DE2903047A1 - Messung der chroma-key-flaeche in fernsehsystemen - Google Patents

Messung der chroma-key-flaeche in fernsehsystemen

Info

Publication number
DE2903047A1
DE2903047A1 DE19792903047 DE2903047A DE2903047A1 DE 2903047 A1 DE2903047 A1 DE 2903047A1 DE 19792903047 DE19792903047 DE 19792903047 DE 2903047 A DE2903047 A DE 2903047A DE 2903047 A1 DE2903047 A1 DE 2903047A1
Authority
DE
Germany
Prior art keywords
key area
line
output
key
measuring
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.)
Withdrawn
Application number
DE19792903047
Other languages
German (de)
English (en)
Inventor
Paul Roderick Noel Kellar
Richard John Taylor
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.)
Quantel Ltd
Original Assignee
Quantel 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 Quantel Ltd filed Critical Quantel Ltd
Publication of DE2903047A1 publication Critical patent/DE2903047A1/de
Withdrawn legal-status Critical Current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
    • 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
    • H04N9/76—Circuits for processing colour signals for obtaining special effects for mixing of colour signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Circuits (AREA)
  • Processing Of Color Television Signals (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
DE19792903047 1978-01-30 1979-01-26 Messung der chroma-key-flaeche in fernsehsystemen Withdrawn DE2903047A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB370278 1978-01-30

Publications (1)

Publication Number Publication Date
DE2903047A1 true DE2903047A1 (de) 1979-08-09

Family

ID=9763340

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792903047 Withdrawn DE2903047A1 (de) 1978-01-30 1979-01-26 Messung der chroma-key-flaeche in fernsehsystemen

Country Status (3)

Country Link
US (1) US4240104A (OSRAM)
DE (1) DE2903047A1 (OSRAM)
FR (1) FR2415928A1 (OSRAM)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4396939A (en) * 1980-06-09 1983-08-02 Nippon Electric Co., Ltd. Chromakey effect apparatus
US5216755A (en) * 1980-12-04 1993-06-01 Quantel Limited Video image creation system which proportionally mixes previously created image pixel data with currently created data
US5289566A (en) * 1980-12-04 1994-02-22 Quantel, Ltd. Video image creation
US4602286A (en) * 1982-01-15 1986-07-22 Quantel Limited Video processing for composite images
US4463372A (en) * 1982-03-24 1984-07-31 Ampex Corporation Spatial transformation system including key signal generator
US5459529A (en) * 1983-01-10 1995-10-17 Quantel, Ltd. Video processing for composite images
GB8420890D0 (en) * 1984-08-16 1984-09-19 Quantel Ltd Video editing systems
GB8904535D0 (en) 1989-02-28 1989-04-12 Barcrest Ltd Automatic picture taking machine
US5577179A (en) * 1992-02-25 1996-11-19 Imageware Software, Inc. Image editing system
US5345313A (en) * 1992-02-25 1994-09-06 Imageware Software, Inc Image editing system for taking a background and inserting part of an image therein
US5469536A (en) * 1992-02-25 1995-11-21 Imageware Software, Inc. Image editing system including masking capability
US5313275A (en) * 1992-09-30 1994-05-17 Colorgraphics Systems, Inc. Chroma processor including a look-up table or memory
US7859551B2 (en) 1993-10-15 2010-12-28 Bulman Richard L Object customization and presentation system
JP3480648B2 (ja) * 1996-11-12 2003-12-22 ソニー株式会社 ビデオ信号処理装置及びビデオ信号処理方法
WO2017066737A1 (en) * 2015-10-16 2017-04-20 Tribune Broadcasting Company, Llc Video-production system with metadata-based dve feature

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1391056A (en) * 1971-04-17 1975-04-16 Image Analysing Computers Ltd Feature parameter measurement by line scanning
JPS5345120A (en) * 1976-10-05 1978-04-22 Tokyo Hoso:Kk Video special effect device
JPS6011875B2 (ja) * 1977-08-17 1985-03-28 日本電気株式会社 クロマキ−トラツキング装置

Also Published As

Publication number Publication date
FR2415928A1 (fr) 1979-08-24
FR2415928B3 (OSRAM) 1981-10-02
US4240104A (en) 1980-12-16

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Legal Events

Date Code Title Description
8141 Disposal/no request for examination