KR100721338B1 - 디지털 촬영장치의 색상 보간법 - Google Patents
디지털 촬영장치의 색상 보간법 Download PDFInfo
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- KR100721338B1 KR100721338B1 KR1020040116951A KR20040116951A KR100721338B1 KR 100721338 B1 KR100721338 B1 KR 100721338B1 KR 1020040116951 A KR1020040116951 A KR 1020040116951A KR 20040116951 A KR20040116951 A KR 20040116951A KR 100721338 B1 KR100721338 B1 KR 100721338B1
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- 238000003384 imaging method Methods 0.000 title description 4
- 238000000034 method Methods 0.000 claims abstract description 58
- 238000004364 calculation method Methods 0.000 claims description 9
- 239000003086 colorant Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000003044 adaptive effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
- G06T3/4015—Image demosaicing, e.g. colour filter arrays [CFA] or Bayer patterns
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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
- H04N23/843—Demosaicing, e.g. interpolating colour pixel values
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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
- H04N25/134—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements based on three different wavelength filter elements
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- 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)
- Color Image Communication Systems (AREA)
- Image Processing (AREA)
Abstract
Description
Claims (8)
- 복원할 화소에 인접하는 녹색 화소들간의 유사도를 계산하는 과정과;유사도가 가장 높은 두 화소의 녹색값의 평균을 계산하여 각 화소의 녹색값을 복원하는 과정과;상기 복원과정을 통해, 모든 화소의 녹색값이 복원되면, 복원된 녹색값을 이용하여, "기울기에 의한 보간법"에 따라 각 화소들의 적색값 또는 청색값을 복원하는 과정으로 이루어지며,여기서, 상기 평균 계산은유사도가 가장 높은 두 화소의 산술평균값과 유사도 값을 곱셈 연산하는 것임을 특징으로 하는 디지털 촬영장치의 색상 보간 방법.
- 제1항에 있어서, 상기 유사도 계산 과정은상기 복원할 화소에 인접하는 녹색 화소들의 색상값을 정규화한 후, 인접 녹색 화소들간의 유사도를 계산하는 것을 특징으로 하는 디지털 촬영장치의 색상 보간 방법.
- 제1항에 있어서, 상기 유사도 계산 과정은상기 복원할 화소의 상하좌우에 인접하는 녹색 화소들 간의 수평방향, 수직방향, 그리고 대각방향의 유사도를 구하는 것을 특징으로 하는 디지털 촬영장치의 색상 보간 방법.
- 삭제
- 제1항에 있어서, 상기 화소들은베이어 패턴(Bayer Pattern)에 따라 배열된 것임을 특징으로 하는 디지털 촬영장치의 색상 보간 방법.
- 제1항에 있어서, 상기 복원할 화소는청색 화소인 것을 특징으로 하는 디지털 촬영장치의 색상 보간 방법.
- 제1항에 있어서, 상기 복원할 화소는적색 화소인 것을 특징으로 하는 디지털 촬영장치의 색상 보간 방법.
- 복원할 화소의 상하좌우에 인접하는 녹색 화소들 중, 유사도가 가장 높은 두 화소를 구하는 과정과;상기 두 화소의 녹색값의 산술평균 값과 유사도 값을 곱셈 연산하여 각 화소의 녹색값을 복원하는 과정과;상기 복원과정을 통해, 모든 화소의 녹색값이 복원되면, 복원된 녹색값을 "기울기에 의한 보간법"에 적용하여 각 화소들의 적색값 또는 청색값을 복원하는 과정으로 이루어지는 것을 특징으로 하는 디지털 촬영장치의 색상 보간 방법.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040116951A KR100721338B1 (ko) | 2004-12-30 | 2004-12-30 | 디지털 촬영장치의 색상 보간법 |
US11/317,765 US7710437B2 (en) | 2004-12-30 | 2005-12-23 | Color interpolation algorithm |
JP2005376627A JP4253655B2 (ja) | 2004-12-30 | 2005-12-27 | デジタル撮影装置の色補間法 |
EP05028657A EP1677548A3 (en) | 2004-12-30 | 2005-12-29 | Color interpolation algorithm |
CNB2005100488177A CN100521800C (zh) | 2004-12-30 | 2005-12-30 | 颜色插值方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040116951A KR100721338B1 (ko) | 2004-12-30 | 2004-12-30 | 디지털 촬영장치의 색상 보간법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20060078646A KR20060078646A (ko) | 2006-07-05 |
KR100721338B1 true KR100721338B1 (ko) | 2007-05-28 |
Family
ID=36190638
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020040116951A KR100721338B1 (ko) | 2004-12-30 | 2004-12-30 | 디지털 촬영장치의 색상 보간법 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7710437B2 (ko) |
EP (1) | EP1677548A3 (ko) |
JP (1) | JP4253655B2 (ko) |
KR (1) | KR100721338B1 (ko) |
