CN1478253A - 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
- Publication number
- CN1478253A CN1478253A CNA02801068XA CN02801068A CN1478253A CN 1478253 A CN1478253 A CN 1478253A CN A02801068X A CNA02801068X A CN A02801068XA CN 02801068 A CN02801068 A CN 02801068A CN 1478253 A CN1478253 A CN 1478253A
- Authority
- CN
- China
- Prior art keywords
- pixel
- filter
- array
- coefficient
- arrays
- 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.)
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Classifications
-
- 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 by the use of 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
- H04N25/10—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
-
- 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
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*} In case of absence of center green <dp n="d8"/> 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 (13)
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 true CN1478253A (zh) | 2004-02-25 |
CN1294534C 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 |
---|---|---|---|---|
WO2002063887A1 (en) * | 2001-02-06 | 2002-08-15 | Koninklijke Philips Electronics N.V. | Contour filter for image sensor output signals |
EP1371016A2 (en) * | 2001-02-06 | 2003-12-17 | Koninklijke Philips Electronics N.V. | Preventing green non-uniformity in image sensors |
US7129976B2 (en) * | 2002-05-10 | 2006-10-31 | Koninklijke Philips Electronics N.V. | Digital image enhancing system |
AU2003236984A1 (en) * | 2002-07-04 | 2004-01-23 | Koninklijke Philips Electronics N.V. | Method and apparatus for signal processing, computer program product, computing system and camera |
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 |
Family Cites Families (8)
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 |
KR100582854B1 (ko) * | 1997-07-15 | 2006-05-24 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 컬러 및 윤곽 신호 생성 방법 및 장치 |
US6229578B1 (en) * | 1997-12-08 | 2001-05-08 | Intel Corporation | Edge-detection based noise removal algorithm |
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 |
EP1371016A2 (en) * | 2001-02-06 | 2003-12-17 | Koninklijke Philips Electronics N.V. | Preventing green non-uniformity in image sensors |
-
2002
- 2002-01-11 EP EP02740044A patent/EP1371016A2/en not_active Withdrawn
- 2002-01-11 WO PCT/IB2002/000074 patent/WO2002063380A2/en not_active Application Discontinuation
- 2002-01-11 CN CNB02801068XA patent/CN1294534C/zh not_active Expired - Fee Related
- 2002-01-11 JP JP2002563066A patent/JP4190886B2/ja not_active Expired - Fee Related
- 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
Also Published As
Publication number | Publication date |
---|---|
WO2002063380A3 (en) | 2003-09-25 |
EP1371016A2 (en) | 2003-12-17 |
US20020181770A1 (en) | 2002-12-05 |
US6944337B2 (en) | 2005-09-13 |
US7847842B2 (en) | 2010-12-07 |
US20050195299A1 (en) | 2005-09-08 |
JP4190886B2 (ja) | 2008-12-03 |
JP2004519142A (ja) | 2004-06-24 |
CN1294534C (zh) | 2007-01-10 |
WO2002063380A2 (en) | 2002-08-15 |
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Legal Events
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: IPG ELECTRONICS 503 CO., LTD. Free format text: FORMER OWNER: ROYAL PHILIPS ELECTRONICS CO., LTD. Effective date: 20090925 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20090925 Address after: British Channel Islands Patentee after: Koninkl Philips Electronics NV Address before: Holland Ian Deho Finn Patentee before: Koninklike Philips Electronics N. V. |
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ASS | Succession or assignment of patent right |
Owner name: PENDRAGON WIRELESS CO., LTD. Free format text: FORMER OWNER: IPG ELECTRONICS 503 LTD. Effective date: 20130107 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20130107 Address after: Washington State Patentee after: Pendragon wireless limited liability company Address before: British Channel Islands Patentee before: Koninkl Philips Electronics NV |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070110 Termination date: 20180111 |
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CF01 | Termination of patent right due to non-payment of annual fee |