直接数字化X线摄影系统图像处理方法研究(5)

2025-06-12

直接数字化X线摄影系统图像处理方法研究

AbStract

soIVetheenergyconVersionproblemsfIromtheX—raytothecomputer.ARerhaVing

acbjeVedmeX—rayimages,weutiIize

如nherimproVe也eimagequaIi够,so

outin-dept量lresearchaVarie够ofimageprocessingtoalgoritmst0aSsatis母theappIications.WehaVeca而edon也eDRimagingsystem,andseVemipro血Ictionshavebeen

achievedaSfoIlowing:

(1)Aproposalispresentedt0improVetheoriginalcomplicatedcontrolofthe

par锄eterson血eDRsystem.Weredesignedmeinterf孔ecircui仃yof

龇hi曲-Vol协gegeneratorbyuSingRS一232serialCOMport.T11edataandexpoSure

signalsare仃anSminedbe嘶eenpersonalcomputeralldhigh—voltagegenerator

designedtorealizethecon_trolofthe

onwitllserialmode.Aprogr锄packageishi曲-VoltexposureparametersforgeneratorofDRthePCmachine.

1jkperilnentresultssho、Ⅳnthattheproposedconsoleoperatessteadilyand“is

possibletoproVideamorecorlVenientoperationconsoleforthedirect

radiographysystem.

(2)Thesignalcon仃olstrateg),inaMa仃oxMeteorII/CameraLinkcard.basedDR

imageacquisitionsystemhasbeenstudied.Wbdesignedttleprocessingflowfor

St曲峪controlanddataprocessofmenatpanel.A1ineintervalscaIla11darea

exchangealgorithmispresentedtoprocesstheoriginalimagedataacquiredfrom

medetectorarray.TheproblemontheadjustrIlentoft11e

hasbeens01Vedsuccessf-ully,andaabnomaloriginalimageprogramisdeVeIopedforDRimage

onacquisition,displayaIldstorage.ExperimentalresultswatermodelsaIldhuman

bodiesshowmatmeInethodsdescribedhereⅥ,erecorrectandcredible,and血e

digitalx-rayimageswereValid.Ithasbeenappliedintlleclinicalpracticesofnle

DRsvstem.

(3)Based

ourontheprincipleofDRimagingonandtheimageacquisitionprocess,wetaketotllepointofViewmeenergyconVersionperspectiVefromtheX—ray

computer.AdetailedstudyhaSbeenc秭edoutontheimagenoiseproducedby

tlleinhomogenei锣ofmeX—rayfieIdandmeflatpaneldetectorpixelresponse.

Accordingt0meVariousfactors,correspor通ingcorrec缸onmethodshaVebeen

introduced.Finally,forthemlcertain够oftheX-raysystem

IVatuse,weextracta


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