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1、OOLSASURVEYONINDUSTRIALVISIONSYSTEMS,APPLICATIONSANDT1EliasN.Malamas,EuripidesG.M.Petrakis2,MichalisZervakisDepartmentofElectronicandComputerEngineeringTechnicalUniversityofCreteChaniaCreteGreeceemalamas@systems.tuc.gr,petrakis@ced.tuc.gr,michalis@systems.tuc.grLaurentPetit,Jean-DidierLegatMic
2、roelectronicsLaboratoryUniversiteCatholiquedeLouvenLouven-La-NeuveBelgiumpetit@dice.ucl.ac.be,legat@dice.ucl.ac.beABSTRACTThestateoftheartinmachinevisioninspectionandacriticaloverviewofreal-worldapplicationsarepresentedinthispaper.Twoindependentwaystoclassifyapplicationsareproposed,oneaccordin
3、gtotheinspectedfeaturesoftheindustrialproductorprocessandtheotheraccordingtotheinspectionindependentcharacteristicsoftheinspectedproductorprocess.Themostcontemporarysoftwareandhardwaretoolsfordevelopingindustrialvisionsystemsarereviewed.Finally,underthelightofrecentadvancesinimagesensors,softw
4、areandhardwaretechnology,importantissuesanddirectionsfordesigninganddevelopingindustrialvisionsystemsareidentifiedanddiscussed.Keywords:Machinevision,automatedvisualinspection,imageprocessing,imageanalysis.1INTRODUCTIONMachinevisionprovidesinnovativesolutionsinthedirectionofindustrialautomatio
5、n[1].Aplethoraofindustrialactivitieshavebenefitedfromtheapplicationofmachinevisiontechnologyonmanufacturingprocesses.Theseactivitiesinclude,amongothers,delicateelectronicscomponentmanufacturing[2],qualitytextileproduction[3],metalproductfinishing[4],glassmanufacturing[5],machineparts[6],printi
6、ngproducts[7]andgranitequalityinspection[8],integratedcircuitsmanufacturing[9]andmanyothers.Machinevisiontechnologyimproves1ThisworkwassupportedbyprojectHIPER(BE97-5084)underprogrammeBRIGHT-EURAMoftheEuropeanUnion(EU).2Correspondingauthor.productivityandqualitymanagementandprovidesacompetitive
7、advantagetoindustriesthatemploythistechnology.1.1OVERVIEWONINDUSTRIALVISIONSYSTEMSTraditionally,visualinspectionandqualitycontrolareperformedbyhumanexperts[10].Althoughhumanscandothejobbetterthanmachinesinmanycases,theyareslowerthanthem
