CA2227381A1 - Image data encoding system and image inputting apparatus - Google Patents

Image data encoding system and image inputting apparatus

Info

Publication number
CA2227381A1
CA2227381A1 CA002227381A CA2227381A CA2227381A1 CA 2227381 A1 CA2227381 A1 CA 2227381A1 CA 002227381 A CA002227381 A CA 002227381A CA 2227381 A CA2227381 A CA 2227381A CA 2227381 A1 CA2227381 A1 CA 2227381A1
Authority
CA
Canada
Prior art keywords
electronic watermark
data
image data
encoding system
embedding
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
Application number
CA002227381A
Other languages
French (fr)
Other versions
CA2227381C (en
Inventor
Hirotaka Nakano
Masahiro Hashimoto
Koji Manabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Personal Computers Ltd
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Publication of CA2227381A1 publication Critical patent/CA2227381A1/en
Application granted granted Critical
Publication of CA2227381C publication Critical patent/CA2227381C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • G06T1/0028—Adaptive watermarking, e.g. Human Visual System [HVS]-based watermarking
    • G06T1/0035—Output size adaptive watermarking
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • G06T1/20—Processor architectures; Processor configuration, e.g. pipelining
    • 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
    • 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
    • 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
    • H04N1/32187—Transform domain methods with selective or adaptive application of the additional information, e.g. in selected frequency coefficients
    • 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
    • H04N1/32187—Transform domain methods with selective or adaptive application of the additional information, e.g. in selected frequency coefficients
    • H04N1/32192—Transform domain methods with selective or adaptive application of the additional information, e.g. in selected frequency coefficients according to calculated or estimated visibility of the additional information in the image
    • 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
    • H04N1/32267—Methods relating to embedding, encoding, decoding, detection or retrieval operations combined with processing of the image
    • H04N1/32277—Compression
    • 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
    • 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
    • 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
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2389—Multiplex stream processing, e.g. multiplex stream encrypting
    • H04N21/23892—Multiplex stream processing, e.g. multiplex stream encrypting involving embedding information at multiplex stream level, e.g. embedding a watermark at packet level
    • 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
    • H04N21/835—Generation of protective data, e.g. certificates
    • H04N21/8358—Generation of protective data, e.g. certificates involving watermark
    • 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
    • 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
    • H04N2201/324—Selecting a particular authentication information from amongst a plurality of different authentication information

Abstract

An image data encoding system is disclosed, that comprises a discrete cosine transforming means for discrete-cosine transforming the original image, an electronic watermark data embedding means for embedding the electronic watermark data in the data that has been transformed by the discrete cosine transforming means, and a data selecting means for selecting the output signal of the discrete cosine transforming means or the output signal of the electronic watermark data embedding means.
Another image data encoding system is also disclosed, that comprises an electronic watermark embedding means for embedding electronic watermark data selected from a plurality of types of electronic watermark data to the digital image data, wherein at least one of the plurality of types of electronic watermark data is predetermined electronic watermark data that does not affect the digital image data even if the electronic watermark data is embedded in the digital image data.
CA002227381A 1997-02-14 1998-02-10 Image data encoding system and image inputting apparatus Expired - Fee Related CA2227381C (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2999297 1997-02-14
JP029992/1997 1997-02-14
JP032212/1997 1997-02-17
JP3221297 1997-02-17
JP057469/1997 1997-03-12
JP5746997 1997-03-12

Publications (2)

Publication Number Publication Date
CA2227381A1 true CA2227381A1 (en) 1998-08-14
CA2227381C CA2227381C (en) 2001-05-29

Family

ID=27286800

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002227381A Expired - Fee Related CA2227381C (en) 1997-02-14 1998-02-10 Image data encoding system and image inputting apparatus

Country Status (5)

Country Link
US (2) US6298142B1 (en)
EP (2) EP1394735A3 (en)
KR (1) KR100326510B1 (en)
CA (1) CA2227381C (en)
SG (1) SG84508A1 (en)

