SG190451A1 - Auto-focus image system - Google Patents

Auto-focus image system Download PDF

Info

Publication number
SG190451A1
SG190451A1 SG2013044201A SG2013044201A SG190451A1 SG 190451 A1 SG190451 A1 SG 190451A1 SG 2013044201 A SG2013044201 A SG 2013044201A SG 2013044201 A SG2013044201 A SG 2013044201A SG 190451 A1 SG190451 A1 SG 190451A1
Authority
SG
Singapore
Prior art keywords
auto
image system
focus image
focus
image
Prior art date
Application number
SG2013044201A
Inventor
Hiok Nam Tay
Original Assignee
Hiok Nam Tay
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
Priority claimed from PCT/IB2010/055649 external-priority patent/WO2011070514A1/en
Application filed by Hiok Nam Tay filed Critical Hiok Nam Tay
Publication of SG190451A1 publication Critical patent/SG190451A1/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/13—Edge detection
    • 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
    • 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
    • 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
    • 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
    • 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
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
    • 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
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10141—Special mode during image acquisition
    • G06T2207/10148—Varying focus
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Studio Devices (AREA)
  • Automatic Focus Adjustment (AREA)
  • Image Analysis (AREA)
  • Image Processing (AREA)
  • Focusing (AREA)
SG2013044201A 2010-12-07 2011-06-09 Auto-focus image system SG190451A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/IB2010/055649 WO2011070514A1 (en) 2009-12-07 2010-12-07 Auto-focus image system
PCT/IB2011/052515 WO2012076992A1 (en) 2010-12-07 2011-06-09 Auto-focus image system

Publications (1)

Publication Number Publication Date
SG190451A1 true SG190451A1 (en) 2013-07-31

Family

ID=44628863

Family Applications (1)

Application Number Title Priority Date Filing Date
SG2013044201A SG190451A1 (en) 2010-12-07 2011-06-09 Auto-focus image system

Country Status (9)

Country Link
EP (1) EP2649787A1 (en)
JP (1) JP2014504375A (en)
AU (1) AU2011340207A1 (en)
CA (1) CA2820856A1 (en)
DE (1) DE112011104256T5 (en)
GB (1) GB2501414A (en)
MX (1) MX2013006517A (en)
SG (1) SG190451A1 (en)
WO (1) WO2012076992A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017125799A1 (en) * 2017-11-06 2019-05-09 Carl Zeiss Industrielle Messtechnik Gmbh Reduction of picture disturbances in pictures
CN112969027B (en) * 2021-04-02 2022-08-16 浙江大华技术股份有限公司 Focusing method and device of electric lens, storage medium and electronic equipment
CN114815121A (en) * 2022-02-22 2022-07-29 湖北三赢兴光电科技股份有限公司 Quick focusing method and system for camera module

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3482013B2 (en) * 1993-09-22 2003-12-22 ペンタックス株式会社 Optical system focus evaluation method, adjustment method, adjustment device, and chart device
JP2002189164A (en) * 2000-12-21 2002-07-05 Minolta Co Ltd Optical system controller, optical system control method, and recording medium
JP3555607B2 (en) * 2001-11-29 2004-08-18 ミノルタ株式会社 Auto focus device
EP1624672A1 (en) * 2004-08-07 2006-02-08 STMicroelectronics Limited A method of determining a measure of edge strength and focus
US7343047B2 (en) * 2004-09-22 2008-03-11 Hewlett-Packard Development Company, L.P. Systems and methods for arriving at an auto focus Figure of Merit
US8264591B2 (en) * 2007-10-22 2012-09-11 Candela Microsystems (S) Pte. Ltd. Method and system for generating focus signal
WO2010061352A2 (en) * 2008-11-26 2010-06-03 Hiok Nam Tay Auto-focus image system
US8457431B2 (en) * 2009-12-07 2013-06-04 Hiok Nam Tay Auto-focus image system

Also Published As

Publication number Publication date
EP2649787A1 (en) 2013-10-16
GB2501414A (en) 2013-10-23
GB201311741D0 (en) 2013-08-14
DE112011104256T5 (en) 2014-02-13
CA2820856A1 (en) 2012-06-14
JP2014504375A (en) 2014-02-20
WO2012076992A1 (en) 2012-06-14
MX2013006517A (en) 2013-12-06
AU2011340207A1 (en) 2013-07-18

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