MX340988B - Sistema de imágenes de enfoque automatico. - Google Patents
Sistema de imágenes de enfoque automatico.Info
- Publication number
- MX340988B MX340988B MX2013014257A MX2013014257A MX340988B MX 340988 B MX340988 B MX 340988B MX 2013014257 A MX2013014257 A MX 2013014257A MX 2013014257 A MX2013014257 A MX 2013014257A MX 340988 B MX340988 B MX 340988B
- Authority
- MX
- Mexico
- Prior art keywords
- generator
- gradients
- edge
- focus signal
- auto
- Prior art date
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
-
- 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
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Optics & Photonics (AREA)
- Image Processing (AREA)
- Image Analysis (AREA)
- Studio Devices (AREA)
- Automatic Focus Adjustment (AREA)
- Focusing (AREA)
Abstract
Un sistema de imagen de auto enfoque, que incluye una matriz de píxeles unida a un generador de señal de enfoque. La matriz de píxeles capta una imagen que tiene una pluralidad de bordes. El generador genera una señal de enfoque que es una función de una pluralidad de medidas de borde-nitidez medidas a partir de cada una de la pluralidad de bordes. El generador compara una secuencia de gradientes a través del borde con una o más secuencias de referencia de los gradientes y/o curvas de referencia definidas por los datos recuperados de una memoria no volátil. El generador determina rechazar o des-enfatizar el borde para contribuir a la señal de enfoque sobre la base de búsqueda de disimilitud entre la secuencia de gradientes con las secuencias de referencia o las curvas de referencia más allá de un umbral predeterminado.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/IB2011/052524 WO2012168766A1 (en) | 2011-06-09 | 2011-06-09 | Auto-focus image system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MX2013014257A MX2013014257A (es) | 2014-02-27 |
| MX340988B true MX340988B (es) | 2016-08-03 |
Family
ID=44509487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2013014257A MX340988B (es) | 2011-06-09 | 2011-06-09 | Sistema de imágenes de enfoque automatico. |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP2719162B1 (es) |
| JP (1) | JP5920608B2 (es) |
| CN (1) | CN103650473B (es) |
| BR (1) | BR112013031316A2 (es) |
| CA (1) | CA2838821A1 (es) |
| DE (1) | DE112011105320T5 (es) |
| GB (1) | GB2505598A (es) |
| MX (1) | MX340988B (es) |
| SG (1) | SG195323A1 (es) |
| WO (1) | WO2012168766A1 (es) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101733028B1 (ko) | 2016-05-30 | 2017-05-08 | 경북대학교 산학협력단 | 영상대조에 따른 에지 변위량 예측 방법 |
| KR101868483B1 (ko) * | 2016-10-13 | 2018-07-23 | 경북대학교 산학협력단 | 영상 대조에 따른 두개의 에지 블러 파라미터 예측 방법 |
| EP3503528B1 (en) | 2017-12-21 | 2020-10-07 | Axis AB | Determination of a contrast value for a digital image |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07311025A (ja) * | 1994-05-17 | 1995-11-28 | Komatsu Ltd | ３次元形状検査装置 |
| US20030123704A1 (en) * | 2001-05-30 | 2003-07-03 | Eaton Corporation | Motion-based image segmentor for occupant tracking |
| JP3555607B2 (ja) * | 2001-11-29 | 2004-08-18 | ミノルタ株式会社 | オートフォーカス装置 |
| JP4661084B2 (ja) * | 2004-05-20 | 2011-03-30 | セイコーエプソン株式会社 | ミスフォーカス判定方法およびこれに関するプログラム |
| JP2006115446A (ja) * | 2004-09-14 | 2006-04-27 | Seiko Epson Corp | 撮影装置、及び画像評価方法 |
| CN1892401A (zh) * | 2006-05-25 | 2007-01-10 | 南京大学 | 针对虹膜图像捕捉的时频域多阶段自动对焦方法 |
| JP4743773B2 (ja) * | 2006-06-01 | 2011-08-10 | コニカミノルタセンシング株式会社 | エッジ検出方法、装置、及びプログラム |
| JP5353141B2 (ja) * | 2008-09-18 | 2013-11-27 | 株式会社ニコン | プログラム、カメラ、画像処理装置、及び画像の合焦度算出方法 |
| WO2010036249A1 (en) * | 2008-09-24 | 2010-04-01 | Nikon Corporation | Autofocus technique utilizing gradient histogram distribution characteristics |
| CN101860680B (zh) * | 2009-04-08 | 2011-12-21 | 鸿富锦精密工业（深圳）有限公司 | 影像处理装置及其影像处理方法 |
| JP2011003124A (ja) * | 2009-06-22 | 2011-01-06 | Sony Corp | 画像処理装置および画像処理プログラム |
| BR112012013721A2 (pt) * | 2009-12-07 | 2016-03-15 | Hiok Nam Tay | sistema de imagem de auto-focagem |
-
2011
- 2011-06-09 JP JP2014514159A patent/JP5920608B2/ja not_active Expired - Fee Related
- 2011-06-09 CA CA2838821A patent/CA2838821A1/en not_active Abandoned
- 2011-06-09 DE DE112011105320.7T patent/DE112011105320T5/de not_active Withdrawn
- 2011-06-09 BR BR112013031316A patent/BR112013031316A2/pt not_active IP Right Cessation
- 2011-06-09 CN CN201180071472.0A patent/CN103650473B/zh not_active Expired - Fee Related
- 2011-06-09 SG SG2013090196A patent/SG195323A1/en unknown
- 2011-06-09 WO PCT/IB2011/052524 patent/WO2012168766A1/en active Application Filing
- 2011-06-09 MX MX2013014257A patent/MX340988B/es active IP Right Grant
- 2011-06-09 EP EP11735546.1A patent/EP2719162B1/en not_active Not-in-force
- 2011-06-09 GB GB1321654.4A patent/GB2505598A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE112011105320T5 (de) | 2014-04-03 |
| JP2014521990A (ja) | 2014-08-28 |
| EP2719162A1 (en) | 2014-04-16 |
| WO2012168766A8 (en) | 2014-01-30 |
| CN103650473B (zh) | 2018-09-04 |
| MX2013014257A (es) | 2014-02-27 |
| GB2505598A (en) | 2014-03-05 |
| WO2012168766A1 (en) | 2012-12-13 |
| CN103650473A (zh) | 2014-03-19 |
| SG195323A1 (en) | 2013-12-30 |
| GB201321654D0 (en) | 2014-01-22 |
| EP2719162B1 (en) | 2016-08-31 |
| JP5920608B2 (ja) | 2016-05-25 |
| CA2838821A1 (en) | 2012-12-13 |
| BR112013031316A2 (pt) | 2016-11-29 |
| WO2012168766A9 (en) | 2014-07-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Grant or registration |