工業(yè)X射線檢測圖像處理關(guān)鍵技術(shù)研究.pdf

1、重慶大學(xué)碩士學(xué)位論文工業(yè)X射線檢測圖像處理關(guān)鍵技術(shù)研究姓名：劉俊敏申請學(xué)位級別：碩士專業(yè)：機械電子工程指導(dǎo)教師：王世耕20060401重慶大學(xué)碩士學(xué)位論文英文摘要IIABSTRCTDuetothespecificityhighcostofproductmaterialsstrictrequestfproductsecurityNondestructiveTestingisadoptedinindustrymanufacture.NDTc

2、etectproductsqualitywithoutdemolishingiginalshapeuseperfmance.Raytestingoccupyftypercentinindustrymanufacturetherefeitshareaveryimptantposition.Buttraditionalraytestingbasesonfilmimaginghassomedisadvantages.Fexampleitcan

3、tsatisfytherequirementsofrealtimeimagingtestingevaluation.Besidesithasanexpensivecostinconvenienceinimagemanagement.Aimingatthisproblemtheauthsstudytheimageprocessingtechnologyofdigitalxraytestingimagethoughlytapimagepro

4、cessingsoftware.Someconcreteresearchesareshownbelow:①Firstlythispaperinvestigatessomemeansthatimproveimageresolution.Atthesametimeamethodofdispersionraycontrolispresented.②Imagesmoothnessmedianfilteringisadoptedtoelimina

5、teimageyawpbesidesimagenonlineargrayscaletransfmationblurenhancementareintroducedmakeagoodeffect.Withdefectsegmentationbasedonedgedetectionthresholdionthedefectofxraytestingimageisextractedexactly.Itsprovedthatthefmeriss

6、ensitivetolocaledgethewholesegmentationeffectofthelatterisbetter.③Somecalculatingarithmeticaredesignedsuchasmultidefecttrackingfillingdefectfeatureparameters.Atthesametimeclassificationdeviceofwelddefectisplanedachieveth

7、erecognitionofwelddefect.④ThispaperhasprogrammedfimageenhancementdefectsegmentationdefectmeasurementbyVC，asoftwareofxrayinspectionimageprocessingisdeveloped.Keywds:xraytestingimagequalitycontrolimagepreprocessingdefectse