GB2495423B - Auto-focus image system - Google Patents

Auto-focus image system

Info

Publication number
GB2495423B
GB2495423B GB1222597.5A GB201222597A GB2495423B GB 2495423 B GB2495423 B GB 2495423B GB 201222597 A GB201222597 A GB 201222597A GB 2495423 B GB2495423 B GB 2495423B
Authority
GB
United Kingdom
Prior art keywords
auto
image system
focus image
focus
image
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.)
Expired - Fee Related
Application number
GB1222597.5A
Other versions
GB201222597D0 (en
GB2495423A (en
Inventor
Hiok Nam Tay
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority claimed from JP2010122100A external-priority patent/JP5435362B2/en
Publication of GB201222597D0 publication Critical patent/GB201222597D0/en
Publication of GB2495423A publication Critical patent/GB2495423A/en
Application granted granted Critical
Publication of GB2495423B publication Critical patent/GB2495423B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/10—Power-operated focusing
    • 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
    • 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
    • H04N23/63—Control of cameras or camera modules by using electronic viewfinders
    • H04N23/631—Graphical user interfaces [GUI] specially adapted for controlling image capture or setting capture parameters
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Human Computer Interaction (AREA)
  • Automatic Focus Adjustment (AREA)
  • Image Analysis (AREA)
GB1222597.5A 2010-05-26 2010-05-27 Auto-focus image system Expired - Fee Related GB2495423B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US34869910P 2010-05-26 2010-05-26
JP2010122100A JP5435362B2 (en) 2010-05-26 2010-05-27 Autofocus image system
GB1200088.1A GB2484223B (en) 2010-05-26 2010-05-27 Auto-focus image system

Publications (3)

Publication Number Publication Date
GB201222597D0 GB201222597D0 (en) 2013-01-30
GB2495423A GB2495423A (en) 2013-04-10
GB2495423B true GB2495423B (en) 2013-10-16

Family

ID=51168466

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1400861.9A Withdrawn GB2510495A (en) 2010-05-26 2010-05-27 Auto-focus image system
GB1222597.5A Expired - Fee Related GB2495423B (en) 2010-05-26 2010-05-27 Auto-focus image system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1400861.9A Withdrawn GB2510495A (en) 2010-05-26 2010-05-27 Auto-focus image system

Country Status (1)

Country Link
GB (2) GB2510495A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4652931A (en) * 1983-12-29 1987-03-24 Asahi Kogaku Kogyo Kabushiki Kaisha Optical system for TTL automatic focusing video camera
US4694151A (en) * 1984-07-06 1987-09-15 Kabushiki Kaisha Cosina Autofocusing zoom lens system with beam splitter prism for single lens reflex cameras
US5880455A (en) * 1995-08-08 1999-03-09 Nikon Corporation Focal position detection apparatus having a light reflecting member with plural reflecting films
US20070206937A1 (en) * 2006-03-01 2007-09-06 Nikon Corporation Focus adjustment device, imaging device and focus adjustment method
US20090256927A1 (en) * 2008-04-11 2009-10-15 Olympus Corporation Image capturing apparatus
US20090278947A1 (en) * 2005-12-16 2009-11-12 Mark Alan Schultz Imager and Imaging Method for Digital Cinematography
WO2010061250A1 (en) * 2008-11-26 2010-06-03 Hiok-Nam Tay Auto-focus image system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4018218B2 (en) * 1997-12-25 2007-12-05 キヤノン株式会社 Optical apparatus and distance measuring point selection method
JP2005269604A (en) * 2004-02-20 2005-09-29 Fuji Photo Film Co Ltd Imaging device, imaging method, and imaging program
JP4759329B2 (en) * 2005-06-23 2011-08-31 Ｈｏｙａ株式会社 Imaging device having autofocus function
US8264591B2 (en) * 2007-10-22 2012-09-11 Candela Microsystems (S) Pte. Ltd. Method and system for generating focus signal
US8457431B2 (en) * 2009-12-07 2013-06-04 Hiok Nam Tay Auto-focus image system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4652931A (en) * 1983-12-29 1987-03-24 Asahi Kogaku Kogyo Kabushiki Kaisha Optical system for TTL automatic focusing video camera
US4694151A (en) * 1984-07-06 1987-09-15 Kabushiki Kaisha Cosina Autofocusing zoom lens system with beam splitter prism for single lens reflex cameras
US5880455A (en) * 1995-08-08 1999-03-09 Nikon Corporation Focal position detection apparatus having a light reflecting member with plural reflecting films
US20090278947A1 (en) * 2005-12-16 2009-11-12 Mark Alan Schultz Imager and Imaging Method for Digital Cinematography
US20070206937A1 (en) * 2006-03-01 2007-09-06 Nikon Corporation Focus adjustment device, imaging device and focus adjustment method
US20090256927A1 (en) * 2008-04-11 2009-10-15 Olympus Corporation Image capturing apparatus
WO2010061250A1 (en) * 2008-11-26 2010-06-03 Hiok-Nam Tay Auto-focus image system

Also Published As

Publication number Publication date
GB201222597D0 (en) 2013-01-30
GB2510495A (en) 2014-08-06
GB2495423A (en) 2013-04-10
GB201400861D0 (en) 2014-03-05

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20190527