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JPS5610789A - Eliminating circuit for cross color of solid image pickup unit - Google Patents

Eliminating circuit for cross color of solid image pickup unit

Info

Publication number
JPS5610789A
JPS5610789A JP8668779A JP8668779A JPS5610789A JP S5610789 A JPS5610789 A JP S5610789A JP 8668779 A JP8668779 A JP 8668779A JP 8668779 A JP8668779 A JP 8668779A JP S5610789 A JPS5610789 A JP S5610789A
Authority
JP
Japan
Prior art keywords
color
band
signals
image pickup
gamma
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
JP8668779A
Other languages
Japanese (ja)
Other versions
JPS6238911B2 (en
Inventor
Fumio Nagumo
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 JP8668779A priority Critical patent/JPS5610789A/en
Publication of JPS5610789A publication Critical patent/JPS5610789A/en
Publication of JPS6238911B2 publication Critical patent/JPS6238911B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof
    • H04N23/84—Camera processing pipelines; Components thereof for processing colour signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Television Image Signal Generators (AREA)

Abstract

PURPOSE:To prevent the generation of cross color by making gamma corrections after passing each primary-color signal through a band-suppressing circuit and then by setting the suppressed band to the band widths of upper and lower color signals with a sampling frequency of one half between both the signals. CONSTITUTION:Outputs of image pickup elements 1R-1B that takes pictures of respective separated primary-color images are applied to sample holding circuits 2R-2B and waveform-shaped there. Those waveform-shaping outputs are applied to band-suppressing circuits 20R-20B, which limit signal band components of primary-color signals to remove high-frequency components included in the image pickup outputs, and gamma correcting circuits 3R-3B make gamma corrections. Those gamma- corrected signals are applied to matrix circuit 5, which generates and supplies color- difference signals R-Y and B-Y and low-frequency luminance signal YL to encoder 9. At this time, bands to be suppressed are set to band widths of upper and lower color signals with a 1/2 sampling frequency between the both, thereby preventing the generation of cross color.
JP8668779A 1979-07-09 1979-07-09 Eliminating circuit for cross color of solid image pickup unit Granted JPS5610789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8668779A JPS5610789A (en) 1979-07-09 1979-07-09 Eliminating circuit for cross color of solid image pickup unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8668779A JPS5610789A (en) 1979-07-09 1979-07-09 Eliminating circuit for cross color of solid image pickup unit

Publications (2)

Publication Number Publication Date
JPS5610789A true JPS5610789A (en) 1981-02-03
JPS6238911B2 JPS6238911B2 (en) 1987-08-20

Family

ID=13893894

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8668779A Granted JPS5610789A (en) 1979-07-09 1979-07-09 Eliminating circuit for cross color of solid image pickup unit

Country Status (1)

Country Link
JP (1) JPS5610789A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0138074A2 (en) * 1983-09-16 1985-04-24 Hitachi, Ltd. Color video camera signal processing circuit
EP0605212A1 (en) * 1992-12-28 1994-07-06 Canon Kabushiki Kaisha Image pickup apparatus
US7477303B2 (en) 1995-07-31 2009-01-13 Sony Corporation Anti-aliasing video camera processing apparatus and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0138074A2 (en) * 1983-09-16 1985-04-24 Hitachi, Ltd. Color video camera signal processing circuit
EP0605212A1 (en) * 1992-12-28 1994-07-06 Canon Kabushiki Kaisha Image pickup apparatus
US5523785A (en) * 1992-12-28 1996-06-04 Canon Kabushiki Kaisha Image pickup apparatus for a video camera
US7477303B2 (en) 1995-07-31 2009-01-13 Sony Corporation Anti-aliasing video camera processing apparatus and method

Also Published As

Publication number Publication date
JPS6238911B2 (en) 1987-08-20

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