 | 管理装置及び画像処理システム |
US15/524,108 US10230997B2 (en) | 2014-12-05 | 2015-11-30 | Management device and image processing system |
EP15864842.8A EP3229465B1 (en) | 2014-12-05 | 2015-11-30 | Management device and image processing system |
PCT/JP2015/005939 WO2016088347A1 (ja) | 2014-12-05 | 2015-11-30 | 管理装置及び画像処理システム |
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JP2014246924A JP6489413B2 (ja) | 2014-12-05 | 2014-12-05 | 管理装置及び画像処理システム |
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JP2016111511A true JP2016111511A (ja) | 2016-06-20 |
JP2016111511A5 JP2016111511A5 (ja) | 2018-01-25 |
JP6489413B2 JP6489413B2 (ja) | 2019-03-27 |
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US (1) | US10230997B2 (ja) |
EP (1) | EP3229465B1 (ja) |
JP (1) | JP6489413B2 (ja) |
WO (1) | WO2016088347A1 (ja) |
Families Citing this family (1)
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US20190356744A1 (en) * | 2018-05-17 | 2019-11-21 | International Business Machines Corporation | Transforming a shortened link based upon social event for tracking sharing analytics |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2004274320A (ja) * | 2003-03-07 | 2004-09-30 | Oki Electric Ind Co Ltd | 秘密分散装置、秘密再構成装置、秘密分散再構成システム、秘密分散方法、及び秘密再構成方法 |
JP2007010862A (ja) * | 2005-06-29 | 2007-01-18 | Kddi Corp | 画像分散情報生成装置およびその合成装置 |
JP2012175626A (ja) * | 2011-02-24 | 2012-09-10 | Kddi Corp | 配信映像の超解像化装置および超解像映像再生装置 |
JP2014138314A (ja) * | 2013-01-17 | 2014-07-28 | Toshiba Corp | 電子機器、電子機器の制御方法及び制御プログラム |
Family Cites Families (5)
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JP4629555B2 (ja) * | 2005-11-07 | 2011-02-09 | インターナショナル・ビジネス・マシーンズ・コーポレーション | 復元装置、プログラム、情報システム、復元方法、保管装置、保管システム及び保管方法 |
US9268750B2 (en) * | 2012-04-04 | 2016-02-23 | Offerpop Corporation | Shared link tracking in online social networking systems |
JP6273566B2 (ja) | 2013-04-12 | 2018-02-07 | パナソニックIpマネジメント株式会社 | 通信システム、画像生成方法、及び通信装置 |
KR102249978B1 (ko) * | 2013-12-03 | 2021-05-11 | 소니 주식회사 | 수신 장치 |
US9794604B2 (en) * | 2014-11-14 | 2017-10-17 | Panopto, Inc. | Systems and methods for transmitting segment-quality units of a streaming video session |
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- 2014-12-05 JP JP2014246924A patent/JP6489413B2/ja active Active
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- 2015-11-30 EP EP15864842.8A patent/EP3229465B1/en active Active
- 2015-11-30 US US15/524,108 patent/US10230997B2/en active Active
- 2015-11-30 WO PCT/JP2015/005939 patent/WO2016088347A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004274320A (ja) * | 2003-03-07 | 2004-09-30 | Oki Electric Ind Co Ltd | 秘密分散装置、秘密再構成装置、秘密分散再構成システム、秘密分散方法、及び秘密再構成方法 |
JP2007010862A (ja) * | 2005-06-29 | 2007-01-18 | Kddi Corp | 画像分散情報生成装置およびその合成装置 |
JP2012175626A (ja) * | 2011-02-24 | 2012-09-10 | Kddi Corp | 配信映像の超解像化装置および超解像映像再生装置 |
JP2014138314A (ja) * | 2013-01-17 | 2014-07-28 | Toshiba Corp | 電子機器、電子機器の制御方法及び制御プログラム |
Also Published As
Publication number | Publication date |
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US20170318316A1 (en) | 2017-11-02 |
WO2016088347A1 (ja) | 2016-06-09 |
EP3229465B1 (en) | 2022-01-05 |
EP3229465A4 (en) | 2017-12-06 |
JP6489413B2 (ja) | 2019-03-27 |
US10230997B2 (en) | 2019-03-12 |
EP3229465A1 (en) | 2017-10-11 |
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