GB2371435B - Motion picture electronic watermark detection system - Google Patents

Motion picture electronic watermark detection system

Info

Publication number
GB2371435B
GB2371435B GB0209059A GB0209059A GB2371435B GB 2371435 B GB2371435 B GB 2371435B GB 0209059 A GB0209059 A GB 0209059A GB 0209059 A GB0209059 A GB 0209059A GB 2371435 B GB2371435 B GB 2371435B
Authority
GB
United Kingdom
Prior art keywords
detection system
motion picture
electronic watermark
watermark detection
picture electronic
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.)
Expired - Fee Related
Application number
GB0209059A
Other versions
GB0209059D0 (en
GB2371435A (en
Inventor
Shuichi Shimizu
Akio Koide
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Priority claimed from GB9904340A external-priority patent/GB2335816B/en
Publication of GB0209059D0 publication Critical patent/GB0209059D0/en
Publication of GB2371435A publication Critical patent/GB2371435A/en
Application granted granted Critical
Publication of GB2371435B publication Critical patent/GB2371435B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • G06T1/005—Robust watermarking, e.g. average attack or collusion attack resistant
    • G06T1/0078—Robust watermarking, e.g. average attack or collusion attack resistant using multiple thresholds
    • 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
GB0209059A 1998-03-24 1999-02-26 Motion picture electronic watermark detection system Expired - Fee Related GB2371435B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7551698 1998-03-24
GB9904340A GB2335816B (en) 1998-03-24 1999-02-26 Motion picture electronic watermark system

Publications (3)

Publication Number Publication Date
GB0209059D0 GB0209059D0 (en) 2002-05-29
GB2371435A GB2371435A (en) 2002-07-24
GB2371435B true GB2371435B (en) 2002-09-25

Family

ID=26315180

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0209059A Expired - Fee Related GB2371435B (en) 1998-03-24 1999-02-26 Motion picture electronic watermark detection system

Country Status (1)

Country Link
GB (1) GB2371435B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050119692A (en) * 2003-04-11 2005-12-21 코닌클리케 필립스 일렉트로닉스 엔.브이. Method of detecting watermarks

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1136945A1 (en) * 1998-11-30 2001-09-26 Hitachi, Ltd. Method for mounting electronic circuit chip

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1136945A1 (en) * 1998-11-30 2001-09-26 Hitachi, Ltd. Method for mounting electronic circuit chip

Also Published As

Publication number Publication date
GB0209059D0 (en) 2002-05-29
GB2371435A (en) 2002-07-24

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 20090123

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20180226