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
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- pixel
- filter
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- 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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- 238000003491 array Methods 0.000 claims description 40
- 238000001914 filtration Methods 0.000 claims description 32
- 230000009466 transformation Effects 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 17
- 239000003086 colorant Substances 0.000 claims description 10
- 238000004590 computer program Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 2
- 230000000295 complement effect Effects 0.000 claims 1
- 238000012545 processing Methods 0.000 description 16
- 239000011159 matrix material Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 11
- 238000012360 testing method Methods 0.000 description 8
- 230000000875 corresponding effect Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000004422 calculation algorithm Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000000844 transformation Methods 0.000 description 2
- 241001673391 Entandrophragma candollei Species 0.000 description 1
- 241001062009 Indigofera Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000001915 proofreading effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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 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
- H04N25/10—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
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*} 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 |
---|---|---|---|
EP01200423.0 | 2001-02-06 | ||
EP01200423 | 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 |
---|---|---|---|---|
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 |
WO2002063887A1 (en) * | 2001-02-06 | 2002-08-15 | Koninklijke Philips Electronics N.V. | Contour filter for image sensor output signals |
US7129976B2 (en) * | 2002-05-10 | 2006-10-31 | Koninklijke Philips Electronics N.V. | Digital image enhancing system |
CN1666230A (zh) * | 2002-07-04 | 2005-09-07 | 皇家飞利浦电子股份有限公司 | 信号处理方法和设备、计算机程序产品、计算系统和摄影机 |
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 |
WO1999004555A2 (en) * | 1997-07-15 | 1999-01-28 | Koninklijke Philips Electronics N.V. | Color sample interpolation |
JP4404231B2 (ja) * | 1997-07-15 | 2010-01-27 | エヌエックスピー ビー ヴィ | 色信号を生成し輪郭信号を決定する方法および装置およびこれを用いたカメラ |
US6229578B1 (en) * | 1997-12-08 | 2001-05-08 | Intel Corporation | Edge-detection based noise removal algorithm |
KR100729559B1 (ko) * | 1998-01-29 | 2007-06-18 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 색상 신호 보간 |
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 EP EP02740044A patent/EP1371016A2/en not_active Withdrawn
- 2002-01-11 WO PCT/IB2002/000074 patent/WO2002063380A2/en not_active Application Discontinuation
- 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 |
---|---|
CN1294534C (zh) | 2007-01-10 |
US7847842B2 (en) | 2010-12-07 |
JP2004519142A (ja) | 2004-06-24 |
JP4190886B2 (ja) | 2008-12-03 |
US20050195299A1 (en) | 2005-09-08 |
US6944337B2 (en) | 2005-09-13 |
WO2002063380A2 (en) | 2002-08-15 |
EP1371016A2 (en) | 2003-12-17 |
US20020181770A1 (en) | 2002-12-05 |
WO2002063380A3 (en) | 2003-09-25 |
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Owner name: IPG ELECTRONICS 503 CO., LTD. Free format text: FORMER OWNER: ROYAL PHILIPS ELECTRONICS CO., LTD. Effective date: 20090925 |
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Owner name: PENDRAGON WIRELESS CO., LTD. Free format text: FORMER OWNER: IPG ELECTRONICS 503 LTD. Effective date: 20130107 |
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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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Granted publication date: 20070110 Termination date: 20180111 |
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CF01 | Termination of patent right due to non-payment of annual fee |