GB2086686B - Chroma keying - Google Patents

Chroma keying

Info

Publication number
GB2086686B
GB2086686B GB8033205A GB8033205A GB2086686B GB 2086686 B GB2086686 B GB 2086686B GB 8033205 A GB8033205 A GB 8033205A GB 8033205 A GB8033205 A GB 8033205A GB 2086686 B GB2086686 B GB 2086686B
Authority
GB
United Kingdom
Prior art keywords
chroma keying
chroma
keying
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
Application number
GB8033205A
Other versions
GB2086686A (en
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.)
British Broadcasting Corp
Original Assignee
British Broadcasting 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 British Broadcasting Corp filed Critical British Broadcasting Corp
Priority to GB8033205A priority Critical patent/GB2086686B/en
Publication of GB2086686A publication Critical patent/GB2086686A/en
Application granted granted Critical
Publication of GB2086686B publication Critical patent/GB2086686B/en
Expired legal-status Critical Current

Links

Classifications

    • 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 Of Color Television Signals (AREA)
GB8033205A 1980-10-15 1980-10-15 Chroma keying Expired GB2086686B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8033205A GB2086686B (en) 1980-10-15 1980-10-15 Chroma keying

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8033205A GB2086686B (en) 1980-10-15 1980-10-15 Chroma keying

Publications (2)

Publication Number Publication Date
GB2086686A GB2086686A (en) 1982-05-12
GB2086686B true GB2086686B (en) 1984-03-28

Family

ID=10516677

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8033205A Expired GB2086686B (en) 1980-10-15 1980-10-15 Chroma keying

Country Status (1)

Country Link
GB (1) GB2086686B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6266791A (en) * 1985-09-16 1987-03-26 ザ・グラス・バレ−・グル−プ・インコ−ポレイテツド Chroma-key unit
GB8707088D0 (en) * 1987-03-25 1987-04-29 Quantel Ltd Character & graphical generating systems
US5990903A (en) * 1997-02-03 1999-11-23 Micron Technologies, Inc. Method and apparatus for performing chroma key, transparency and fog operations
GB2323735C (en) * 1997-03-27 2006-08-10 Quantel Ltd An image processing system

Also Published As

Publication number Publication date
GB2086686A (en) 1982-05-12

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19951015