WO2012067374A3 - Camera module and method for correcting lens shading thereof - Google Patents
Camera module and method for correcting lens shading thereof Download PDFInfo
- 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
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000003705 background correction Methods 0.000 abstract 5
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.
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)
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)
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 |
-
2010
- 2010-11-16 KR KR1020100113827A patent/KR101797080B1/en active IP Right Grant
-
2011
- 2011-11-09 WO PCT/KR2011/008510 patent/WO2012067374A2/en active Application Filing
Patent Citations (4)
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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