ES2080885T3 - Medicion pasiva de distancias y autoenfoque rapido - Google Patents
Medicion pasiva de distancias y autoenfoque rapidoInfo
- Publication number
- ES2080885T3 ES2080885T3 ES91201829T ES91201829T ES2080885T3 ES 2080885 T3 ES2080885 T3 ES 2080885T3 ES 91201829 T ES91201829 T ES 91201829T ES 91201829 T ES91201829 T ES 91201829T ES 2080885 T3 ES2080885 T3 ES 2080885T3
- Authority
- ES
- Spain
- Prior art keywords
- camera
- distance
- image
- camera parameters
- values
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 238000005259 measurement Methods 0.000 title 1
- 238000000034 method Methods 0.000 abstract 4
- 230000014509 gene expression Effects 0.000 abstract 3
- 238000013527 convolutional neural network Methods 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Automatic Focus Adjustment (AREA)
- Measurement Of Optical Distance (AREA)
- Studio Devices (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Focusing (AREA)
- Image Processing (AREA)
- Image Analysis (AREA)
- Developing Agents For Electrophotography (AREA)
- Electrophonic Musical Instruments (AREA)
- Luminescent Compositions (AREA)
Abstract
SE DESCRIBEN APARATOS Y METODOS BASADOS EN TECNICAS DE PROCESAMIENTO DE SEÑALES PARA DETERMINAR LA DISTANCIA DE UN OBJETO EN RELACION CON LA CAMARA, PARA EL AUTOENFOQUE RAPIDO DE LA CAMARA Y PARA OBTENER IMAGENES ENFOCADAS A PARTIR DE IMAGENES BORROSAS PRODUCIDAS POR UNA CAMARA. EL APARATO DE LA PRESENTE INVENCION INCLUYE UNA CAMARA CARACTERIZADA POR UNA SERIE DE CUATRO PARAMETROS DE CAMARA: POSICION DEL DETECTOR DE IMAGEN O PELICULA DENTRO DE LA CAMARA, LONGITUD FOCAL DEL SISTEMA OPTICO DE LA CAMARA, EL TAMAÑO DE LA ABERTURA DE LA CAMARA Y LAS CARACTERISTICAS DEL FILTRO DE LUZ DE LA CAMARA. EN EL METODO DE LA PRESENTE INVENCION, SE GRABAN POR LO MENOS DOS IMAGENES DEL OBJETO CON VALORES DIFERENTES DE LA SERIE DE PARAMETROS DE LA CAMARA. LAS DOS IMAGENES SE CONVIERTEN A UN FORMATO ESTANDAR PARA OBTENER DOS IMAGENES NORMALIZADAS. LOS VALORES DE LOS PARAMETROS DE CAMARA Y LAS IMAGENES NORMALIZADAS SE SUSTITUYEN EN UNA ECUACION OBTENIDA AL IGUALAR DOS EXPRESIONES PARA LA IMAGEN ENFOCADA DEL OBJETO. LAS DOS EXPRESIONES PARA LA IMAGEN ENFOCADA SE BASAN EN UNA NUEVA FORMULA DE CONVOLUCION QUE REQUIERE COMPUTAR UNICAMENTE LOS DERIVADOS DE LAS IMAGENES NORMALIZADAS Y UNA SERIE DE PARAMETROS DE PESO DEPENDIENTES DE LOS PARAMETROS DE CAMARA Y LA FUNCION DE DISTRIBUCION DE PUNTOS DE LA CAMARA. EN ESPECIAL, LA FORMULA DE SUPRESION DE SINUOSIDAD NO INCLUYE NINGUNA TRANSFORMADA DE FOURIER Y POR LO TANTO LA PRESENTE INVENCION TIENE VENTAJAS SIGNIFICATIVAS CON RESPECTO AL METODO ANTERIOR. LA ECUACION QUE RESULTA DE IGUALAR DOS EXPRESIONES PARA LA IMAGEN ENFOCADA DEL OBJETO SE RESUELVE PARA OBTENER UNA SERIE DE SOLUCIONES PARA LA DISTANCIA DEL OBJETO. SE GRABA ENTONCES UNA TERCERA IMAGEN DEL OBJETO CON NUEVOS VALORES PARA LA SERIE DE PARAMETROS DE CAMARA. SE DETERMINA LA SOLUCION PARA LA DISTANCIA QUE ES CONSECUENTE CON LA TERCERA IMAGEN Y LOS NUEVOS VALORES PARA LOS PARAMETROS DE CAMARA PARA OBTENER LA DISTANCIA DEL OBJETO. BASANDOSE EN LA DISTANCIA