JP4921566B2 - コピー保護された情報配信 - Google Patents
コピー保護された情報配信 Download PDFInfo
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- JP4921566B2 JP4921566B2 JP2009549855A JP2009549855A JP4921566B2 JP 4921566 B2 JP4921566 B2 JP 4921566B2 JP 2009549855 A JP2009549855 A JP 2009549855A JP 2009549855 A JP2009549855 A JP 2009549855A JP 4921566 B2 JP4921566 B2 JP 4921566B2
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- JP
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- Prior art keywords
- image
- watermark
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- copy protection
- user
- 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.)
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Classifications
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- 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
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
- H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
-
- 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
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
- H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
- H04N1/32154—Transform domain methods
- H04N1/32165—Transform domain methods using cosine transforms
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- 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
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
- H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
- H04N1/32203—Spatial or amplitude domain methods
- H04N1/32208—Spatial or amplitude domain methods involving changing the magnitude of selected pixels, e.g. overlay of information or super-imposition
- H04N1/32213—Modulating the least significant bits of pixels
-
- 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
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
- H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
- H04N1/32315—Selecting a particular method from amongst a plurality of methods
-
- 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
- H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
- H04N1/00281—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a telecommunication apparatus, e.g. a switched network of teleprinters for the distribution of text-based information, a selective call terminal
- H04N1/00307—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a telecommunication apparatus, e.g. a switched network of teleprinters for the distribution of text-based information, a selective call terminal with a mobile telephone apparatus
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/0077—Types of the still picture apparatus
- H04N2201/0084—Digital still camera
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N2201/3204—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to a user, sender, addressee, machine or electronic recording medium
- H04N2201/3205—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to a user, sender, addressee, machine or electronic recording medium of identification information, e.g. name or ID code
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N2201/3225—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to an image, a page or a document
- H04N2201/3233—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to an image, a page or a document of authentication information, e.g. digital signature, watermark
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N2201/3261—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of multimedia information, e.g. a sound signal
- H04N2201/3263—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of multimedia information, e.g. a sound signal of a graphical motif or symbol, e.g. Christmas symbol, logo
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N2201/3269—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of machine readable codes or marks, e.g. bar codes or glyphs
