NO20004821L - Method and system for monitoring or scanning an object, material or the like - Google Patents

Method and system for monitoring or scanning an object, material or the like

Info

Publication number
NO20004821L
NO20004821L NO20004821A NO20004821A NO20004821L NO 20004821 L NO20004821 L NO 20004821L NO 20004821 A NO20004821 A NO 20004821A NO 20004821 A NO20004821 A NO 20004821A NO 20004821 L NO20004821 L NO 20004821L
Authority
NO
Norway
Prior art keywords
value
monitoring
camera
difference
scanning
Prior art date
Application number
NO20004821A
Other languages
Norwegian (no)
Other versions
NO20004821D0 (en
Inventor
Goeran Aasemyr
Original Assignee
Photonic Systems Ab
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20410844&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NO20004821(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Photonic Systems Ab filed Critical Photonic Systems Ab
Publication of NO20004821D0 publication Critical patent/NO20004821D0/en
Publication of NO20004821L publication Critical patent/NO20004821L/en

Links

Classifications

    • 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
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/8901—Optical details; Scanning details
    • G01N21/8903—Optical details; Scanning details using a multiple detector array
    • 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
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Image Processing (AREA)
  • Image Analysis (AREA)

Abstract

En fremgangsmåte for å monitorere eller skanne et objekt, materiale eller liknende med hjelp av et kamera (2) som er bevegelig i forhold til objektet eller materialet, lagres data registrert av kameraet sekvensielt som pikselverdi. En referanseverdi fastlegges fra ett. eller flere valgte, lagrede piksler. Differansen mellom verdien til det faktiske pikselet og referanseverdien fastlegges, etter hvilket endringer i objektet eller materialet påvises fra nevnte differanse. Et system for slik monitorering eller skanning innbefatter et kamera og en datalagirngsenhet for sekvensiell lagring av registrerte data som pikselverdier. En referanseproduserende enhet (10) er anordnet for å produsere en referanseverdi fra verdien eller verdiene til ett eller flere valgte, lagrede piksler, og en sammenlignings-enhet (6, 8) er anordnet til å danne differansen mellom verdien til det faktiske pikseletA method of monitoring or scanning an object, material or the like by means of a camera (2) which is movable in relation to the object or material, data recorded by the camera is stored sequentially as a pixel value. A reference value is determined from one. or more selected, stored pixels. The difference between the value of the actual pixel and the reference value is determined, according to which changes in the object or material are detected from said difference. A system for such monitoring or scanning includes a camera and a data storage device for sequentially storing recorded data as pixel values. A reference producing unit (10) is arranged to produce a reference value from the value or values of one or more selected stored pixels, and a comparison unit (6, 8) is arranged to form the difference between the value of the actual pixel

NO20004821A 1998-04-02 2000-09-26 Method and system for monitoring or scanning an object, material or the like NO20004821L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9801170A SE9801170L (en) 1998-04-02 1998-04-02 Method and system for monitoring or scanning an object, material or the like
PCT/SE1999/000541 WO1999051969A1 (en) 1998-04-02 1999-03-31 A method and system for monitoring or scanning an object, material or the like

Publications (2)

Publication Number Publication Date
NO20004821D0 NO20004821D0 (en) 2000-09-26
NO20004821L true NO20004821L (en) 2000-12-04

Family

ID=20410844

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20004821A NO20004821L (en) 1998-04-02 2000-09-26 Method and system for monitoring or scanning an object, material or the like

Country Status (6)

Country Link
EP (1) EP1086368A1 (en)
JP (1) JP2002510815A (en)
CA (1) CA2324112A1 (en)
NO (1) NO20004821L (en)
SE (1) SE9801170L (en)
WO (1) WO1999051969A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0101374L (en) 2001-04-19 2002-10-20 Svante Bjoerk Ab Optical inspection method and apparatus
CN109027514A (en) * 2018-08-17 2018-12-18 江苏火禾信息技术有限公司 A kind of underground piping detection device and method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4277803A (en) * 1980-05-12 1981-07-07 Fuji Electric Co., Ltd. Automatic product checking system
NL8401416A (en) * 1984-05-03 1985-12-02 Thomassen & Drijver DEVICE FOR DETECTING HOLDERS WITH DEVIATING PROPERTIES.
GB2248934B (en) * 1990-09-17 1994-11-30 Fmc Corp Automatic windowing for article recognition
JPH04319651A (en) * 1991-04-19 1992-11-10 Inax Corp Method for inspecting tile unit
JPH0820375B2 (en) * 1991-04-19 1996-03-04 株式会社イナックス Tile unit inspection method
FI101327B1 (en) * 1996-09-19 1998-05-29 Valtion Teknillinen ON-line method for determining the wood-bark ratio from the mass flow

Also Published As

Publication number Publication date
SE9801170L (en) 1999-10-03
EP1086368A1 (en) 2001-03-28
WO1999051969A1 (en) 1999-10-14
CA2324112A1 (en) 1999-10-14
JP2002510815A (en) 2002-04-09
SE9801170D0 (en) 1998-04-02
NO20004821D0 (en) 2000-09-26

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Legal Events

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