KR20000040421A - System for measuring camber of slab using pyramid image - Google Patents

System for measuring camber of slab using pyramid image Download PDF

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Publication number
KR20000040421A
KR20000040421A KR1019980056054A KR19980056054A KR20000040421A KR 20000040421 A KR20000040421 A KR 20000040421A KR 1019980056054 A KR1019980056054 A KR 1019980056054A KR 19980056054 A KR19980056054 A KR 19980056054A KR 20000040421 A KR20000040421 A KR 20000040421A
Authority
KR
South Korea
Prior art keywords
slab
camber
measuring
image
pyramid image
Prior art date
Application number
KR1019980056054A
Other languages
Korean (ko)
Other versions
KR100381099B1 (en
Inventor
Phil Ho Kim
Jun Jeong Lee
Original Assignee
Inst Of Ind Science Pohang
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 Inst Of Ind Science Pohang filed Critical Inst Of Ind Science Pohang
Priority to KR1019980056054A priority Critical patent/KR20000040421A/en
Publication of KR20000040421A publication Critical patent/KR20000040421A/en
Application granted granted Critical
Publication of KR100381099B1 publication Critical patent/KR100381099B1/ko

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/59—Transmissivity
    • G01N21/5907—Densitometers
    • G01N2021/5957—Densitometers using an image detector type detector, e.g. CCD

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE: A system for measuring a camber of a slab using a pyramid image is provided to detect the camber of the slab at a high speed by extracting and synthesizing a pyramid image using a color CCD. CONSTITUTION: A system for measuring a camber of a slab using a pyramid image includes a color CCD camera(10), an image analysis system(20) for measuring the camber using an image from the CCD camera(10), and a superior control system(30) for receiving and transmitting information on the slab(S) and the measured results. The image analysis system(20) includes a monitor(31) for displaying the measured results and a control PLC(32) for applying the measured camber to the casting system.
KR1019980056054A 1998-12-18 1998-12-18 System for measuring camber of slab using pyramid image KR20000040421A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019980056054A KR20000040421A (en) 1998-12-18 1998-12-18 System for measuring camber of slab using pyramid image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019980056054A KR20000040421A (en) 1998-12-18 1998-12-18 System for measuring camber of slab using pyramid image

Publications (2)

Publication Number Publication Date
KR20000040421A true KR20000040421A (en) 2000-07-05
KR100381099B1 KR100381099B1 (en) 2003-07-16

Family

ID=19563652

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019980056054A KR20000040421A (en) 1998-12-18 1998-12-18 System for measuring camber of slab using pyramid image

Country Status (1)

Country Link
KR (1) KR20000040421A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107726990A (en) * 2017-09-18 2018-02-23 西安电子科技大学 The collection of dot matrix grid image and recognition methods in a kind of Sheet metal forming strain measurement
CN113124769A (en) * 2021-04-07 2021-07-16 西安热工研究院有限公司 Method for measuring camber of large plate girder

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5868605A (en) * 1981-10-20 1983-04-23 Sumitomo Metal Ind Ltd Method for measuring camber of plate body
JPH02118408A (en) * 1988-10-28 1990-05-02 Mitsubishi Heavy Ind Ltd Camber quantity detecting method for steel structure member
JPH04204007A (en) * 1990-11-30 1992-07-24 Nkk Corp Method for measuring camber of steel plate
JP3170345B2 (en) * 1992-05-13 2001-05-28 日本電信電話株式会社 3D information extraction method
JP3413851B2 (en) * 1992-07-07 2003-06-09 オリンパス光学工業株式会社 Optical scanning image information detection device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107726990A (en) * 2017-09-18 2018-02-23 西安电子科技大学 The collection of dot matrix grid image and recognition methods in a kind of Sheet metal forming strain measurement
CN107726990B (en) * 2017-09-18 2019-06-21 西安电子科技大学 The acquisition of dot matrix grid image and recognition methods in a kind of Sheet metal forming strain measurement
CN113124769A (en) * 2021-04-07 2021-07-16 西安热工研究院有限公司 Method for measuring camber of large plate girder
CN113124769B (en) * 2021-04-07 2024-05-07 西安热工研究院有限公司 Method for measuring camber of girder

Also Published As

Publication number Publication date
KR100381099B1 (en) 2003-07-16

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