SG190755A1 - Auto-focus image system - Google Patents

Auto-focus image system Download PDF

Info

Publication number
SG190755A1
SG190755A1 SG2013044219A SG2013044219A SG190755A1 SG 190755 A1 SG190755 A1 SG 190755A1 SG 2013044219 A SG2013044219 A SG 2013044219A SG 2013044219 A SG2013044219 A SG 2013044219A SG 190755 A1 SG190755 A1 SG 190755A1
Authority
SG
Singapore
Prior art keywords
auto
image system
focus image
focus
image
Prior art date
Application number
SG2013044219A
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/IB2010/055641 external-priority patent/WO2011070513A1/en
Application filed by Hiok Nam Tay filed Critical Hiok Nam Tay
Publication of SG190755A1 publication Critical patent/SG190755A1/en

Links

Classifications

    • 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
    • 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
    • H04N23/673—Focus control based on electronic image sensor signals based on contrast or high frequency components of image signals, e.g. hill climbing method

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Optics & Photonics (AREA)
  • Studio Devices (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)
  • Image Analysis (AREA)
  • Image Processing (AREA)
SG2013044219A 2010-12-07 2011-06-09 Auto-focus image system SG190755A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/IB2010/055641 WO2011070513A1 (en) 2009-12-07 2010-12-07 Auto-focus image system
PCT/IB2011/052529 WO2012076993A1 (en) 2010-12-07 2011-06-09 Auto-focus image system

Publications (1)

Publication Number Publication Date
SG190755A1 true SG190755A1 (en) 2013-07-31

Family

ID=44511103

Family Applications (1)

Application Number Title Priority Date Filing Date
SG2013044219A SG190755A1 (en) 2010-12-07 2011-06-09 Auto-focus image system

Country Status (8)

Country Link
EP (1) EP2649788A1 (en)
JP (1) JP6057086B2 (en)
AU (1) AU2011340208A1 (en)
CA (1) CA2820847A1 (en)
DE (1) DE112011104233T5 (en)
MX (1) MX2013006516A (en)
SG (1) SG190755A1 (en)
WO (1) WO2012076993A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111769904B (en) * 2020-06-23 2021-08-17 电子科技大学 Detection method for parallel transmission of multiple reflection devices in backscatter communication system
CN112529876B (en) * 2020-12-15 2023-03-14 天津大学 Method for detecting edge defects of contact lenses

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH066661A (en) * 1992-06-19 1994-01-14 Canon Inc Focusing detector
JP2002189164A (en) * 2000-12-21 2002-07-05 Minolta Co Ltd Optical system controller, optical system control method, and recording medium
JP4334179B2 (en) * 2002-03-07 2009-09-30 シャープ株式会社 Electronic camera
JP4493416B2 (en) * 2003-11-26 2010-06-30 富士フイルム株式会社 Image processing method, apparatus, and program
JP2006024193A (en) * 2004-06-07 2006-01-26 Fuji Photo Film Co Ltd Image correction device, image correction program, image correction method and image correction system
WO2010061250A1 (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
EP2649788A1 (en) 2013-10-16
CA2820847A1 (en) 2012-06-14
MX2013006516A (en) 2013-12-12
DE112011104233T5 (en) 2013-12-12
AU2011340208A1 (en) 2013-07-18
WO2012076993A1 (en) 2012-06-14
JP2014513809A (en) 2014-06-05
JP6057086B2 (en) 2017-01-11

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