Families Citing this family (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6614914B1 (en) 1995-05-08 2003-09-02 Digimarc Corporation Watermark embedder and reader
US6590996B1 (en) 2000-02-14 2003-07-08 Digimarc Corporation Color adaptive watermarking
US7006661B2 (en) 1995-07-27 2006-02-28 Digimarc Corp Digital watermarking systems and methods
US6307949B1 (en) * 1996-05-07 2001-10-23 Digimarc Corporation Methods for optimizing watermark detection
US6229924B1 (en) 1996-05-16 2001-05-08 Digimarc Corporation Method and apparatus for watermarking video images
US6320675B1 (en) * 1997-07-15 2001-11-20 Canon Kabushiki Kaisha Image processing apparatus and method and storage medium
US6330672B1 (en) * 1997-12-03 2001-12-11 At&T Corp. Method and apparatus for watermarking digital bitstreams
US7602940B2 (en) 1998-04-16 2009-10-13 Digimarc Corporation Steganographic data hiding using a device clock
JP3214555B2 (en) * 1998-05-06 2001-10-02 日本電気株式会社 Digital watermark insertion device
US6233347B1 (en) * 1998-05-21 2001-05-15 Massachusetts Institute Of Technology System method, and product for information embedding using an ensemble of non-intersecting embedding generators
US7644282B2 (en) 1998-05-28 2010-01-05 Verance Corporation Pre-processed information embedding system
US6912315B1 (en) * 1998-05-28 2005-06-28 Verance Corporation Pre-processed information embedding system
JP4182603B2 (en) 1998-10-07 2008-11-19 ソニー株式会社 Encoding apparatus and encoding method, decoding apparatus and decoding method, recording medium, and data processing apparatus
US6965697B1 (en) 1998-07-15 2005-11-15 Sony Corporation Coding apparatus and method, decoding apparatus and method, data processing system, storage medium, and signal
TW395133B (en) * 1998-07-15 2000-06-21 Koninkl Philips Electronics Nv Detection of a watermark in a compressed video signal
JP3266569B2 (en) * 1998-07-29 2002-03-18 日本電気株式会社 Image attribute change system using digital watermark data
US7197156B1 (en) * 1998-09-25 2007-03-27 Digimarc Corporation Method and apparatus for embedding auxiliary information within original data
US7532740B2 (en) 1998-09-25 2009-05-12 Digimarc Corporation Method and apparatus for embedding auxiliary information within original data
US7373513B2 (en) * 1998-09-25 2008-05-13 Digimarc Corporation Transmarking of multimedia signals
JP4143884B2 (en) 1998-10-07 2008-09-03 ソニー株式会社 Encoding apparatus and encoding method, decoding apparatus and decoding method, recording medium, and data processing apparatus
KR100711012B1 (en) * 1998-10-07 2007-04-25 소니 가부시끼 가이샤 Coding apparatus and method, decoding apparatus and method, data processing system, storage medium, and signal
US8290202B2 (en) 1998-11-03 2012-10-16 Digimarc Corporation Methods utilizing steganography
US6748533B1 (en) * 1998-12-23 2004-06-08 Kent Ridge Digital Labs Method and apparatus for protecting the legitimacy of an article
WO2000039954A1 (en) * 1998-12-29 2000-07-06 Kent Ridge Digital Labs Method and apparatus for embedding digital information in digital multimedia data
EP1465405A3 (en) * 1999-03-18 2005-01-19 British Broadcasting Corporation Watermarking
EP1195047B1 (en) * 1999-03-18 2004-06-23 British Broadcasting Corporation Watermarking
JP3728136B2 (en) * 1999-03-30 2005-12-21 キヤノン株式会社 Image processing apparatus, image processing method, and storage medium
JP3651319B2 (en) * 1999-07-16 2005-05-25 日本ビクター株式会社 Digital watermark information recording method, reproduction method, digital watermark information recording apparatus, and reproduction apparatus
US6439465B1 (en) * 1999-09-24 2002-08-27 Xerox Corporation Encoding small amounts of embedded digital data at arbitrary locations within an image
JP3976969B2 (en) * 1999-12-02 2007-09-19 キヤノン株式会社 Image processing apparatus, image processing method, and storage medium
US6621866B1 (en) * 2000-01-28 2003-09-16 Thomson Licensing S.A. Method for inserting a visual element into an MPEG bit stream
US6737957B1 (en) 2000-02-16 2004-05-18 Verance Corporation Remote control signaling using audio watermarks
GB0029855D0 (en) 2000-04-05 2001-01-24 Sony Uk Ltd Embedding data in material and removing the embedded data
JP3690726B2 (en) 2000-04-13 2005-08-31 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 Data processing apparatus, image processing apparatus, and methods thereof
JP4688375B2 (en) * 2000-11-28 2011-05-25 ゼロックス コーポレイション Printing method to prevent document forgery
US7110541B1 (en) 2000-11-28 2006-09-19 Xerox Corporation Systems and methods for policy based printing
US7095870B2 (en) * 2000-12-21 2006-08-22 Hitachi, Ltd. Electronic watermark embedding apparatus and method and a format conversion device having a watermark embedding function
US7159118B2 (en) * 2001-04-06 2007-01-02 Verance Corporation Methods and apparatus for embedding and recovering watermarking information based on host-matching codes
US7046819B2 (en) 2001-04-25 2006-05-16 Digimarc Corporation Encoded reference signal for digital watermarks
GB2383148A (en) * 2001-12-13 2003-06-18 Sony Uk Ltd Watermarking
