WO2012067374A3 - Camera module and method for correcting lens shading thereof - Google Patents

Camera module and method for correcting lens shading thereof Download PDF

Info

Publication number
WO2012067374A3
WO2012067374A3 PCT/KR2011/008510 KR2011008510W WO2012067374A3 WO 2012067374 A3 WO2012067374 A3 WO 2012067374A3 KR 2011008510 W KR2011008510 W KR 2011008510W WO 2012067374 A3 WO2012067374 A3 WO 2012067374A3
Authority
WO
WIPO (PCT)
Prior art keywords
lens shading
shading correction
dfov
image
unit
Prior art date
Application number
PCT/KR2011/008510
Other languages
French (fr)
Other versions
WO2012067374A2 (en
Inventor
Jinwook Hyun
Original Assignee
Lg Innotek Co., Ltd.
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 Lg Innotek Co., Ltd. filed Critical Lg Innotek Co., Ltd.
Publication of WO2012067374A2 publication Critical patent/WO2012067374A2/en
Publication of WO2012067374A3 publication Critical patent/WO2012067374A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
    • H04N25/61—Noise processing, e.g. detecting, correcting, reducing or removing noise the noise originating only from the lens unit, e.g. flare, shading, vignetting or "cos4"
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
    • 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
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/80—Geometric correction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Studio Devices (AREA)
  • Color Television Image Signal Generators (AREA)

Abstract

Disclosed is a camera module, the module including a memory unit having a DFOV table for storing a DFOV depending on a focal length and a lens shading correction table for storing a lens shading correction function depending on a DFOV value, an image pick-up unit for measuring a focal length using an auto focusing method and acquiring an image, and an image-data correction unit for receiving image data and a focal length from the image pick-up unit, obtaining a DFOV value, selecting a lens shading correction function depending on the obtained DFOV value, and applying the selected lens shading correction function to the image data to perform lens shading correction.
PCT/KR2011/008510 2010-11-16 2011-11-09 Camera module and method for correcting lens shading thereof WO2012067374A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020100113827A KR101797080B1 (en) 2010-11-16 2010-11-16 Camera module and method for correcting lens shading thereof
KR10-2010-0113827 2010-11-16

Publications (2)

Publication Number Publication Date
WO2012067374A2 WO2012067374A2 (en) 2012-05-24
WO2012067374A3 true WO2012067374A3 (en) 2012-09-20

Family

ID=46084475

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2011/008510 WO2012067374A2 (en) 2010-11-16 2011-11-09 Camera module and method for correcting lens shading thereof

Country Status (2)

Country Link
KR (1) KR101797080B1 (en)
WO (1) WO2012067374A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9186909B1 (en) 2014-09-26 2015-11-17 Intel Corporation Method and system of lens shading color correction using block matching
CN110175503A (en) * 2019-04-04 2019-08-27 财付通支付科技有限公司 Length acquisition methods, device, settlement of insurance claim system, medium and electronic equipment
KR102232366B1 (en) * 2019-10-07 2021-03-26 (주)하이비젼시스템 Active alignment system and method for lens module

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050151985A1 (en) * 2004-01-14 2005-07-14 Fuji Xerox Co., Ltd. Image forming apparatus, image forming method and storage medium
KR20070070669A (en) * 2005-12-29 2007-07-04 엠텍비젼 주식회사 Apparatus and method for compensating of lens shading
US20080037138A1 (en) * 2006-08-10 2008-02-14 Werner Lang Wide-angle objective lens system and camera
US20100265358A1 (en) * 2009-04-16 2010-10-21 Nvidia Corporation System and method for image correction

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050151985A1 (en) * 2004-01-14 2005-07-14 Fuji Xerox Co., Ltd. Image forming apparatus, image forming method and storage medium
KR20070070669A (en) * 2005-12-29 2007-07-04 엠텍비젼 주식회사 Apparatus and method for compensating of lens shading
US20080037138A1 (en) * 2006-08-10 2008-02-14 Werner Lang Wide-angle objective lens system and camera
US20100265358A1 (en) * 2009-04-16 2010-10-21 Nvidia Corporation System and method for image correction

Also Published As

Publication number Publication date
KR20120052593A (en) 2012-05-24
WO2012067374A2 (en) 2012-05-24
KR101797080B1 (en) 2017-12-12

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