DEL OBJETO, SE DETERMINA UNA SERIE DE VALORES PARA LOS PARAMETROS DE CAMARA PARA ENFOCAR EL OBJETO. SE AJUSTARA ENTONCES LOS PARAMETROS DE CAMARA IGUALES A ESOS VALORES PARA CONSEGUIR EL AUTOENFOQUE. DESPUES DE DETERMINAR LA DISTANCIA DEL OBJETO, SE OBTIENE LA IMAGEN ENFOCADA DEL OBJETO UTILIZANDO LA FORMULA DE CONVOLUCION. UNA VERSION GENERALIZADA DEL METODO DE DETERMINACION DE LA DISTANCIA DE UN OBJETO PUEDE UTILIZARSE PARA DETERMINAR UNO O MAS PARAMETROS DE CAMARA DESCONOCIDOS. ESTA VERSION GENERALIZADA PUEDE APLICARSE TAMBIEN A CUALQUIER SISTEMA DE MOVIMIENTO INVARIABLE LINEAL PARA UNA ESTIMACION DE PARAMETROS DEL SISTEMA Y RESTAURACION DE SEÑAL.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/551,933 US5148209A (en) | 1990-07-12 | 1990-07-12 | Passive ranging and rapid autofocusing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2080885T3 true ES2080885T3 (es) | 1996-02-16 |
Family
ID=24203264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES91201829T Expired - Lifetime ES2080885T3 (es) | 1990-07-12 | 1991-07-11 | Medicion pasiva de distancias y autoenfoque rapido |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5148209A (es) |
| EP (1) | EP0466277B1 (es) |
| JP (1) | JP3473964B2 (es) |
| AT (1) | ATE129339T1 (es) |
| CA (1) | CA2046818C (es) |
| DE (1) | DE69113889T2 (es) |
| DK (1) | DK0466277T3 (es) |
| ES (1) | ES2080885T3 (es) |
| GR (1) | GR3018270T3 (es) |
Families Citing this family (48)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3170787B2 (ja) * | 1990-05-14 | 2001-05-28 | ミノルタ株式会社 | カメラシステム |
| JP3047252B2 (ja) * | 1990-11-05 | 2000-05-29 | コニカ株式会社 | 合焦制御装置 |
| US5231443A (en) * | 1991-12-16 | 1993-07-27 | The Research Foundation Of State University Of New York | Automatic ranging and automatic focusing |
| US5365597A (en) * | 1993-06-11 | 1994-11-15 | United Parcel Service Of America, Inc. | Method and apparatus for passive autoranging using relaxation |
| US5600435A (en) * | 1995-05-24 | 1997-02-04 | Fori Automation, Inc. | Intelligent sensor method and apparatus for an optical wheel alignment machine |
| JPH09149309A (ja) * | 1995-11-24 | 1997-06-06 | Fuji Electric Co Ltd | 走行型点検ロボット |
| KR19980033400A (ko) * | 1996-10-31 | 1998-07-25 | 추후 보충 | 차량바퀴의 캠버와 캐스터의 비접촉측정방법과 장치 |
| US5973827A (en) * | 1997-03-27 | 1999-10-26 | Raytheon Company | Refractive/diffractive infrared imager and optics |
| US5867256A (en) * | 1997-07-16 | 1999-02-02 | Raytheon Ti Systems, Inc. | Passive range estimation using image size measurements |
| US7065256B2 (en) | 2001-02-08 | 2006-06-20 | Dblur Technologies Ltd. | Method for processing a digital image |
| US7773316B2 (en) | 2003-01-16 | 2010-08-10 | Tessera International, Inc. | Optics for an extended depth of field |
| KR20050107741A (ko) | 2003-01-16 | 2005-11-15 | 디-블러 테크놀로지즈 리미티드 | 이미지 인해스먼트 기능을 가진 카메라 |
| US8294999B2 (en) | 2003-01-16 | 2012-10-23 | DigitalOptics Corporation International | Optics for an extended depth of field |
| US7333652B2 (en) * | 2004-08-03 | 2008-02-19 | Sony Corporation | System and method for efficiently performing a depth map recovery procedure |
