EP0909384A2 - Dispositif d'inspection visuelle - Google Patents

Dispositif d'inspection visuelle

Info

Publication number
EP0909384A2
EP0909384A2 EP97929408A EP97929408A EP0909384A2 EP 0909384 A2 EP0909384 A2 EP 0909384A2 EP 97929408 A EP97929408 A EP 97929408A EP 97929408 A EP97929408 A EP 97929408A EP 0909384 A2 EP0909384 A2 EP 0909384A2
Authority
EP
European Patent Office
Prior art keywords
linescan
location
cameras
image
objects
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.)
Withdrawn
Application number
EP97929408A
Other languages
German (de)
English (en)
Inventor
Martin Surface Inspection Limited COULTHARD
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.)
Surface Inspection Ltd
Original Assignee
Surface Inspection Ltd
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 Surface Inspection Ltd filed Critical Surface Inspection Ltd
Publication of EP0909384A2 publication Critical patent/EP0909384A2/fr
Withdrawn legal-status Critical Current

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

Definitions

  • Figure 2 is a functional block diagram illustrating the main steps in the image acquisition and processing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

Dispositif automatique d'inspection visuelle possédant deux caméras de balayage en ligne (2, 3). Ces caméras sont placées de telle sorte que l'une voit la lumière réfléchie spéculairement par la surface d'un objet à inspecter, tandis que l'autre voit la lumière réfléchie par la surface de façon diffuse. L'objet est déplacé devant les caméras de manière à balayer sa surface. Les signaux d'images émis par la caméra sont saisis et traités par un système d'imagerie (5). Les emplacements des bords de l'objet dans les images sont détectés et les données obtenues d'emplacement des bords sont utilisées afin de commander et de modifier le traitement de détection de défauts.
EP97929408A 1996-07-04 1997-07-01 Dispositif d'inspection visuelle Withdrawn EP0909384A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9614073 1996-07-04
GBGB9614073.6A GB9614073D0 (en) 1996-07-04 1996-07-04 Visual inspection apparatus
PCT/GB1997/001772 WO1998001746A1 (fr) 1996-07-04 1997-07-01 Dispositif d'inspection visuelle

Publications (1)

Publication Number Publication Date
EP0909384A2 true EP0909384A2 (fr) 1999-04-21

Family

ID=10796367

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97929408A Withdrawn EP0909384A2 (fr) 1996-07-04 1997-07-01 Dispositif d'inspection visuelle

Country Status (4)

Country Link
EP (1) EP0909384A2 (fr)
AU (1) AU3352497A (fr)
GB (1) GB9614073D0 (fr)
WO (1) WO1998001746A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT406528B (de) * 1998-05-05 2000-06-26 Oesterr Forsch Seibersdorf Verfahren und einrichtung zur feststellung, insbesondere zur visualisierung, von fehlern auf der oberfläche von gegenständen
FR2781570B1 (fr) * 1998-07-21 2000-08-25 Lorraine Laminage Dispositif de detection des defauts superficiels de bandes metalliques en defilement
GB9827377D0 (en) * 1998-12-11 1999-02-03 Surface Inspection Ltd Machine vision system and tile inspection apparatus incorporating such a system
EP1089069A3 (fr) 1999-10-01 2001-08-29 CorkOpt Limited Eclairage linéaire
IT1308026B1 (it) * 1999-12-06 2001-11-29 Ct Sviluppo Materiali Spa Sistema e metodo di acquisizione ed elaborazione di immagini perricerca di difetti superficiali e per valutazione di tono di
US6720989B2 (en) * 2000-04-19 2004-04-13 K-G Devices Corp. System and method for automatically inspecting an array of periodic elements
GB2384852A (en) * 2001-09-03 2003-08-06 Millennium Venture Holdings Lt Workpiece inspection apparatus
DE102006009482A1 (de) 2006-02-27 2007-09-06 Hauni Maschinenbau Ag Optische Kontrolle von Produkten der Tabak verarbeitenden Industrie
US8083201B2 (en) 2009-02-09 2011-12-27 The Procter & Gamble Company Apparatus and method for supporting and aligning imaging equipment on a web converting manufacturing line
ITMI20120670A1 (it) * 2012-04-23 2013-10-24 Nat Systems S R L Dispositivo e procedimento per acquisire immagini e difetti di lastre in movimento
CN107144579A (zh) * 2017-07-03 2017-09-08 苏州康鸿智能装备股份有限公司 一种3d曲面玻璃屏外观缺陷检测设备
CN109856146B (zh) * 2018-12-25 2024-10-29 深圳市智能机器人研究院 一种动态的表面缺陷光学检测系统及方法
CN109856051A (zh) * 2019-01-30 2019-06-07 广州市载道信息科技有限公司 一种图像色彩采集装置
CN111307824B (zh) * 2020-04-08 2023-03-21 山东交通学院 木质板材表面凹坑缺陷检测装置
JP2022034165A (ja) * 2020-08-18 2022-03-03 Ｔｏｗａ株式会社 検査装置、樹脂成形装置及び樹脂成形品の製造方法
CN112147073A (zh) * 2020-09-27 2020-12-29 佛山职业技术学院 一种基于双目视觉的瓷砖表面缺陷检测装置
CN115112681B (zh) * 2022-08-24 2022-11-18 苏州弘皓光电科技有限公司 一种应用于芯片表面缺陷检测的自动扫描检测装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2612482A1 (de) * 1976-03-24 1977-10-06 Hoesch Werke Ag Verfahren und einrichtung zur optischen beobachtung der oberflaeche von schnell bewegtem walzmaterial
US4223346A (en) * 1979-04-05 1980-09-16 Armco Inc. Automatic defect detecting inspection apparatus
CH656466A5 (de) * 1982-02-15 1986-06-30 Alusuisse Verfahren und vorrichtung zur oberflaechenkontrolle eines werkstoffes.
US4519041A (en) * 1982-05-03 1985-05-21 Honeywell Inc. Real time automated inspection
DE3446355C2 (de) * 1984-12-19 1986-11-06 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Optisches Fehlersuchgerät
GB2270227A (en) * 1992-08-28 1994-03-02 Surface Inspection Ltd Linescan visual monitoring system
CA2163965A1 (fr) * 1993-05-28 1994-12-08 Marie Rosalie Dalziel Appareil pour l'inspection automatique
US5672886A (en) * 1994-08-12 1997-09-30 Kabushiki Kaisha Toshiba Surface inspection system for detecting various surface faults
JPH08201047A (ja) * 1995-01-31 1996-08-09 Shin Etsu Polymer Co Ltd 床タイルの外観検査方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9801746A1 *

Also Published As

Publication number Publication date
GB9614073D0 (en) 1996-09-04
AU3352497A (en) 1998-02-02
WO1998001746A1 (fr) 1998-01-15

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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