CN (1) | CN100521800C (ko) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2426881B (en) * | 2005-06-01 | 2010-12-29 | Snell & Wilcox Ltd | Method and apparatus for spatial interpolation of colour images |
JP5006067B2 (ja) * | 2006-06-29 | 2012-08-22 | オリンパス株式会社 | 画像処理装置、画像処理プログラム、画像処理方法 |
KR100818447B1 (ko) * | 2006-09-22 | 2008-04-01 | 삼성전기주식회사 | 컬러 필터를 사용하여 검출된 영상의 컬러 보간 방법 |
US8077234B2 (en) * | 2007-07-27 | 2011-12-13 | Kabushiki Kaisha Toshiba | Image pickup device and method for processing an interpolated color signal |
JP2009290607A (ja) * | 2008-05-29 | 2009-12-10 | Hoya Corp | 撮像装置 |
JP2009290568A (ja) * | 2008-05-29 | 2009-12-10 | Hoya Corp | 撮像装置 |
JP2009290599A (ja) * | 2008-05-29 | 2009-12-10 | Hoya Corp | 撮像装置 |
KR101515957B1 (ko) | 2008-09-08 | 2015-05-04 | 삼성전자주식회사 | 컬러 보간 장치와 컬러 보간 방법 |
CN101621698B (zh) * | 2009-03-10 | 2013-08-07 | 北京中星微电子有限公司 | 一种彩色图像处理方法及装置 |
JP5589446B2 (ja) | 2009-09-18 | 2014-09-17 | ソニー株式会社 | 画像処理装置、撮像装置、および画像処理方法、並びにプログラム |
US20110141321A1 (en) * | 2009-12-16 | 2011-06-16 | General Instrument Corporation | Method and apparatus for transforming a lens-distorted image to a perspective image in bayer space |
US8260044B2 (en) | 2010-07-07 | 2012-09-04 | DigitalOptics Corporation Europe Limited | Reducing erroneous colors in edge areas with chromatic abberation |
CN102665030B (zh) * | 2012-05-14 | 2014-11-12 | 浙江大学 | 一种基于改进双线性的Bayer格式颜色插值方法 |
US9511708B2 (en) | 2012-08-16 | 2016-12-06 | Gentex Corporation | Method and system for imaging an external scene by employing a custom image sensor |
CN105141838B (zh) * | 2015-08-19 | 2018-08-07 | 上海兆芯集成电路有限公司 | 去马赛克方法以及使用该方法的装置 |
US10148926B2 (en) | 2015-12-07 | 2018-12-04 | Samsung Electronics Co., Ltd. | Imaging apparatus and image processing method of thereof |
CN108024100A (zh) * | 2017-12-15 | 2018-05-11 | 上海交通大学 | 基于改进边缘导向的Bayer格式图像插值方法 |
WO2021138870A1 (en) * | 2020-01-09 | 2021-07-15 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Multi-frame noise reduction method, terminal, and system |
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JP2000175208A (ja) | 1998-06-01 | 2000-06-23 | Nikon Corp | 補間処理装置および補間処理プログラムを記録した記録媒体 |
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2004
- 2004-12-30 KR KR1020040116951A patent/KR100721338B1/ko not_active IP Right Cessation
-
2005
- 2005-12-23 US US11/317,765 patent/US7710437B2/en not_active Expired - Fee Related
- 2005-12-27 JP JP2005376627A patent/JP4253655B2/ja not_active Expired - Fee Related
- 2005-12-29 EP EP05028657A patent/EP1677548A3/en not_active Withdrawn
- 2005-12-30 CN CNB2005100488177A patent/CN100521800C/zh not_active Expired - Fee Related
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KR19980036772A (ko) * | 1996-11-19 | 1998-08-05 | 김광호 | 이미지 보간방법 |
JPH11136692A (ja) | 1997-10-27 | 1999-05-21 | Nikon Corp | 補間装置 |
KR20010043406A (ko) * | 1998-05-08 | 2001-05-25 | 마츠시타 덴끼 산교 가부시키가이샤 | 고체 컬러 촬상 장치 |
JP2000175208A (ja) | 1998-06-01 | 2000-06-23 | Nikon Corp | 補間処理装置および補間処理プログラムを記録した記録媒体 |
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Also Published As
Publication number | Publication date |
---|---|
EP1677548A2 (en) | 2006-07-05 |
US20060146150A1 (en) | 2006-07-06 |
JP2006191607A (ja) | 2006-07-20 |
KR20060078646A (ko) | 2006-07-05 |
JP4253655B2 (ja) | 2009-04-15 |
CN1812595A (zh) | 2006-08-02 |
EP1677548A3 (en) | 2008-09-10 |
CN100521800C (zh) | 2009-07-29 |
US7710437B2 (en) | 2010-05-04 |
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