| CA2577840C (en) * | 2004-08-30 | 2015-03-10 | Commonwealth Scientific And Industrial Research Organisation | A method for automated 3d imaging |
| US7558709B2 (en) * | 2004-11-08 | 2009-07-07 | Muralidhara Subbarao | Methods and apparatus for computing the input and output signals of a linear shift-variant system |
| US20060149425A1 (en) * | 2004-12-22 | 2006-07-06 | Davis Raymond A | Motion sensor system |
| JP2006323172A (ja) * | 2005-05-19 | 2006-11-30 | Olympus Corp | 合焦情報取得装置 |
| US7577309B2 (en) * | 2005-06-18 | 2009-08-18 | Muralidhara Subbarao | Direct vision sensor for 3D computer vision, digital imaging, and digital video |
| US7822000B2 (en) * | 2005-06-30 | 2010-10-26 | Symbol Technologies, Inc. | Time division multiplexing for access ports in a wireless network |
| US7400458B2 (en) * | 2005-08-12 | 2008-07-15 | Philips Lumileds Lighting Company, Llc | Imaging optics with wavelength dependent aperture stop |
| US7929801B2 (en) * | 2005-08-15 | 2011-04-19 | Sony Corporation | Depth information for auto focus using two pictures and two-dimensional Gaussian scale space theory |
| KR100768752B1 (ko) | 2006-01-18 | 2007-10-19 | 삼성전자주식회사 | 카메라 모듈을 이용한 거리 측정 방법 |
| US20070189750A1 (en) * | 2006-02-16 | 2007-08-16 | Sony Corporation | Method of and apparatus for simultaneously capturing and generating multiple blurred images |
| US7616254B2 (en) * | 2006-03-16 | 2009-11-10 | Sony Corporation | Simple method for calculating camera defocus from an image scene |
| KR100741814B1 (ko) * | 2006-05-09 | 2007-07-23 | 경북대학교 산학협력단 | 거리 측정용 카메라의 내부 장치에 대한 변수값 보정 방법 및 카메라 보정 장치 |
| US7711201B2 (en) * | 2006-06-22 | 2010-05-04 | Sony Corporation | Method of and apparatus for generating a depth map utilized in autofocusing |
| US7962026B2 (en) * | 2006-08-08 | 2011-06-14 | Lg Electronics Inc. | Discrete automatic focusing and error correcting method |
| US20080075444A1 (en) * | 2006-09-25 | 2008-03-27 | Murali Subbarao | Blur equalization for auto-focusing |
| US8077964B2 (en) * | 2007-03-19 | 2011-12-13 | Sony Corporation | Two dimensional/three dimensional digital information acquisition and display device |
| US8280194B2 (en) * | 2008-04-29 | 2012-10-02 | Sony Corporation | Reduced hardware implementation for a two-picture depth map algorithm |
| US8218061B2 (en) * | 2008-09-04 | 2012-07-10 | Csr Technology Inc. | Apparatus, method, and manufacture for iterative auto-focus using depth-from-defocus |
| US8553093B2 (en) * | 2008-09-30 | 2013-10-08 | Sony Corporation | Method and apparatus for super-resolution imaging using digital imaging devices |
| US8194995B2 (en) * | 2008-09-30 | 2012-06-05 | Sony Corporation | Fast camera auto-focus |
| US8542313B2 (en) * | 2010-01-27 | 2013-09-24 | Csr Technology Inc. | Depth from defocus calibration |
| EP2386997A1 (en) | 2010-05-12 | 2011-11-16 | Sony Corporation | Radiometric imaging device and corresponding method |
| US8917349B2 (en) * | 2010-07-16 | 2014-12-23 | Dual Aperture, Inc. | Flash system for multi-aperture imaging |
| US8644697B1 (en) | 2010-08-13 | 2014-02-04 | Csr Technology Inc. | Method for progressively determining depth from defocused images |
