CN1294534C - 防止图像传感器的绿色不一致 - Google Patents
防止图像传感器的绿色不一致 Download PDFInfo
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- CN1294534C CN1294534C CNB02801068XA CN02801068A CN1294534C CN 1294534 C CN1294534 C CN 1294534C CN B02801068X A CNB02801068X A CN B02801068XA CN 02801068 A CN02801068 A CN 02801068A CN 1294534 C CN1294534 C CN 1294534C
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- contour filter
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Images
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/20—Image enhancement or restoration using local operators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/40—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled
- H04N25/44—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled by partially reading an SSIS array
- H04N25/447—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled by partially reading an SSIS array by preserving the colour pattern with or without loss of information
-
- 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
- H04N25/134—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements based on three different wavelength filter elements
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Color Television Image Signal Generators (AREA)
- Optical Filters (AREA)
Abstract
Description
if presence of Green then begin sigmaG=(G1+G2+G3+G4)/4 if abs(sigmaG-Gc)<Gnonuniformlevel{subtract sum of pixels and center pixel} then Green=(Gc+sigmaG)/2{the average green value of 5 pixels} end else if absence of green then begin sigmaG=(G1+G2+G3+G4)/4 if abs((G1+G2+G3+G4)/2)<Gnonuniformlevel {subtract horizontal and vertical pixel} then Green=sigmaG{the average green value of 4 pixels} else Green=Gc(the reconstructed green) end
contour_=contour*+reconstructed green{add reconstructed green to contour*} <!-- SIPO <DP n="11"> --> <dp n="d11"/> In case of absence of center green begin Do_Coring(1.4*coringlevel){execute the noise coring} Contour_a=3*contour_a{amplify the contour signal 3 times} End else,in case of presence of green begin Do_Coring(coring level){no extra coring level needed} Contour_p=contour_p{no amplification needed} end
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01200423 | 2001-02-06 | ||
EP01200423.0 | 2001-02-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1478253A CN1478253A (zh) | 2004-02-25 |
CN1294534C true CN1294534C (zh) | 2007-01-10 |
Family
ID=8179858
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB02801068XA Expired - Fee Related CN1294534C (zh) | 2001-02-06 | 2002-01-11 | 防止图像传感器的绿色不一致 |
Country Status (5)
Country | Link |
---|---|
US (2) | US6944337B2 (zh) |
EP (1) | EP1371016A2 (zh) |
JP (1) | JP4190886B2 (zh) |
CN (1) | CN1294534C (zh) |
WO (1) | WO2002063380A2 (zh) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020088429A (ko) * | 2001-02-06 | 2002-11-27 | 코닌클리즈케 필립스 일렉트로닉스 엔.브이. | 윤곽 필터 및 윤곽 필터로부터 윤곽 정보를 제공하는 방법 |
JP4190886B2 (ja) * | 2001-02-06 | 2008-12-03 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | イメージセンサにおける緑色の不均一性の防止 |
US7129976B2 (en) * | 2002-05-10 | 2006-10-31 | Koninklijke Philips Electronics N.V. | Digital image enhancing system |
JP2005532002A (ja) * | 2002-07-04 | 2005-10-20 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 信号処理方法、信号処理装置、コンピュータプログラムプロダクト、コンピュータシステム、および、カメラ |
JP2005045404A (ja) * | 2003-07-24 | 2005-02-17 | Ricoh Co Ltd | 画像処理装置、画像処理方法およびプログラム |
US7561194B1 (en) * | 2003-10-17 | 2009-07-14 | Eastman Kodak Company | Charge diffusion crosstalk reduction for image sensors |
