KR910006858B1 - 칼러 카메라의 영상신호처리회로 - Google Patents
칼러 카메라의 영상신호처리회로 Download PDFInfo
- Publication number
- KR910006858B1 KR910006858B1 KR1019880011441A KR880011441A KR910006858B1 KR 910006858 B1 KR910006858 B1 KR 910006858B1 KR 1019880011441 A KR1019880011441 A KR 1019880011441A KR 880011441 A KR880011441 A KR 880011441A KR 910006858 B1 KR910006858 B1 KR 910006858B1
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- circuit
- color
- correction
- luminance
- 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
Links
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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
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- 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
- H04N23/88—Camera processing pipelines; Components thereof for processing colour signals for colour balance, e.g. white-balance circuits or colour temperature control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/10—Circuitry of solid-state image sensors [SSIS]; Control thereof for transforming different wavelengths into image signals
- H04N25/11—Arrangement of colour filter arrays [CFA]; Filter mosaics
- H04N25/13—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements
- H04N25/135—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements based on four or more different wavelength filter elements
- H04N25/136—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements based on four or more different wavelength filter elements using complementary colours
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Color Television Image Signal Generators (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
Description
Claims (1)
- 보색 필터(1)를 사용한 고체촬상소자(2)와 상기 고체촬상소자의 출력신호로부터 휘도신호 및 2종류의 색차신호를 생성하는 회로(6,7,8,11,17,18,29,37,38)와 상기 2종류의 색차신호(R-YL,B-YL)의 색차신호의 차신호(b)로부터 보정신호(c)를 얻는 회로(41,42)와 상기 보정신호를 휘도신호에 가하는 회로(49)를 구비한 단판식 칼러 카메라의 화질개선회로에 있어서, 색온도검출회로(45)를 또한 갖춤과 더불어 상기 보정신호를 상기 색온도검출회로부터의 출력신호로 제어하는 제어회로(46)를 구비하는 것을 특징으로 하는 칼러 카메라의 영상신호처리회로.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP87-235675 | 1987-09-18 | ||
| JP62-235675 | 1987-09-18 | ||
| JP62235675A JPH0785584B2 (ja) | 1987-09-18 | 1987-09-18 | カラーカメラの映像信号処理回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR890006063A KR890006063A (ko) | 1989-05-18 |
| KR910006858B1 true KR910006858B1 (ko) | 1991-09-07 |
Family
ID=16989538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019880011441A Expired KR910006858B1 (ko) | 1987-09-18 | 1988-09-05 | 칼러 카메라의 영상신호처리회로 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4992854A (ko) |
| EP (1) | EP0308252B1 (ko) |
| JP (1) | JPH0785584B2 (ko) |
| KR (1) | KR910006858B1 (ko) |
| DE (2) | DE308252T1 (ko) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02305194A (ja) * | 1989-05-19 | 1990-12-18 | Canon Inc | ビデオ信号処理装置 |
| DE69033583T2 (de) * | 1989-09-28 | 2001-03-08 | Canon K.K., Tokio/Tokyo | Bildaufnahmegerät |
| JP3035930B2 (ja) * | 1989-10-19 | 2000-04-24 | ソニー株式会社 | カラー固体撮像装置 |
| US5654753A (en) * | 1990-03-22 | 1997-08-05 | Canon Kabushiki Kaisha | White balance correcting device for an image sensing apparatus |
| JPH04114588A (ja) * | 1990-09-05 | 1992-04-15 | Hitachi Ltd | 撮像装置 |
| JPH04172066A (ja) * | 1990-11-06 | 1992-06-19 | Hitachi Ltd | ビデオカメラ |
| JP2003037847A (ja) * | 2001-07-26 | 2003-02-07 | Matsushita Electric Ind Co Ltd | 画像処理システム及び撮像装置並びに画像処理装置 |
| US20050259165A1 (en) * | 2002-07-04 | 2005-11-24 | Koninklijke Philips Electronics | Method and apparatus for signal processing, computer program product, computing system and camera |
| JP4597746B2 (ja) * | 2005-04-12 | 2010-12-15 | パナソニック株式会社 | 監視カメラ及び監視システムの制御方法 |
| JP5841359B2 (ja) * | 2011-06-28 | 2016-01-13 | キヤノン株式会社 | 画像処理装置及びその制御方法並びにプログラム |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5967790A (ja) * | 1982-10-08 | 1984-04-17 | Matsushita Electric Ind Co Ltd | 固体カラ−撮像装置 |
| JPS5989090A (ja) * | 1982-11-12 | 1984-05-23 | Matsushita Electric Ind Co Ltd | 固体カラ−撮像装置 |
| US4638352A (en) * | 1983-09-16 | 1987-01-20 | Hitachi, Ltd. | Color video camera signal processing circuit |
| JPS60254980A (ja) * | 1984-05-31 | 1985-12-16 | Nec Corp | カラ−撮像装置 |
| JPS6157783U (ko) * | 1984-09-21 | 1986-04-18 | ||
| US4697208A (en) * | 1985-06-13 | 1987-09-29 | Olympus Optical Co., Ltd. | Color image pickup device with complementary color type mosaic filter and gamma compensation means |
| JP2617293B2 (ja) * | 1985-10-31 | 1997-06-04 | キヤノン株式会社 | 撮像装置 |
-
1987
- 1987-09-18 JP JP62235675A patent/JPH0785584B2/ja not_active Expired - Lifetime
-
1988
- 1988-09-05 KR KR1019880011441A patent/KR910006858B1/ko not_active Expired
- 1988-09-13 US US07/243,906 patent/US4992854A/en not_active Expired - Lifetime
- 1988-09-16 EP EP88308608A patent/EP0308252B1/en not_active Expired - Lifetime
- 1988-09-16 DE DE198888308608T patent/DE308252T1/de active Pending
- 1988-09-16 DE DE8888308608T patent/DE3879595T2/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE3879595D1 (de) | 1993-04-29 |
| US4992854A (en) | 1991-02-12 |
| JPS6478092A (en) | 1989-03-23 |
| JPH0785584B2 (ja) | 1995-09-13 |
| EP0308252B1 (en) | 1993-03-24 |
| KR890006063A (ko) | 1989-05-18 |
| DE3879595T2 (de) | 1993-07-01 |
| EP0308252A3 (en) | 1990-01-31 |
| DE308252T1 (de) | 1989-11-16 |
| EP0308252A2 (en) | 1989-03-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| G160 | Decision to publish patent application | ||
| PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19880905 |
|
| PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 19880905 Comment text: Request for Examination of Application |
|
| PG1501 | Laying open of application | ||
| PG1605 | Publication of application before grant of patent |
Comment text: Decision on Publication of Application Patent event code: PG16051S01I Patent event date: 19880905 |
|
| E701 | Decision to grant or registration of patent right | ||
| PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 19911217 |
|
| GRNT | Written decision to grant | ||
| PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 19920221 Patent event code: PR07011E01D |
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| PR1002 | Payment of registration fee |
Payment date: 19920221 End annual number: 3 Start annual number: 1 |
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| PR1001 | Payment of annual fee |
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| EXPY | Expiration of term | ||
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