| JP2012222602A (ja) * | 2011-04-08 | 2012-11-12 | Sony Corp | 撮像装置及び撮像システム |
| US9501834B2 (en) | 2011-08-18 | 2016-11-22 | Qualcomm Technologies, Inc. | Image capture for later refocusing or focus-manipulation |
| US8719440B2 (en) * | 2011-09-14 | 2014-05-06 | Mobitv, Inc. | Intelligent device media stream caching |
| US9338354B2 (en) | 2011-10-03 | 2016-05-10 | Nikon Corporation | Motion blur estimation and restoration using light trails |
| US9707892B2 (en) | 2012-04-25 | 2017-07-18 | Gentex Corporation | Multi-focus optical system |
| US9550455B2 (en) | 2012-04-25 | 2017-01-24 | Gentex Corporation | Multi-focus optical system |
| US8896747B2 (en) | 2012-11-13 | 2014-11-25 | Qualcomm Technologies, Inc. | Depth estimation based on interpolation of inverse focus statistics |
| US10237528B2 (en) | 2013-03-14 | 2019-03-19 | Qualcomm Incorporated | System and method for real time 2D to 3D conversion of a video in a digital camera |
| RU2602729C2 (ru) * | 2014-09-22 | 2016-11-20 | Общество С Ограниченной Ответственностью "Дисикон" | Способ определения расстояния до объекта при помощи камеры (варианты) |
| US20160255323A1 (en) | 2015-02-26 | 2016-09-01 | Dual Aperture International Co. Ltd. | Multi-Aperture Depth Map Using Blur Kernels and Down-Sampling |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62284314A (ja) * | 1986-06-03 | 1987-12-10 | Fuji Photo Film Co Ltd | オ−トフオ−カス方法 |
| JPS63127217A (ja) * | 1986-11-18 | 1988-05-31 | Canon Inc | 焦点検出装置 |
| US4814889A (en) * | 1987-10-07 | 1989-03-21 | General Electric Company | Automatic focussing system |
| US4965840A (en) * | 1987-11-27 | 1990-10-23 | State University Of New York | Method and apparatus for determining the distances between surface-patches of a three-dimensional spatial scene and a camera system |
-
1990
- 1990-07-12 US US07/551,933 patent/US5148209A/en not_active Expired - Lifetime
-
1991
- 1991-07-03 JP JP25829791A patent/JP3473964B2/ja not_active Expired - Fee Related
- 1991-07-11 DK DK91201829.8T patent/DK0466277T3/da active
- 1991-07-11 DE DE69113889T patent/DE69113889T2/de not_active Expired - Fee Related
- 1991-07-11 ES ES91201829T patent/ES2080885T3/es not_active Expired - Lifetime
- 1991-07-11 EP EP91201829A patent/EP0466277B1/en not_active Expired - Lifetime
- 1991-07-11 AT AT91201829T patent/ATE129339T1/de not_active IP Right Cessation
- 1991-07-11 CA CA002046818A patent/CA2046818C/en not_active Expired - Lifetime
-
1995
- 1995-11-30 GR GR950403388T patent/GR3018270T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GR3018270T3 (en) | 1996-02-29 |
| EP0466277B1 (en) | 1995-10-18 |
| CA2046818A1 (en) | 1992-01-13 |
| DK0466277T3 (da) | 1996-02-05 |
| US5148209A (en) | 1992-09-15 |
| DE69113889D1 (de) | 1995-11-23 |
| CA2046818C (en) | 2001-08-28 |
| DE69113889T2 (de) | 1996-03-21 |
| JPH05119252A (ja) | 1993-05-18 |
| EP0466277A1 (en) | 1992-01-15 |
| JP3473964B2 (ja) | 2003-12-08 |
| ATE129339T1 (de) | 1995-11-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
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