US20030131350A1 (en) 2002-01-08 2003-07-10 Peiffer John C. Method and apparatus for identifying a digital audio signal
US7567721B2 (en) * 2002-01-22 2009-07-28 Digimarc Corporation Digital watermarking of low bit rate video
US7295677B2 (en) 2002-03-01 2007-11-13 Hewlett-Packard Development Company, L.P. Systems and methods for adding watermarks using network-based imaging techniques
KR100453683B1 (en) * 2002-03-15 2004-10-20 한국전자통신연구원 Method for inserting and detecting a spatial domain blind watermarks with sample expansion
KR20050005531A (en) * 2002-06-03 2005-01-13 코닌클리케 필립스 일렉트로닉스 엔.브이. Encoding and decoding of watermarks in independent channels
US7577841B2 (en) 2002-08-15 2009-08-18 Digimarc Corporation Watermark placement in watermarking of time varying media signals
EP1552454B1 (en) 2002-10-15 2014-07-23 Verance Corporation Media monitoring, management and information system
WO2004038538A2 (en) 2002-10-23 2004-05-06 Nielsen Media Research, Inc. Digital data insertion apparatus and methods for use with compressed audio/video data
JP2006505171A (en) * 2002-10-30 2006-02-09 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Adaptive watermark
KR100512140B1 (en) * 2003-05-12 2005-09-02 엘지전자 주식회사 Moving picture coding method
US7460684B2 (en) 2003-06-13 2008-12-02 Nielsen Media Research, Inc. Method and apparatus for embedding watermarks
US20060239501A1 (en) 2005-04-26 2006-10-26 Verance Corporation Security enhancements of digital watermarks for multi-media content
TWI227628B (en) * 2003-11-26 2005-02-01 Inst Information Industry System and method for image protection
TWI404419B (en) * 2004-04-07 2013-08-01 Nielsen Media Res Inc Data insertion methods , sysytems, machine readable media and apparatus for use with compressed audio/video data
CN102592638A (en) 2004-07-02 2012-07-18 尼尔逊媒介研究股份有限公司 Method and apparatus for mixing compressed digital bit streams
GB2418793A (en) * 2004-10-04 2006-04-05 Democracy Systems Inc Validating electronic voting by analysing sampled frames of a user interface
DE102005007487A1 (en) * 2005-02-17 2006-08-24 Siemens Ag Tool for electrostatic discharge protected assembly of detector module e.g. for x-ray computed tomography, has module electrical plug connection located between plug and electrostatic discharge protected tool operative
US7599515B2 (en) * 2005-03-17 2009-10-06 Interdigital Technology Corporation Wireless communication method and apparatus for generating, watermarking and securely transmitting content
US8020004B2 (en) * 2005-07-01 2011-09-13 Verance Corporation Forensic marking using a common customization function
US8781967B2 (en) * 2005-07-07 2014-07-15 Verance Corporation Watermarking in an encrypted domain
EP2095560B1 (en) 2006-10-11 2015-09-09 The Nielsen Company (US), LLC Methods and apparatus for embedding codes in compressed audio data streams
JP2009077210A (en) * 2007-09-21 2009-04-09 Canon Inc Electronic watermark embedding device and electronic watermark embedding method
US8259938B2 (en) 2008-06-24 2012-09-04 Verance Corporation Efficient and secure forensic marking in compressed
US9607131B2 (en) 2010-09-16 2017-03-28 Verance Corporation Secure and efficient content screening in a networked environment
US8533481B2 (en) 2011-11-03 2013-09-10 Verance Corporation Extraction of embedded watermarks from a host content based on extrapolation techniques
US8682026B2 (en) 2011-11-03 2014-03-25 Verance Corporation Efficient extraction of embedded watermarks in the presence of host content distortions
US8923548B2 (en) 2011-11-03 2014-12-30 Verance Corporation Extraction of embedded watermarks from a host content using a plurality of tentative watermarks
US8615104B2 (en) 2011-11-03 2013-12-24 Verance Corporation Watermark extraction based on tentative watermarks
US8745403B2 (en) 2011-11-23 2014-06-03 Verance Corporation Enhanced content management based on watermark extraction records
US9547753B2 (en) 2011-12-13 2017-01-17 Verance Corporation Coordinated watermarking
US9323902B2 (en) 2011-12-13 2016-04-26 Verance Corporation Conditional access using embedded watermarks
US9571606B2 (en) 2012-08-31 2017-02-14 Verance Corporation Social media viewing system
US9106964B2 (en) 2012-09-13 2015-08-11 Verance Corporation Enhanced content distribution using advertisements
US8869222B2 (en) 2012-09-13 2014-10-21 Verance Corporation Second screen content
US8726304B2 (en) 2012-09-13 2014-05-13 Verance Corporation Time varying evaluation of multimedia content
US9262793B2 (en) 2013-03-14 2016-02-16 Verance Corporation Transactional video marking system
US9251549B2 (en) 2013-07-23 2016-02-02 Verance Corporation Watermark extractor enhancements based on payload ranking
US9208334B2 (en) 2013-10-25 2015-12-08 Verance Corporation Content management using multiple abstraction layers
EP3117626A4 (en) 2014-03-13 2017-10-25 Verance Corporation Interactive content acquisition using embedded codes
US9641721B2 (en) * 2014-12-18 2017-05-02 Kyocera Document Solutions Inc. Apparatus and method for processing image data with multiple flip-flop storages

