第46卷第1期2023年2月电子器件ChineseJournalofElectronDevicesVol.46No.1Feb．2023项目来源:河南省高等学校重点科研计划项目(14B510026)收稿日期:2021－11－07修改日期:2022－01－03WeldMagnetoOpticalImagingEnhancementBasedonImprovedParticleFilter*LIUXuliang*(SchoolofElectricalEngineering，YellowＲiverConservancyTechnicalInstitute，KaifengHe’nan475000，China)Abstract:Inordertoimprovetheeffectofweldmagnetoopticalimaging，theimprovedparticlefiltermethodisproposed．Firstly，Fara-daymagnetoopticaleffectisestablished，magnetoopticalsensorisusedtodetectthemagnetoinductionintensityoftheverticalcompo-nentofthemagnetofieldintheformofmagnetoopticalimaging，andthebrightnesschangeofweldimageisanalyzed．Secondly，Un-scentedKalmanfilteralgorithmisusedtoupdatetheparticles，theparticleswithsmallweightarediscarded，andthetotalnumberoftheparticlesissupplementedthroughadjustingthereplicationratetoavoidparticledepletion．Comparisonthresholdissettoperformparti-cleimportancesampling．Finally，theincompleteBetafunctionisusedtoenhancetheweldarea，whichisbuiltbythemaximum，middleandminimumvaluesofthegraylevel，sothattheenhancementeffectisimprovedeffectively．Theexperimentalresultsshowthattheclosertotheweldcenterandedge，thesmallerthemagneticinduction，andthepeakvalueofmagneticinductionappearsbetweenpeakvalueofmagneticinductionappearsbetweentheweldcenterandedge，0．8mmfromtheweldcenter．Theeffectofmagnetoopticalima-gingbecomesclearerwiththeincreasingofmagneticfieldintensity，andtherangeofgrayvalueofmagnetoopticalimagingincreases．Thelargerthemagnetovoltage，themoreappearentthechangeofthegrayvalueofthetransitionregionwhichisclosetotheweldposi-tion．ThecontourofthetransitionzoneoftheenhancedweldimagegottenthroughtheproposedmethodisclearatthepoleNandSal-ternatingmagneticfield．Keywords:particlefilter;weldline;magnetoopticalimaging;enhancementEEACC:5140;6135doi:10．3969/j．issn．1005－9490．2023．01．017基于改进粒子滤波的焊缝磁光成像增强*刘许亮*(黄河水利职业技术学院电气工程学院，河南开封475000)摘要:为了...
