JPS58117787A - クロマキ−装置 - Google Patents

クロマキ−装置

Info

Publication number
JPS58117787A
JPS58117787A JP21111981A JP21111981A JPS58117787A JP S58117787 A JPS58117787 A JP S58117787A JP 21111981 A JP21111981 A JP 21111981A JP 21111981 A JP21111981 A JP 21111981A JP S58117787 A JPS58117787 A JP S58117787A
Authority
JP
Japan
Prior art keywords
signal
shadow
foreground
key
video data
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.)
Granted
Application number
JP21111981A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0347632B2 (enrdf_load_stackoverflow
Inventor
Yoshikazu Yamamoto
嘉一 山本
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP21111981A priority Critical patent/JPS58117787A/ja
Publication of JPS58117787A publication Critical patent/JPS58117787A/ja
Publication of JPH0347632B2 publication Critical patent/JPH0347632B2/ja
Granted 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)
JP21111981A 1981-12-30 1981-12-30 クロマキ−装置 Granted JPS58117787A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21111981A JPS58117787A (ja) 1981-12-30 1981-12-30 クロマキ−装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21111981A JPS58117787A (ja) 1981-12-30 1981-12-30 クロマキ−装置

Publications (2)

Publication Number Publication Date
JPS58117787A true JPS58117787A (ja) 1983-07-13
JPH0347632B2 JPH0347632B2 (enrdf_load_stackoverflow) 1991-07-19

Family

ID=16600711

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21111981A Granted JPS58117787A (ja) 1981-12-30 1981-12-30 クロマキ−装置

Country Status (1)

Country Link
JP (1) JPS58117787A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02233087A (ja) * 1989-01-23 1990-09-14 Grass Valley Group Inc:The コンポーネント映像信号重畳方法
US5327177A (en) * 1992-05-26 1994-07-05 The Grass Valley Group, Inc. Method of and apparatus for processing a shaped video signal to add a simulated shadow
EP0604518A4 (en) * 1991-09-10 1994-10-19 Ultimatte Corp SHADING SYSTEM WITH CONTROL SIGNAL.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS534426A (en) * 1976-03-15 1978-01-17 Tektronix Inc Device for generating special effect of video signal
JPS5451717A (en) * 1977-09-30 1979-04-23 Fujitsu General Ltd Soft chromakey system
JPS55154888A (en) * 1979-05-23 1980-12-02 Nec Corp Preventing unit for color shadow chroma-key effect
JPS5661874A (en) * 1979-10-23 1981-05-27 Matsushita Electric Ind Co Ltd Chroma-key signal generating device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS534426A (en) * 1976-03-15 1978-01-17 Tektronix Inc Device for generating special effect of video signal
JPS5451717A (en) * 1977-09-30 1979-04-23 Fujitsu General Ltd Soft chromakey system
JPS55154888A (en) * 1979-05-23 1980-12-02 Nec Corp Preventing unit for color shadow chroma-key effect
JPS5661874A (en) * 1979-10-23 1981-05-27 Matsushita Electric Ind Co Ltd Chroma-key signal generating device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02233087A (ja) * 1989-01-23 1990-09-14 Grass Valley Group Inc:The コンポーネント映像信号重畳方法
EP0604518A4 (en) * 1991-09-10 1994-10-19 Ultimatte Corp SHADING SYSTEM WITH CONTROL SIGNAL.
US5327177A (en) * 1992-05-26 1994-07-05 The Grass Valley Group, Inc. Method of and apparatus for processing a shaped video signal to add a simulated shadow

Also Published As

Publication number Publication date
JPH0347632B2 (enrdf_load_stackoverflow) 1991-07-19

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