KR100784391B1 (ko) * | 2006-09-06 | 2007-12-11 | 삼성전자주식회사 | 칼라 필터 어레이 그리고 그것을 포함하는 씨모스 이미지 센서 |
JP4284628B2 (ja) * | 2006-12-15 | 2009-06-24 | ソニー株式会社 | 撮像装置、画像処理装置、画像処理方法、画像処理方法のプログラム及び画像処理方法のプログラムを記録した記録媒体 |
US7826676B2 (en) * | 2007-03-08 | 2010-11-02 | Mitsubishi Electric Research Laboraties, Inc. | Method for filtering data with arbitrary kernel filters |
US7903900B2 (en) * | 2007-03-30 | 2011-03-08 | Hong Kong Applied Science And Technology Research Institute Co., Ltd. | Low complexity color de-noising filter |
US7830428B2 (en) * | 2007-04-12 | 2010-11-09 | Aptina Imaging Corporation | Method, apparatus and system providing green-green imbalance compensation |
KR101356698B1 (ko) * | 2007-10-01 | 2014-01-29 | 삼성전자주식회사 | 화소 간 크로스토크의 영향을 저감하는 이미지 센서, 컬러필터 어레이, 및 촬상 장치 |
JP5045380B2 (ja) * | 2007-11-13 | 2012-10-10 | ソニー株式会社 | 撮像装置および撮像データ補正方法並びにプログラム |
DE102010041569B4 (de) * | 2010-09-28 | 2017-04-06 | Leica Geosystems Ag | Digitales Kamerasystem, Farbfilterelement für digitales Kamerasystem, Verfahren zur Bestimmung von Abweichungen zwischen den Kameras eines digitalen Kamerasystems sowie Bildverarbeitungseinheit für digitales Kamerasystem |
AT515595A2 (de) * | 2014-03-27 | 2015-10-15 | 9Yards Gmbh | Verfahren zur optischen Erkennung von Zeichen |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999004554A2 (en) * | 1997-07-15 | 1999-01-28 | Koninklijke Philips Electronics N.V. | Color and contour signal generation |
WO1999030547A2 (en) * | 1997-12-08 | 1999-06-17 | Intel Corporation | A new edge-detection based noise removal algorithm |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR950001577B1 (ko) | 1992-02-21 | 1995-02-25 | 삼성전자주식회사 | 색분리 및 윤곽 보정회로 |
US6957350B1 (en) * | 1996-01-30 | 2005-10-18 | Dolby Laboratories Licensing Corporation | Encrypted and watermarked temporal and resolution layering in advanced television |
KR100574185B1 (ko) * | 1997-07-15 | 2006-04-27 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 컬러 샘플 보간방법 및 보간장치 |
WO1999039509A1 (en) * | 1998-01-29 | 1999-08-05 | Koninklijke Philips Electronics N.V. | Color signal interpolation |
US20020135683A1 (en) * | 1999-12-20 | 2002-09-26 | Hideo Tamama | Digital still camera system and method |
JP4190886B2 (ja) * | 2001-02-06 | 2008-12-03 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | イメージセンサにおける緑色の不均一性の防止 |
-
2002
- 2002-01-11 JP JP2002563066A patent/JP4190886B2/ja not_active Expired - Fee Related
- 2002-01-11 CN CNB02801068XA patent/CN1294534C/zh not_active Expired - Fee Related
- 2002-01-11 WO PCT/IB2002/000074 patent/WO2002063380A2/en not_active Application Discontinuation
- 2002-01-11 EP EP02740044A patent/EP1371016A2/en not_active Withdrawn
- 2002-02-05 US US10/067,283 patent/US6944337B2/en not_active Expired - Fee Related
-
2005
- 2005-05-03 US US11/120,587 patent/US7847842B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999004554A2 (en) * | 1997-07-15 | 1999-01-28 | Koninklijke Philips Electronics N.V. | Color and contour signal generation |
WO1999030547A2 (en) * | 1997-12-08 | 1999-06-17 | Intel Corporation | A new edge-detection based noise removal algorithm |
Also Published As
Publication number | Publication date |
---|---|
EP1371016A2 (en) | 2003-12-17 |
WO2002063380A3 (en) | 2003-09-25 |
JP4190886B2 (ja) | 2008-12-03 |
JP2004519142A (ja) | 2004-06-24 |
CN1478253A (zh) | 2004-02-25 |
US20020181770A1 (en) | 2002-12-05 |
WO2002063380A2 (en) | 2002-08-15 |
US20050195299A1 (en) | 2005-09-08 |
US7847842B2 (en) | 2010-12-07 |
US6944337B2 (en) | 2005-09-13 |
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