CN101015197B - 用于提高图像质量的方法和装置 - Google Patents

用于提高图像质量的方法和装置 Download PDF

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Publication number
CN101015197B
CN101015197B CN2004800436142A CN200480043614A CN101015197B CN 101015197 B CN101015197 B CN 101015197B CN 2004800436142 A CN2004800436142 A CN 2004800436142A CN 200480043614 A CN200480043614 A CN 200480043614A CN 101015197 B CN101015197 B CN 101015197B
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CN
China
Prior art keywords
vigncentre
size
vignetting
image
coeff
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Expired - Lifetime
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CN2004800436142A
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English (en)
Chinese (zh)
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CN101015197A (zh
Inventor
雅诺·尼克卡南
奥西·卡勒沃
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Nokia Technologies Oy
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Nokia Inc
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Publication of CN101015197A publication Critical patent/CN101015197A/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/401—Compensating positionally unequal response of the pick-up or reproducing head
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/387—Composing, repositioning or otherwise geometrically modifying originals
    • H04N1/3871—Composing, repositioning or otherwise geometrically modifying originals the composed originals being of different kinds, e.g. low- and high-resolution originals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
    • 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
    • H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
    • H04N25/61—Noise processing, e.g. detecting, correcting, reducing or removing noise the noise originating only from the lens unit, e.g. flare, shading, vignetting or "cos4"
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/03—Circuitry for demodulating colour component signals modulated spatially by colour striped filters by frequency separation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/02—Diagnosis, testing or measuring for television systems or their details for colour television signals

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Color Television Image Signal Generators (AREA)
  • Studio Devices (AREA)
  • Processing Of Color Television Signals (AREA)
CN2004800436142A 2004-06-07 2004-06-07 用于提高图像质量的方法和装置 Expired - Lifetime CN101015197B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FI2004/050082 WO2005122549A1 (en) 2004-06-07 2004-06-07 Method, apparatus, imaging module and program for improving image quality in a digital imaging device

Publications (2)

Publication Number Publication Date
CN101015197A CN101015197A (zh) 2007-08-08
CN101015197B true CN101015197B (zh) 2010-10-27

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Family Applications (1)

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CN2004800436142A Expired - Lifetime CN101015197B (zh) 2004-06-07 2004-06-07 用于提高图像质量的方法和装置

Country Status (5)

Country Link
US (1) US7548262B2 (enExample)
EP (2) EP2091224B1 (enExample)
JP (1) JP4520502B2 (enExample)
CN (1) CN101015197B (enExample)
WO (1) WO2005122549A1 (enExample)

