WO2017187059A1 - Methode de reglage d'un appareil de prise de vue stereoscopique - Google Patents
Methode de reglage d'un appareil de prise de vue stereoscopique Download PDFInfo
- Publication number
- WO2017187059A1 WO2017187059A1 PCT/FR2017/050949 FR2017050949W WO2017187059A1 WO 2017187059 A1 WO2017187059 A1 WO 2017187059A1 FR 2017050949 W FR2017050949 W FR 2017050949W WO 2017187059 A1 WO2017187059 A1 WO 2017187059A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sensor
- reference object
- image
- focus
- stereoscopic camera
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/204—Image signal generators using stereoscopic image cameras
- H04N13/246—Calibration of cameras
-
- 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
-
- 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
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/204—Image signal generators using stereoscopic image cameras
- H04N13/243—Image signal generators using stereoscopic image cameras using three or more 2D image sensors
-
- 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
-
- 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
- G02B7/285—Systems for automatic generation of focusing signals including two or more different focus detection devices, e.g. both an active and a passive focus detecting device
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N2013/0074—Stereoscopic image analysis
- H04N2013/0077—Colour aspects
Definitions
- the position of the reference object in the scene defines the focus plane.
- the representative magnitude of the focus is always calculated for the same object plane.
- the process is repeated until the adjustment is complete to update the metrics.
- the focus adjustment method of a multi-sensor stereoscopic camera presented is based on the use of a reference object.
- This reference object is an object whose identification and delineation in an image can be done unambiguously in most environments. Color is a generally reliable means of doing this kind of delimitation, but a particular form or specific markers are other solutions for identifying and delimiting an object in an image.
- Figure 1 gives several examples of a reference object. In all cases, the principle is the same: the reference object offers visible features that allow an automatic system to identify the object in an image with a High success rate and delimit an area of interest in the image corresponding essentially to the object.
- a metric filter such as a Sobel filter or a Prewitt filter or a Canny filter that gives a gray level image that corresponds to the contrast of each pixel is used as a metric.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Studio Devices (AREA)
- Stereoscopic And Panoramic Photography (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/086,678 US20190104298A1 (en) | 2016-04-26 | 2017-04-21 | Method for adjusting a stereoscopic imaging device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1653692A FR3050597B1 (fr) | 2016-04-26 | 2016-04-26 | Methode de reglage d'un appareil de prise de vue stereoscopique |
FR1653692 | 2016-04-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017187059A1 true WO2017187059A1 (fr) | 2017-11-02 |
Family
ID=56119650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2017/050949 WO2017187059A1 (fr) | 2016-04-26 | 2017-04-21 | Methode de reglage d'un appareil de prise de vue stereoscopique |
Country Status (3)
Country | Link |
---|---|
US (1) | US20190104298A1 (fr) |
FR (1) | FR3050597B1 (fr) |
WO (1) | WO2017187059A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112532881B (zh) * | 2020-11-26 | 2022-07-05 | 维沃移动通信有限公司 | 图像处理方法、装置和电子设备 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5142357A (en) * | 1990-10-11 | 1992-08-25 | Stereographics Corp. | Stereoscopic video camera with image sensors having variable effective position |
GB2388896A (en) * | 2002-05-21 | 2003-11-26 | Sharp Kk | An apparatus for and method of aligning a structure |
US20100157135A1 (en) * | 2008-12-18 | 2010-06-24 | Nokia Corporation | Passive distance estimation for imaging algorithms |
US20130307938A1 (en) | 2012-05-15 | 2013-11-21 | Samsung Electronics Co., Ltd. | Stereo vision apparatus and control method thereof |
US20140160245A1 (en) | 2012-12-10 | 2014-06-12 | Mediatek Inc. | Method and apparatus for stereoscopic focus control of stereo camera |
WO2015139766A1 (fr) * | 2014-03-21 | 2015-09-24 | Huawei Technologies Co., Ltd. | Dispositif d'imagerie et procédé de mise au point automatique dans un dispositif d'imagerie, ainsi que programme d'ordinateur correspondant |
-
2016
- 2016-04-26 FR FR1653692A patent/FR3050597B1/fr active Active
-
2017
- 2017-04-21 US US16/086,678 patent/US20190104298A1/en not_active Abandoned
- 2017-04-21 WO PCT/FR2017/050949 patent/WO2017187059A1/fr active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5142357A (en) * | 1990-10-11 | 1992-08-25 | Stereographics Corp. | Stereoscopic video camera with image sensors having variable effective position |
GB2388896A (en) * | 2002-05-21 | 2003-11-26 | Sharp Kk | An apparatus for and method of aligning a structure |
US20100157135A1 (en) * | 2008-12-18 | 2010-06-24 | Nokia Corporation | Passive distance estimation for imaging algorithms |
US20130307938A1 (en) | 2012-05-15 | 2013-11-21 | Samsung Electronics Co., Ltd. | Stereo vision apparatus and control method thereof |
US20140160245A1 (en) | 2012-12-10 | 2014-06-12 | Mediatek Inc. | Method and apparatus for stereoscopic focus control of stereo camera |
WO2015139766A1 (fr) * | 2014-03-21 | 2015-09-24 | Huawei Technologies Co., Ltd. | Dispositif d'imagerie et procédé de mise au point automatique dans un dispositif d'imagerie, ainsi que programme d'ordinateur correspondant |
Also Published As
Publication number | Publication date |
---|---|
FR3050597B1 (fr) | 2019-03-29 |
US20190104298A1 (en) | 2019-04-04 |
FR3050597A1 (fr) | 2017-10-27 |
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