GB2336056B - Image processing - Google Patents

Image processing

Info

Publication number
GB2336056B
GB2336056B GB9806978A GB9806978A GB2336056B GB 2336056 B GB2336056 B GB 2336056B GB 9806978 A GB9806978 A GB 9806978A GB 9806978 A GB9806978 A GB 9806978A GB 2336056 B GB2336056 B GB 2336056B
Authority
GB
United Kingdom
Prior art keywords
image processing
image
processing
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
GB9806978A
Other versions
GB9806978D0 (en
GB2336056A (en
Inventor
Daniel Pettigrew
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.)
Autodesk Canada Co
Discreet Logic Inc
Original Assignee
Autodesk Canada Co
Discreet Logic Inc
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 Autodesk Canada Co, Discreet Logic Inc filed Critical Autodesk Canada Co
Priority to GB9806978A priority Critical patent/GB2336056B/en
Publication of GB9806978D0 publication Critical patent/GB9806978D0/en
Priority to CA 2267545 priority patent/CA2267545A1/en
Publication of GB2336056A publication Critical patent/GB2336056A/en
Application granted granted Critical
Publication of GB2336056B publication Critical patent/GB2336056B/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
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/2622—Signal amplitude transition in the zone between image portions, e.g. soft edges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/74—Circuits for processing colour signals for obtaining special effects
    • H04N9/75—Chroma key

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Or Creating Images (AREA)
  • Image Processing (AREA)
  • Image Generation (AREA)
GB9806978A 1998-04-01 1998-04-01 Image processing Expired - Fee Related GB2336056B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9806978A GB2336056B (en) 1998-04-01 1998-04-01 Image processing
CA 2267545 CA2267545A1 (en) 1998-04-01 1999-03-30 Image processing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9806978A GB2336056B (en) 1998-04-01 1998-04-01 Image processing

Publications (3)

Publication Number Publication Date
GB9806978D0 GB9806978D0 (en) 1998-06-03
GB2336056A GB2336056A (en) 1999-10-06
GB2336056B true GB2336056B (en) 2002-10-16

Family

ID=10829666

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9806978A Expired - Fee Related GB2336056B (en) 1998-04-01 1998-04-01 Image processing

Country Status (2)

Country Link
CA (1) CA2267545A1 (en)
GB (1) GB2336056B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2363019B (en) 2000-04-07 2004-02-25 Discreet Logic Inc Processing image data
US20080117333A1 (en) * 2006-11-17 2008-05-22 Disney Enterprises, Inc. Method, System And Computer Program Product For Video Insertion

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2262860A (en) * 1991-12-21 1993-06-30 Philips Nv Chroma key signal generator with soft zone type keying
GB2270439A (en) * 1992-09-03 1994-03-09 Philips Electronics Nv Chromakey method and apparatus for picture signals
EP0776136A1 (en) * 1995-11-23 1997-05-28 Thomson Broadcast Systems Method and apparatus for calculating a chroma key of an object evolving on a coloured background
WO1998011510A1 (en) * 1996-09-12 1998-03-19 Discreet Logic Inc. Processing image data

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2262860A (en) * 1991-12-21 1993-06-30 Philips Nv Chroma key signal generator with soft zone type keying
GB2270439A (en) * 1992-09-03 1994-03-09 Philips Electronics Nv Chromakey method and apparatus for picture signals
EP0776136A1 (en) * 1995-11-23 1997-05-28 Thomson Broadcast Systems Method and apparatus for calculating a chroma key of an object evolving on a coloured background
WO1998011510A1 (en) * 1996-09-12 1998-03-19 Discreet Logic Inc. Processing image data

Also Published As

Publication number Publication date
GB9806978D0 (en) 1998-06-03
GB2336056A (en) 1999-10-06
CA2267545A1 (en) 1999-10-01

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20080401