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WO2008011989A3 - Method and apparatus for calibrating an electronic camera - Google Patents

Method and apparatus for calibrating an electronic camera Download PDF

Info

Publication number
WO2008011989A3
WO2008011989A3 PCT/EP2007/006153 EP2007006153W WO2008011989A3 WO 2008011989 A3 WO2008011989 A3 WO 2008011989A3 EP 2007006153 W EP2007006153 W EP 2007006153W WO 2008011989 A3 WO2008011989 A3 WO 2008011989A3
Authority
WO
WIPO (PCT)
Prior art keywords
bright
camera
dark
calibrating
plane
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.)
Ceased
Application number
PCT/EP2007/006153
Other languages
German (de)
French (fr)
Other versions
WO2008011989A2 (en
Inventor
Andreas Floeter
Dirk Braun
Marcus Drath
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BST GmbH
Original Assignee
BST International GmbH
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 BST International GmbH filed Critical BST International GmbH
Priority to EP07785996A priority Critical patent/EP2050282A2/en
Publication of WO2008011989A2 publication Critical patent/WO2008011989A2/en
Publication of WO2008011989A3 publication Critical patent/WO2008011989A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/028—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring lateral position of a boundary of the object
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2101/00—Still video cameras

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

The invention relates to a method for calibrating an electronic camera or a sensor, in particular a line camera, in which a series of image points or pixels on the projection plane (P) of the camera can be associated with consecutive numbers and the measurement region which can be detected by the optics of the camera is divided by means of a calibrating part into bright/dark transitions with known spacing between each other, wherein each bright/dark transition is associated with a particular pixel number, the determined bright/dark transitions are evaluated as to which ones of the bright/dark transitions of possibly a plurality of planes are to be associated with an upper and which are to be associated with a lower plane of the calibrating part, and a calculation is carried out as to where a bright/dark transition on the lower plane is to be placed if only the bright/dark transition, which is located perpendicularly above it, on the upper plane can be seen due to skewed observation through the camera.
PCT/EP2007/006153 2006-07-25 2007-07-11 Method and apparatus for calibrating an electronic camera Ceased WO2008011989A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07785996A EP2050282A2 (en) 2006-07-25 2007-07-11 Method and apparatus for calibrating an electronic camera

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006034350.6 2006-07-25
DE102006034350A DE102006034350A1 (en) 2006-07-25 2006-07-25 Method and device for calibrating an electronic camera

Publications (2)

Publication Number Publication Date
WO2008011989A2 WO2008011989A2 (en) 2008-01-31
WO2008011989A3 true WO2008011989A3 (en) 2008-04-17

Family

ID=38859250

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/006153 Ceased WO2008011989A2 (en) 2006-07-25 2007-07-11 Method and apparatus for calibrating an electronic camera

Country Status (3)

Country Link
EP (1) EP2050282A2 (en)
DE (1) DE102006034350A1 (en)
WO (1) WO2008011989A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009012997A1 (en) * 2009-03-13 2010-09-16 Bst International Gmbh Method and device for measuring the position of the edge of a material web
DE102014206580A1 (en) 2014-04-04 2015-10-08 Texmag Gmbh Vertriebsgesellschaft MATERIAL BAND AS CALIBRATION TEMPLATE
DE112014006640A5 (en) 2014-05-06 2017-02-09 Carl Zeiss Industrielle Messtechnik Gmbh Method and device for calibrating imaging optics for metrological applications
CN106982370B (en) * 2017-05-03 2018-07-06 武汉科技大学 A kind of camera high-precision calibration scaling board and the method for realizing calibration
CN108428252A (en) * 2018-03-14 2018-08-21 河南科技大学 A kind of single line array camera distortion scaling method
CN120997277B (en) * 2025-10-22 2026-01-16 中国科学院长春光学精密机械与物理研究所 Method and system for calculating parallelism of biplane joint optimization of detector

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0797362A1 (en) * 1996-03-21 1997-09-24 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Test system for optical and electro-optical viewing systems
US5978081A (en) * 1995-12-19 1999-11-02 Cognex Corporation Multiple field of view calibration plate for use in semiconductor manufacturing
DE10359361A1 (en) * 2003-09-09 2005-12-15 Clauß, Ulrich, Dr.-Ing. Obtaining high quality panorama photographs from camera with planar focusing geometry, by storing image in spherical coordinate system and performing coordinate transformation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7429999B2 (en) * 2004-05-24 2008-09-30 CENTRE DE RECHERCHE INDUSTRIELLE DU QUéBEC Camera calibrating apparatus and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5978081A (en) * 1995-12-19 1999-11-02 Cognex Corporation Multiple field of view calibration plate for use in semiconductor manufacturing
EP0797362A1 (en) * 1996-03-21 1997-09-24 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Test system for optical and electro-optical viewing systems
DE10359361A1 (en) * 2003-09-09 2005-12-15 Clauß, Ulrich, Dr.-Ing. Obtaining high quality panorama photographs from camera with planar focusing geometry, by storing image in spherical coordinate system and performing coordinate transformation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TSAI R Y: "A VERSATILE CAMERA CALIBRATION TECHNIQUE FOR HIGH-ACCURACY 3D MACHINE VISION METROLOGY USING OFF-THE-SHELF TV CAMERAS AND LENSES", IEEE JOURNAL OF ROBOTICS AND AUTOMATION, IEEE INC. NEW YORK, US, vol. RA-3, no. 4, August 1987 (1987-08-01), pages 323 - 344, XP000891213 *

Also Published As

Publication number Publication date
DE102006034350A1 (en) 2008-01-31
WO2008011989A2 (en) 2008-01-31
EP2050282A2 (en) 2009-04-22

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