机器视觉论文(英文)

ATypicalapplicationsformachinevision(LiuZuochu,SchoolofInformationandEngineeringSouthwestUniversityofScienceandTechnology,Mianyang,China)Abstract:Thispapermainlydescribesthetypicalapplicationofthemachinevision,anditbrieflyanalysesmachinevisionfeatures,advantagesandapplicationofclassification,andparticularlyintroducestheapplicationofmachinevisiontechnologyintheprintingindustry,agriculture,industry,medical.Thebirthandapplicationofmachinevisionintheoryandpracticeareofgreatsignificance.Keyword:machinevision;labeldetection;characterrecognition;fruitqualitygrading;defectdetectionI、INTRODUCTIONInmodernautomatedproductionprocess,themachinevisionsystemhasbeenwidelyusedinconditionmonitoring,producttestingandqualitycontrolandotherfields.Thecharacterofmachinevisionsystemisthatitcanincreaseproductionflexibilityandautomation.Insomehazardousenvironmentthatisnotsuitableformanualoperationorit'sdifficulttomeettherequirementforartificialvision,it'scommonlyusedmachinevisiontoreplacetheartificialvision..Atthesametime,intheprocessofmassindustrialproduction,anartificialvisualinspectionofproductqualityalwayshaslowefficiencyandlowaccuracy.Butwithmachinevisioninspectionmethodcangreatlyimproveproductionefficiencyandthedegreeofautomation.Anditisthebasistechnologytoachievecomputerintegratedmanufacturing.Withthedevelopmentandmaturityofmachinevision,thereisnodoubtthatitwillbewidelyusedinvariousindustriesinthemodernandfuture.Machinevisionapplicationsareasfollows:1)TextileandClothing*yarnbreakdetection:*Weavinganddyeingtest*cloth,leather,shapedetection2)FoodandFood*Grainforeignbodydetection,sortingandcolorselection*Drinkliquidsdetection*productiondate,shelflifecharacterrecognition*emptybottlefillinglinebreakage,cleantestSpecialInspection*Wearandbreakagedetectioncable*VesselandpipingInspection*Speedtestrides*Detectionofdangerousequipmentonline4)Packaging*theappearanceofintegritytest*Barcode*tightnesstesting5)machinerymanufacturing*Dimensiondetectioncomponents*assemblyintegritytest*Partoftheorientationandgesturerecognition*parts,engines,chassisnumberofthesamecolorconcavecharacterrecognition6)Postsorting*PostalCodeRecognition*testpackageitems7)TheCustomsandports*fingerprint,palmprints,irisandfacerecognition*identificationofgoods*DetectionofsecurityofdangerousgoodsInaddition,machinevisionisalsowidelyusedinintegratedcircuittesting,aerospace,militarydefense,fireandroadtrafficandsoon.II、ApplicationofmachinevisiontechnologyMachinevisioninvolvesartificialintelligence,neurobiology,psychophysics,computerscience,imageprocessing,patternrecognition,andotherinterdisciplinaryfields.Itisnotonlyanextensionofthehumaneye,moreimportantly,butalsoapartofthehumanbrainfunctions.Machinevisiondoesn'tleadtoeyefatigue,andhasahigheraccuracyandspeedthanhumanthanhumaneyes.Itusesinfrared,ultraviolet,X-ray,ultrasoundandotherhightechdetectiontechnology.Italsohasitsoutstandingadvantageswheninthedetectionofintangibleobjectsandhighriskscenes.Herearesometypicalexamplesofmachinevision.A.ApplicationintheprintingindustryCurrently,machinevisionhasbeensuccessfullyappliedtodetectareasoftheprintingindustryandsignificantlyimproveproductqualityandreliabilitytoensurethattheproductionrate.Testcontent:1)Checkouttheoverallvagueprintingbarcodelabel,numbers,letters,barcodeswhicharenotclear;2)Checkoutthelettersonthelabel,barcode,numberoneortwoisnotclear,forexample,lettersprintedunclear,barcodeprintingfault;printedpatternisthesamewithinaperiodoftime;3)Checkoutlabelsizethatdoesnotmeetstherequirement,thestandardsizeis9mmX42mm;4)Thesurfaceofthematerialhasalittlereflection,thesubjectisblackandwhitepattern;5)Speed:3~4piece/s;labeliscontinuous,thelabelintervallengthis3mm;6)checkoutandremoveinferior;7)Theon-lineoroff-linedetection.Figure1ThelabelprintingqualityinspectionsystemismadeinXi'anSpringVideoTechnologyCo.,Ltdandhasbeensuccessfullyputintouse.B.ApplicationinindustryCurrently,machinevisionhasbeensuccessfullyappliedinindustrialinspectionfields,andgreatlyimprovetheproductqualityandreliabilitytoensurethattheproductionrate.Suchasproductpackaging,printqualityinspection,qualitytestingbeveragecontainers,beveragefillingtest,beveragebottlessealedtest.Testingoftimber,qualitytestingofsemiconductorintegratedblockpackage,thevolumeofsteelqualityinspection,thekeymechanicalcomponentsandotherindustrialCT[1].IntheCustoms,byusingX-rayandmachinevisiontechnology,theycouldinspectgoodsoutofthebox,therebyitgreatlyincreasingtheclearancerate,andsavingalotofmanpowerandmaterialresources.ThePrintChaomachinemadeinNanjingMintfactoryisatypicalapplicationsforthemachinevisionusedinprintingindustry.NanjingMintistheonlyBanknotePrintingandMintingMachineryFactory,andisastateexclusivecontroloftheimportantenterprises.ThedevelopmentandproductionofYBW2150Mintmachineprocessrequirementsisstringent.Toensurethereliabilityofeachproductionprocess,alltheproductsmustbe100%tested.InthelatelypublishedRMBinthefirst5inOctober2000,thesideofoneyuancoinproducedwithhigh-speedsewingmachine,itssecurityfeaturesareenhanced.Inviewofthestrictcontroloftheprodu