AU7541300A - Apparatus for encoding and decoding codes - Google Patents

Apparatus for encoding and decoding codes

Info

Publication number
AU7541300A
AU7541300A AU75413/00A AU7541300A AU7541300A AU 7541300 A AU7541300 A AU 7541300A AU 75413/00 A AU75413/00 A AU 75413/00A AU 7541300 A AU7541300 A AU 7541300A AU 7541300 A AU7541300 A AU 7541300A
Authority
AU
Australia
Prior art keywords
encoding
decoding codes
decoding
codes
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.)
Abandoned
Application number
AU75413/00A
Inventor
Jia Hong Yin
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.)
Central Research Laboratories Ltd
Original Assignee
Central Research Laboratories Ltd
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 Central Research Laboratories Ltd filed Critical Central Research Laboratories Ltd
Publication of AU7541300A publication Critical patent/AU7541300A/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • H04N21/238—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
    • 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
    • G06T2201/0083—Image watermarking whereby only watermarked image required at decoder, e.g. source-based, blind, oblivious

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Editing Of Facsimile Originals (AREA)
AU75413/00A 1999-10-02 2000-10-02 Apparatus for encoding and decoding codes Abandoned AU7541300A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9923212A GB9923212D0 (en) 1999-10-02 1999-10-02 Apparatus for, and method of, encoding code into and decoding code from a series of stored images
GB9923212 1999-10-02
PCT/GB2000/003782 WO2001026376A1 (en) 1999-10-02 2000-10-02 Apparatus for encoding and decoding codes

Publications (1)

Publication Number Publication Date
AU7541300A true AU7541300A (en) 2001-05-10

Family

ID=10861929

Family Applications (1)

Application Number Title Priority Date Filing Date
AU75413/00A Abandoned AU7541300A (en) 1999-10-02 2000-10-02 Apparatus for encoding and decoding codes

Country Status (3)

Country Link
AU (1) AU7541300A (en)
GB (1) GB9923212D0 (en)
WO (1) WO2001026376A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004104494A (en) * 2002-09-10 2004-04-02 Canon Inc Electronic watermark embedding device and its control method
FR2897487B1 (en) * 2006-02-13 2008-05-16 Adentis Sa DIGITAL FILE MARKED BY A SUITE OF TRADEMARKS WHOSE CONCATENATION IS FORMING A MESSAGE AND METHOD OF EXTRACTING A BRAND OF SUCH A DIGITAL FILE MARK
EP2274912B1 (en) 2008-04-14 2012-08-29 NDS Limited System and method for embedding data in video

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPO521897A0 (en) * 1997-02-20 1997-04-11 Telstra R & D Management Pty Ltd Invisible digital watermarks
EP0860997B1 (en) * 1997-02-24 2008-12-10 Nec Corporation Digital data encode system
JP3560441B2 (en) * 1997-04-07 2004-09-02 日本アイ・ビー・エム株式会社 Multiple frame data hiding method and detection method
US5960081A (en) * 1997-06-05 1999-09-28 Cray Research, Inc. Embedding a digital signature in a video sequence
US6108434A (en) * 1997-09-12 2000-08-22 Signafy, Inc. Counteracting geometric distortions for DCT based watermarking

Also Published As

Publication number Publication date
WO2001026376A1 (en) 2001-04-12
GB9923212D0 (en) 1999-12-08

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase