JP4181802B2 - 情報処理装置、情報処理方法、プログラム、記憶媒体 - Google Patents

情報処理装置、情報処理方法、プログラム、記憶媒体 Download PDF

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Publication number
JP4181802B2
JP4181802B2 JP2002191284A JP2002191284A JP4181802B2 JP 4181802 B2 JP4181802 B2 JP 4181802B2 JP 2002191284 A JP2002191284 A JP 2002191284A JP 2002191284 A JP2002191284 A JP 2002191284A JP 4181802 B2 JP4181802 B2 JP 4181802B2
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Japan
Prior art keywords
key
tile
image
encryption
unit
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Expired - Fee Related
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JP2002191284A
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English (en)
Japanese (ja)
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JP2004040248A5 (enExample
JP2004040248A (ja
Inventor
淳一 林
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Canon Inc
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Canon Inc
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Filing date
Publication date
Priority to JP2002191284A priority Critical patent/JP4181802B2/ja
Application filed by Canon Inc filed Critical Canon Inc
Priority to EP20030761785 priority patent/EP1518348B1/en
Priority to AU2003243006A priority patent/AU2003243006A1/en
Priority to CNB03814879XA priority patent/CN100456668C/zh
Priority to PCT/JP2003/007976 priority patent/WO2004004198A1/en
Publication of JP2004040248A publication Critical patent/JP2004040248A/ja
Priority to US10/965,874 priority patent/US7447314B2/en
Publication of JP2004040248A5 publication Critical patent/JP2004040248A5/ja
Application granted granted Critical
Publication of JP4181802B2 publication Critical patent/JP4181802B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • 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
    • H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
    • H04L9/0872—Generation of secret information including derivation or calculation of cryptographic keys or passwords using geo-location information, e.g. location data, time, relative position or proximity to other entities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/44—Secrecy systems
    • H04N1/448—Rendering the image unintelligible, e.g. scrambling
    • H04N1/4486—Rendering the image unintelligible, e.g. scrambling using digital data encryption
    • 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
    • H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
    • 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]
    • H04N21/20—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
    • 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
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
    • H04N21/44055—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption by partially decrypting, e.g. decrypting a video stream that has been partially encrypted

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Facsimile Transmission Control (AREA)
JP2002191284A 2002-06-28 2002-06-28 情報処理装置、情報処理方法、プログラム、記憶媒体 Expired - Fee Related JP4181802B2 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2002191284A JP4181802B2 (ja) 2002-06-28 2002-06-28 情報処理装置、情報処理方法、プログラム、記憶媒体
AU2003243006A AU2003243006A1 (en) 2002-06-28 2003-06-24 Information processing method, information processing apparatus, program, and storage medium
CNB03814879XA CN100456668C (zh) 2002-06-28 2003-06-24 信息处理方法和信息处理设备
PCT/JP2003/007976 WO2004004198A1 (en) 2002-06-28 2003-06-24 Information processing method, information processing apparatus, program, and storage medium
EP20030761785 EP1518348B1 (en) 2002-06-28 2003-06-24 Information processing method, information processing apparatus, program, and storage medium
US10/965,874 US7447314B2 (en) 2002-06-28 2004-10-18 Information processing method, information processing apparatus, program, and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002191284A JP4181802B2 (ja) 2002-06-28 2002-06-28 情報処理装置、情報処理方法、プログラム、記憶媒体

Publications (3)

Publication Number Publication Date
JP2004040248A JP2004040248A (ja) 2004-02-05
JP2004040248A5 JP2004040248A5 (enExample) 2007-05-24
JP4181802B2 true JP4181802B2 (ja) 2008-11-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002191284A Expired - Fee Related JP4181802B2 (ja) 2002-06-28 2002-06-28 情報処理装置、情報処理方法、プログラム、記憶媒体

Country Status (6)

Country Link
US (1) US7447314B2 (enExample)
EP (1) EP1518348B1 (enExample)
JP (1) JP4181802B2 (enExample)
CN (1) CN100456668C (enExample)
AU (1) AU2003243006A1 (enExample)
WO (1) WO2004004198A1 (enExample)

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JP2004140667A (ja) 2002-10-18 2004-05-13 Canon Inc 情報処理方法
JP2004140668A (ja) 2002-10-18 2004-05-13 Canon Inc 情報処理方法
CN100394800C (zh) * 2003-01-14 2008-06-11 日本电信电话株式会社 编码方法、解码方法、编码装置及解码装置
JP2004242287A (ja) 2003-01-14 2004-08-26 Canon Inc 情報処理方法及び装置、並びにコンピュータプログラム及びコンピュータ可読記憶媒体
JP4310285B2 (ja) * 2005-02-09 2009-08-05 キヤノン株式会社 情報処理方法及び装置、並びにコンピュータプログラム及びコンピュータ可読記憶媒体
KR20060107282A (ko) * 2005-04-07 2006-10-13 엘지전자 주식회사 데이터 재생방법, 데이터 기록재생 플레이어 및 데이터전송방법
JP5043421B2 (ja) 2005-12-28 2012-10-10 キヤノン株式会社 情報処理装置およびその方法
US20110075537A1 (en) * 2009-09-25 2011-03-31 General Electric Company Holographic disc with improved features and method for the same
US8363829B2 (en) * 2010-08-04 2013-01-29 Huang Lawrence P System for descrambling and methods for use therewith
IT1403450B1 (it) * 2011-01-19 2013-10-17 Sisvel S P A Flusso video costituito da frame video combinati, e procedimento e dispositivi per la sua generazione, trasmissione, ricezione e riproduzione
JP5921120B2 (ja) 2011-09-07 2016-05-24 キヤノン株式会社 情報処理装置、情報処理方法
EP2642744A1 (en) 2012-03-19 2013-09-25 Nagravision S.A. Method and system for scrambling and descrambling a digital image
CN104637039B (zh) * 2013-11-07 2020-07-07 深圳市腾讯计算机系统有限公司 一种图片处理的方法及装置
CN108109110B (zh) * 2017-12-25 2023-03-28 努比亚技术有限公司 图片加密方法、移动终端和计算机可读存储介质
EP4113324A1 (en) * 2021-06-30 2023-01-04 PreciPoint GmbH Method for generating an image file archive, method for providing a microscopic image in an image file archive, method for restoring a partial image from an image file archive, and image file archive
KR20230023359A (ko) * 2021-08-10 2023-02-17 한화테크윈 주식회사 감시카메라 시스템

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JPH0937010A (ja) 1995-07-21 1997-02-07 Canon Inc 画像出力装置及びその制御方法
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Also Published As

Publication number Publication date
US7447314B2 (en) 2008-11-04
WO2004004198A1 (en) 2004-01-08
EP1518348A4 (en) 2011-03-23
CN1663173A (zh) 2005-08-31
EP1518348A1 (en) 2005-03-30
EP1518348B1 (en) 2013-06-05
JP2004040248A (ja) 2004-02-05
CN100456668C (zh) 2009-01-28
AU2003243006A1 (en) 2004-01-19
US20050078820A1 (en) 2005-04-14

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