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WO2009066770A1 - デジタルカメラおよびデジタルカメラシステム - Google Patents

デジタルカメラおよびデジタルカメラシステム Download PDF

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Publication number
WO2009066770A1
WO2009066770A1 PCT/JP2008/071244 JP2008071244W WO2009066770A1 WO 2009066770 A1 WO2009066770 A1 WO 2009066770A1 JP 2008071244 W JP2008071244 W JP 2008071244W WO 2009066770 A1 WO2009066770 A1 WO 2009066770A1
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WO
WIPO (PCT)
Prior art keywords
image
image picking
digital camera
picking
nyquist frequency
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.)
Ceased
Application number
PCT/JP2008/071244
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English (en)
French (fr)
Inventor
Kenichi Ishiga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nikon Corp
Original Assignee
Nikon Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nikon Corp filed Critical Nikon Corp
Publication of WO2009066770A1 publication Critical patent/WO2009066770A1/ja
Priority to US12/765,566 priority Critical patent/US8259213B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/46—Systems using spatial filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
    • H04N23/12—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths with one sensor only

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Color Television Image Signal Generators (AREA)

Abstract

　デジタルカメラは、撮像面に被写体の像を結像するレンズ部と、互いに直交するｘ，ｙの２方向に画素間隔（ａ，ｂ）で格子状に配列された画素の各々に第１～第ｎ（ｎ≧２）の色成分の内、第１の色成分が少なくとも市松状に半分の密度を占め、他の色成分が残りの画素を占めているカラーフィルタが配置され、被写体像の画像信号を出力する撮像素子と、レンズ部を通過した光が撮像素子に入射する前に、（ｘ，ｙ）　座標軸に対して斜め２方向（（１／２）ａ，（１／２）ｂ）ｘ（√２／α）及び（（１／２）ａ，－（１／２）ｂ）ｘ（√２／α）への光線分離を行って、撮像素子のｘ方向のナイキスト周波数１／（２ａ）及びｙ方向のナイキスト周波数１／（２ｂ）に対してα倍の位置の空間周波数（α／（２ａ），０）と（０，α／（２ｂ））を結ぶ帯域を死滅させる被写体像の周波数変調を行う光学ローパスフィルタ部とを備え、撮像素子の画素間隔（ａ，ｂ）が共に２．５～５μｍ／ｐｉｘｅｌの範囲にあるとき、光学ローパスフィルタの死滅周波数帯域の位置を、撮像素子のナイキスト周波数に対して１．５≦α≦３．５倍の範囲に設定する。
PCT/JP2008/071244 2007-11-22 2008-11-21 デジタルカメラおよびデジタルカメラシステム Ceased WO2009066770A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/765,566 US8259213B2 (en) 2007-11-22 2010-04-22 Digital camera and digital camera system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007302777 2007-11-22
JP2007-302777 2007-11-22

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/765,566 Continuation-In-Part US8259213B2 (en) 2007-11-22 2010-04-22 Digital camera and digital camera system

Publications (1)

Publication Number Publication Date
WO2009066770A1 true WO2009066770A1 (ja) 2009-05-28

Family

ID=40667592

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/071244 Ceased WO2009066770A1 (ja) 2007-11-22 2008-11-21 デジタルカメラおよびデジタルカメラシステム

Country Status (2)

Country Link
US (1) US8259213B2 (ja)
WO (1) WO2009066770A1 (ja)

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JP4991907B2 (ja) * 2010-05-11 2012-08-08 キヤノン株式会社 画像処理装置、および、画像処理装置の制御方法
EP2676223A4 (en) 2011-02-17 2016-08-10 Eyelock Llc METHOD AND SYSTEM FOR EFFICIENT ACQUISITION OF LOCATION IMAGES AND IMAGES OF IRIS USING SINGLE SENSOR
EP2695107A4 (en) * 2011-04-06 2014-09-03 Eyelock Inc MOBILE IDENTITY PLATFORM
US9124797B2 (en) * 2011-06-28 2015-09-01 Microsoft Technology Licensing, Llc Image enhancement via lens simulation
JP6131545B2 (ja) 2012-03-16 2017-05-24 株式会社ニコン 画像処理装置、撮像装置および画像処理プログラム
WO2013136819A1 (ja) 2012-03-16 2013-09-19 株式会社ニコン 撮像素子、撮像装置および撮像システム
JP6131546B2 (ja) 2012-03-16 2017-05-24 株式会社ニコン 画像処理装置、撮像装置および画像処理プログラム
US9137526B2 (en) 2012-05-07 2015-09-15 Microsoft Technology Licensing, Llc Image enhancement via calibrated lens simulation
CN104429056B (zh) 2012-08-10 2017-11-14 株式会社尼康 图像处理方法、图像处理装置、摄像装置及图像处理程序
WO2014156202A1 (ja) 2013-03-29 2014-10-02 株式会社ニコン 画像処理装置、撮像装置および画像処理プログラム
CN105230000B (zh) 2013-05-31 2019-03-22 株式会社尼康 摄像元件以及摄像装置
CN106165398B (zh) 2014-04-04 2019-07-02 株式会社尼康 摄像元件、摄像装置以及图像处理装置
US20170034456A1 (en) * 2015-07-31 2017-02-02 Dual Aperture International Co., Ltd. Sensor assembly with selective infrared filter array
CN108702493A (zh) * 2016-03-09 2018-10-23 索尼公司 图像处理设备、图像处理方法、成像装置和程序
JP6789696B2 (ja) * 2016-06-30 2020-11-25 キヤノン株式会社 光学ローパスフィルタおよびそれを有する撮像装置、撮像ユニット
TWI703872B (zh) * 2019-05-15 2020-09-01 瑞昱半導體股份有限公司 影像色彩還原與增強電路
CN111638583B (zh) * 2020-06-15 2022-09-27 广州医软智能科技有限公司 一种自动对焦方法和装置

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Also Published As

Publication number Publication date
US20100201853A1 (en) 2010-08-12
US8259213B2 (en) 2012-09-04

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