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N2201/3269—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of machine readable codes or marks, e.g. bar codes or glyphs
- H04N2201/327—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of machine readable codes or marks, e.g. bar codes or glyphs which are undetectable to the naked eye, e.g. embedded codes
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Editing Of Facsimile Originals (AREA)
- Image Processing (AREA)
- Television Signal Processing For Recording (AREA)
- Facsimile Image Signal Circuits (AREA)
Description
図1は、本願明細書に記載のシステム及び方法が実装され得る例示的なネットワークを示している。ネットワーク100は、ネットワーク102、無線アクセスポイント104、機器106を含み得る。実際には、ネットワーク100は、より少ないまたは追加のネットワーク、無線アクセスポイントおよび/または機器を含み得る。
メモリ302には、データおよびマシン可読の命令を格納するための、静的メモリ(例えばリード・オンリー・メモリ(ROM))や動的メモリ(例えばランダム・アクセス・メモリ(RAM)またはオンボード・キャッシュを含み得る。メモリ302はまた、同様に記憶デバイス(例えばフロッピー(登録商標)ディスク、CD−ROM、CDリード・ライト(R/W)ディスクおよび/またはフラッシュメモリ、または他のタイプの記憶機器を含み得る。
通信バス314は、機器106中構成要素が互いに通信できるようなインタフェースを提供し得る。
画像が変更(例えばクロップ)されても損なわれないかもしれない。過多の情報をDCT透かしにより符号化する場合、画像の品質は低減し得る。
図7は、画像を配信する前の画像前処理の例示的処理を示している。ブロック702では、ユーザ・インタフェース504と介して、画像前処理のためのユーザ入力が受け付けられおよび/またはデータベース506に格納される。
合法または不法に関わらず透かし処理されたオリジナルがコピーされるときはいつでも、コピーされた画像は透かしを保持する。このように、画像内の特定の透かしの検出により、当該画像がオリジナルのコピーであることを証明できる。
図12は、図1の機器106の他の例示的な図である。図12に示すように、機器106は、ビューファインダ1202、レンズ・アセンブリ1204、フラッシュ1206およびセンサ1208を含み得る。図12に示されないが、機器106はまた、図2〜6を参照して記載される構成要素を含み得る。
以下の事例は、透かしの無い画像、透かし、透かし処理された画像をそれぞれ示す図13A〜13Cを参照し、画像の前処理に関連する処理を説明する。当該処理は、図7および9を参照して上述した例示的処理と整合している。
前述の実施態様の記載は説明を提供するが、開示される正確な形に実施態様を制限することを意図するものではない。上述の教示を考慮したまたは当該教示の実行から得られる修正および変更が可能である。
Claims (10)
- 携帯機器において画像を取り込むステップと、
前記画像の配信についての配信先に基づき前記画像のコピー保護の所望レベルを決定するステップと、
前記画像のコピー保護の前記所望レベルに基づいて前記画像に挿入する透かしのタイプを自動的に選択するステップと、
前記携帯機器内の前記画像に前記選択したタイプの透かしを自動的に挿入するステップと、
前記携帯機器の無線インタフェースを介して前記透かしが挿入された画像を送信するステップと、
を含むことを特徴とする方法。 - 画像を前記携帯機器にダウンロードするステップと、
前記ダウンロードされた画像から透かしを抽出するステップと、
前記抽出された透かしが前記携帯機器によって前記画像に挿入された透かしであるか否かを決定するステップと、
をさらに含むことを特徴とする請求項1に記載の方法。 - 機器であって、
カメラと、
無線インタフェースと、
前記カメラを使用して前記機器において画像を取り込み、前記画像の配信についての配信先に基づき前記画像のコピー保護の所望レベルを決定し、前記画像のコピー保護の前記所望レベルに基づいて前記画像に挿入する透かしのタイプを自動的に選択し、前記画像に前記選択したタイプの透かしを自動的に挿入し、前記無線インタフェースを介して前記挿入した透かしを有する画像を他の機器に送信するためのプロセッサと、
を含むことを特徴とする機器。 - 前記透かしは秘密鍵に基づいてメッセージを符号化する透かしを含むことを特徴とする請求項3に記載の機器。
- 前記透かしは、画像に挿入されるとき、該画像が修正された後の画像から回復され得る透かしを含むことを特徴とする請求項3に記載の機器。
- 前記透かしは前記画像の作成者を識別する生体情報を含むことを特徴とする請求項5に記載の機器。
- 前記透かしに含まれる前記生体情報を提供するための生体センサをさらに含むことを特徴とする請求項6に記載の機器。
- 予め設定されたパラメータに基づいて前記画像のコピー保護の前記所望レベルを設定するステップをさらに含むことを特徴とする請求項1に記載の方法。
- 前記プロセッサは、コピー保護の前記所望レベルを示すユーザ入力に基づいて透かしの前記タイプを選択することを特徴とする請求項3に記載の機器。
- 前記プロセッサは、予め設定されたパラメータに基づいて前記画像のコピー保護の前記所望レベルを設定することを特徴とする請求項3に記載の機器。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/676,691 US8300877B2 (en) | 2007-02-20 | 2007-02-20 | Copy protected information distribution |
US11/676,691 | 2007-02-20 | ||
PCT/IB2007/053297 WO2008102219A1 (en) | 2007-02-20 | 2007-08-17 | Copy protected information distribution |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010519815A JP2010519815A (ja) | 2010-06-03 |
JP4921566B2 true JP4921566B2 (ja) | 2012-04-25 |
Family
ID=39027593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009549855A Expired - Fee Related JP4921566B2 (ja) | 2007-02-20 | 2007-08-17 | コピー保護された情報配信 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8300877B2 (ja) |
EP (1) | EP2123014A1 (ja) |
JP (1) | JP4921566B2 (ja) |
CN (1) | CN101611620B (ja) |
WO (1) | WO2008102219A1 (ja) |
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US20080199040A1 (en) | 2008-08-21 |
WO2008102219A1 (en) | 2008-08-28 |
CN101611620A (zh) | 2009-12-23 |
EP2123014A1 (en) | 2009-11-25 |
US8300877B2 (en) | 2012-10-30 |
CN101611620B (zh) | 2012-07-18 |
JP2010519815A (ja) | 2010-06-03 |
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