JPS5610789A - Eliminating circuit for cross color of solid image pickup unit - Google Patents
Eliminating circuit for cross color of solid image pickup unitInfo
- 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
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.
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)
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 |
-
1979
- 1979-07-09 JP JP8668779A patent/JPS5610789A/en active Granted
Cited By (4)
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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