JP5219865B2 - 撮像装置及び焦点制御方法 - Google Patents

撮像装置及び焦点制御方法 Download PDF

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Publication number
JP5219865B2
JP5219865B2 JP2009022965A JP2009022965A JP5219865B2 JP 5219865 B2 JP5219865 B2 JP 5219865B2 JP 2009022965 A JP2009022965 A JP 2009022965A JP 2009022965 A JP2009022965 A JP 2009022965A JP 5219865 B2 JP5219865 B2 JP 5219865B2
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Japan
Prior art keywords
focus detection
focus
pixels
imaging
defocus amount
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Expired - Fee Related
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JP2009022965A
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English (en)
Japanese (ja)
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JP2009217252A (ja
JP2009217252A5 (enExample
Inventor
全 江川
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Canon Inc
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Canon Inc
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Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2009022965A priority Critical patent/JP5219865B2/ja
Priority to CN2009801026025A priority patent/CN101918873B/zh
Priority to PCT/JP2009/052452 priority patent/WO2009102044A1/en
Priority to US12/745,564 priority patent/US8730373B2/en
Priority to EP09710089.5A priority patent/EP2247975B1/en
Publication of JP2009217252A publication Critical patent/JP2009217252A/ja
Publication of JP2009217252A5 publication Critical patent/JP2009217252A5/ja
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Expired - Fee Related legal-status Critical Current
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/34—Systems for automatic generation of focusing signals using different areas in a pupil plane
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals
    • G02B7/365—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals by analysis of the spatial frequency components of the image
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32—Means for focusing
    • G03B13/34—Power focusing
    • G03B13/36—Autofocus systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/67—Focus control based on electronic image sensor signals
    • H04N23/672—Focus control based on electronic image sensor signals based on the phase difference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/67—Focus control based on electronic image sensor signals
    • H04N23/673—Focus control based on electronic image sensor signals based on contrast or high frequency components of image signals, e.g. hill climbing method
    • 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
    • H04N25/70—SSIS architectures; Circuits associated therewith
    • H04N25/703—SSIS architectures incorporating pixels for producing signals other than image signals
    • H04N25/704—Pixels specially adapted for focusing, e.g. phase difference pixel sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2209/00—Details of colour television systems
    • H04N2209/04—Picture signal generators
    • H04N2209/041—Picture signal generators using solid-state devices
    • H04N2209/042—Picture signal generators using solid-state devices having a single pick-up sensor
    • H04N2209/045—Picture signal generators using solid-state devices having a single pick-up sensor using mosaic colour filter

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Studio Devices (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
JP2009022965A 2008-02-13 2009-02-03 撮像装置及び焦点制御方法 Expired - Fee Related JP5219865B2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2009022965A JP5219865B2 (ja) 2008-02-13 2009-02-03 撮像装置及び焦点制御方法
CN2009801026025A CN101918873B (zh) 2008-02-13 2009-02-09 成像设备
PCT/JP2009/052452 WO2009102044A1 (en) 2008-02-13 2009-02-09 Image forming apparatus
US12/745,564 US8730373B2 (en) 2008-02-13 2009-02-09 Image forming apparatus
EP09710089.5A EP2247975B1 (en) 2008-02-13 2009-02-09 Image forming apparatus

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2008032349 2008-02-13
JP2008032349 2008-02-13
JP2009022965A JP5219865B2 (ja) 2008-02-13 2009-02-03 撮像装置及び焦点制御方法

Publications (3)

Publication Number Publication Date
JP2009217252A JP2009217252A (ja) 2009-09-24
JP2009217252A5 JP2009217252A5 (enExample) 2012-03-15
JP5219865B2 true JP5219865B2 (ja) 2013-06-26

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JP2009022965A Expired - Fee Related JP5219865B2 (ja) 2008-02-13 2009-02-03 撮像装置及び焦点制御方法

Country Status (5)

Country Link
US (1) US8730373B2 (enExample)
EP (1) EP2247975B1 (enExample)
JP (1) JP5219865B2 (enExample)
CN (1) CN101918873B (enExample)
WO (1) WO2009102044A1 (enExample)

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Publication number Publication date
EP2247975A1 (en) 2010-11-10
JP2009217252A (ja) 2009-09-24
US20100302433A1 (en) 2010-12-02
WO2009102044A1 (en) 2009-08-20
EP2247975B1 (en) 2018-04-11
US8730373B2 (en) 2014-05-20
EP2247975A4 (en) 2014-04-16
CN101918873A (zh) 2010-12-15
CN101918873B (zh) 2012-07-18

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