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3514389A1 (en) * 1985-04-20 1986-10-23 E.C.H. Will (Gmbh & Co), 2000 Hamburg METHOD AND DEVICE FOR THE POSITIVE POSITIONING OF MARKINGS ON SECTIONS OF MATERIAL
JP3295103B2 (en) 1991-05-29 2002-06-24 キヤノン株式会社 Image processing apparatus and method
JP3598331B2 (en) 1992-06-30 2004-12-08 コニカミノルタビジネステクノロジーズ株式会社 Image processing device
JPH0622062A (en) 1992-06-30 1994-01-28 Minolta Camera Co Ltd Image processor
US5748783A (en) * 1995-05-08 1998-05-05 Digimarc Corporation Method and apparatus for robust information coding
US5822436A (en) * 1996-04-25 1998-10-13 Digimarc Corporation Photographic products and methods employing embedded information
US5748763A (en) * 1993-11-18 1998-05-05 Digimarc Corporation Image steganography system featuring perceptually adaptive and globally scalable signal embedding
US5488664A (en) 1994-04-22 1996-01-30 Yeda Research And Development Co., Ltd. Method and apparatus for protecting visual information with printed cryptographic watermarks
US5530751A (en) * 1994-06-30 1996-06-25 Hewlett-Packard Company Embedded hidden identification codes in digital objects
US6002772A (en) * 1995-09-29 1999-12-14 Mitsubishi Corporation Data management system
US5530759A (en) * 1995-02-01 1996-06-25 International Business Machines Corporation Color correct digital watermarking of images
CA2184949C (en) * 1995-09-28 2000-05-30 Ingemar J. Cox Secure spread spectrum watermarking for multimedia data
WO1997013248A1 (en) * 1995-10-04 1997-04-10 Philips Electronics N.V. Marking a digitally encoded video and/or audio signal
US5805482A (en) * 1995-10-20 1998-09-08 Matsushita Electric Corporation Of America Inverse discrete cosine transform processor having optimum input structure
US5664018A (en) * 1996-03-12 1997-09-02 Leighton; Frank Thomson Watermarking process resilient to collusion attacks
WO1998003014A1 (en) * 1996-07-16 1998-01-22 Philips Electronics N.V. Detecting a watermark embedded in an information signal
US6061793A (en) * 1996-08-30 2000-05-09 Regents Of The University Of Minnesota Method and apparatus for embedding data, including watermarks, in human perceptible sounds
US5848155A (en) * 1996-09-04 1998-12-08 Nec Research Institute, Inc. Spread spectrum watermark for embedded signalling
US6069914A (en) * 1996-09-19 2000-05-30 Nec Research Institute, Inc. Watermarking of image data using MPEG/JPEG coefficients
US5809139A (en) * 1996-09-13 1998-09-15 Vivo Software, Inc. Watermarking method and apparatus for compressed digital video
US5915027A (en) * 1996-11-05 1999-06-22 Nec Research Institute Digital watermarking
KR100234493B1 (en) 1997-11-18 2000-07-01 박한채 A bulletin board

Also Published As

Publication number Publication date
SG84508A1 (en) 2001-11-20
US20010046308A1 (en) 2001-11-29
US6298142B1 (en) 2001-10-02
EP0859337A3 (en) 1999-01-27
US6424726B2 (en) 2002-07-23
EP0859337A2 (en) 1998-08-19
EP1394735A2 (en) 2004-03-03
KR19980071310A (en) 1998-10-26
KR100326510B1 (en) 2002-07-03
EP1394735A3 (en) 2004-09-01
CA2227381C (en) 2001-05-29

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