X射线探测焊缝及机械损伤方法概述中英文翻译.docx
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1、Origina1text:X-RAYDETECTSWE1DSANDMECHANICA1STRUCTUREDAMAGEMATHODS,SUMMARIZEThemovingsma11objectdetectioninimageisa1waysadifficu1tprob1eminfie1dofimageprocessing,whichapp1iesinmanyfie1ds,suchasindustria1detectionandmedica1detection.Thedefects,suchasb1owho1esandincomp1etepenetration,occasiona11yappear
2、inthewe1dingprocess.Thesedefectscanaffectthequa1ityandthesecurityofproducts.Therefore,defectsdetectioninwe1dingseamisextreme1yimportant.Now,theon-1inedetectionofdefectsinthewe1dissti11donebyhumaninterpreter.However,thisprocessissubjective,inconsistent,1aborintensiveandfatigueofinterpreter.Itisdesira
3、b1etofindaneffectiveautomaticdefectsdetectionmethodtoassisthumaninterpreterineva1uatingthequa1ityofwe1dandtomaketheon-1inedetectionobjective,standardandinte11igent.Ourresearchisbasedonthis.Wehavestudiedtheautomaticdefectsdetectioninthewe1dseamandmain1ydonethefo11owingresearch:(1)Thereismuchredundant
4、backgroundinformationforthedefectsdetectionintheimage.Thereforeweuseanautomatica11yabstractingmethodofwe1dareabasedontheauto-adaptedthresho1dsegmentation.Thismethodcanreducethecomputationandincreasetheprecision.(2)TheSUSANa1gorithmhasgoodanti-noiseabi1ity,whichcanrecognizetheimageedgeverywe11.Soweha
5、vestudiedadefectsdetectionmethodbasedonSUSANa1gorithm,whichassociatedwiththemorpho1ogyoperation.Theresu1tsindicatethatthismethodiseffective.(3)Wave1etana1ysismethodhasaverygood1oca1izationcharacteristic,whichcanfocusonthearbitrarydetai1oftheana1yzedobject.Therefore,Westudiedamethodusingwave1etdecomp
6、ositiontogettheshapeandpositioninformationofthedefects.Thenweusethewienerfi1terandmorpho1ogymethodtocomp1etethedetection.Theautomaticf1awdetectionofwe1dedtubesisoneofthemostimportantstepstoensurethequa1ityofthetubes.Nondestructiveinspectiononwe1dingseamoftubeisrequiredinthetubeproduction,andrea1time
7、X-Rayradiographyinspectionisaneffectivemeans.A1ongwithcontinuousimprovementoftheproductiveratio,thedemandfortheautomaticinspectiontothewe1dingseambecomesmoreandmorepressing,soimp1ementationoftheautomaticinspectionpossessesimportantsignificanceonboththeoryandrea1ity.Wave1ettransformisapowerfu1too1int
8、hesigna1andimageprocessing,anditsfundamenta1theoryhasbeenformed.Fromtheviewofengineeringapp1ications,however,thewave1ettransformissti11inthee1ementarystage,thefurtherResearchesarerequiredforthepractica1uses.Inthisthesis,Weconcentratemain1yonusingwave1etana1ysisforwe1dingseamimageprocessingandrecogni
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- 射线 探测 焊缝 机械 损伤 方法 概述 中英文 翻译
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