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US6834807B2 (en) * 2001-07-13 2004-12-28 Hand Held Products, Inc. Optical reader having a color imager
KR100808493B1 (ko) * 2005-12-28 2008-03-03 엠텍비젼 주식회사 렌즈 셰이딩 보상 장치, 보상 방법 및 이를 이용한 이미지프로세서
US20070211154A1 (en) * 2006-03-13 2007-09-13 Hesham Mahmoud Lens vignetting correction algorithm in digital cameras
EP1962517A1 (en) * 2007-02-21 2008-08-27 STMicroelectronics (Research & Development) Limited Error reduction in image sensors
US7920171B2 (en) * 2007-05-18 2011-04-05 Aptina Imaging Corporation Methods and apparatuses for vignetting correction in image signals
US7907185B2 (en) * 2007-07-16 2011-03-15 Aptina Imaging Corporation Lens correction logic for image sensors
JP5197083B2 (ja) 2008-03-21 2013-05-15 キヤノン株式会社 撮像装置及びその制御方法
JP5424679B2 (ja) * 2009-03-18 2014-02-26 キヤノン株式会社 撮像装置及び信号処理装置
US8976240B2 (en) 2009-04-22 2015-03-10 Hewlett-Packard Development Company, L.P. Spatially-varying spectral response calibration data
US9172856B2 (en) * 2011-03-29 2015-10-27 Microsoft Technology Licensing, Llc Folded imaging path camera
US8823841B2 (en) * 2012-06-20 2014-09-02 Omnivision Technologies, Inc. Method and apparatus for correcting for vignetting in an imaging system
EP3182697A1 (en) * 2015-12-15 2017-06-21 Thomson Licensing A method and apparatus for correcting vignetting effect caused on an image captured by lightfield cameras
WO2018070793A1 (en) * 2016-10-12 2018-04-19 Samsung Electronics Co., Ltd. Method, apparatus, and recording medium for processing image
EP3564747B1 (en) * 2016-12-27 2021-10-27 Hitachi Astemo, Ltd. Imaging device and imaging method
JP6819629B2 (ja) 2018-02-23 2021-01-27 オムロン株式会社 画像センサ
US10754149B2 (en) 2018-04-20 2020-08-25 Amd (Shanghai) Co., Ltd. Efficient radial lens shading correction
DE102018115991B4 (de) 2018-07-02 2023-12-07 Basler Ag Digitale schaltung zur korrektur eines vignettierungseffekts in werten von pixeln eines bildes einer elektronischen kamera
CN114205487B (zh) 2020-08-28 2025-12-02 超威半导体公司 内容自适应镜头阴影校正方法和装置
US12260534B2 (en) 2022-04-26 2025-03-25 Communications Test Design, Inc. Method to detect camera blemishes

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1898697A (zh) * 2003-12-30 2007-01-17 卓然公司 用于修改图像场数据的技术

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4265029B2 (ja) * 1999-05-11 2009-05-20 株式会社ニコン 画像取り込み装置および交換レンズ
US6833862B1 (en) * 1999-06-30 2004-12-21 Logitech, Inc. Image sensor based vignetting correction
NO20000656A (no) * 2000-02-09 2001-07-09 Knut Krogstad Digital korreksjonsmodul for videoprojektor
FI113132B (fi) * 2001-06-28 2004-02-27 Nokia Corp Menetelmä ja laite kuvanparannukseen
JP2003069818A (ja) * 2001-08-27 2003-03-07 Noritsu Koki Co Ltd 画像処理方法、画像処理プログラム、および画像処理プログラムを記録した記録媒体
US7233352B2 (en) * 2002-06-20 2007-06-19 Hewlett-Packard Development Company, L.P. Method and apparatus for color non-uniformity correction in a digital camera
US7151560B2 (en) * 2002-06-20 2006-12-19 Hewlett-Packard Development Company, L.P. Method and apparatus for producing calibration data for a digital camera
US7408576B2 (en) 2002-08-16 2008-08-05 Zoran Corporation Techniques for modifying image field data as a function of radius across the image field
JP3680827B2 (ja) * 2002-08-27 2005-08-10 コニカミノルタフォトイメージング株式会社 デジタルカメラ
EP1564681A1 (en) * 2004-02-13 2005-08-17 Dialog Semiconductor GmbH Vignetting compensation algorithm
JP2005277618A (ja) * 2004-03-24 2005-10-06 Casio Comput Co Ltd 撮像装置、シェーディング補正装置、及びシェーディング補正方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1898697A (zh) * 2003-12-30 2007-01-17 卓然公司 用于修改图像场数据的技术

Also Published As

Publication number Publication date
JP2008502187A (ja) 2008-01-24
CN101015197A (zh) 2007-08-08
US7548262B2 (en) 2009-06-16
WO2005122549A1 (en) 2005-12-22
EP2091224B1 (en) 2012-06-06
EP1772007A1 (en) 2007-04-11
EP2091224A1 (en) 2009-08-19
JP4520502B2 (ja) 2010-08-04
US20050270402A1 (en) 2005-12-08

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Effective date of registration: 20160118

Address after: Espoo, Finland

Patentee after: NOKIA TECHNOLOGIES OY

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Patentee before: NOKIA Corp.

CX01 Expiry of patent term
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Granted publication date: 20101027