医学图像三维重建及交互体视化技术研究

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1、北京交通大学硕士学位论文医学图像三维重建及交互体视化技术研究姓名：谷妤嫔申请学位级别：硕士专业：计算机应用技术指导教师：范辉20061201ABSTRACTMedicalImagingVisualizationisakindoftechnologythatcanprocess3DVolumeDatawhichcomesfrom2Ddigitaltomographicimages，andtransformsthemedicalimagingdatato3Dgraphicsandimages，whichcarbedisplayedoncomput

2、ersereentoshow3Dappearanceofhumanpeople,bymcal：1sofcomputertechnologyandhumanvisioiLThistechnologyisoneofthemostimportanthotspotsinthecurrentmedicalimagingresearch,itisnotonlyimportanttotheoryresearch,butalsovaluableandhelpfulforclinicdiagnosingandSOOILInthisthesis，basedOll

3、theneedformedicalimagingprocessingandthecurrentconditionofmedicalequipmentinchinaandthecharacteristicsoftheCTorMRIimagedata,thisthesismakesresearchintothedifferentmethods(surfacerendingandvolumerending)ofMedicalImagingVisualization,theiradvantagesanddisadvantagesandtheaccel

4、eratingalgorithmsofvolumerendering．Puttingemphasisonraycastingalgorithm，theprocessofvisualizationisstudied，includingmedicalimagingpreprocessingandraycastingvolumerending,andhoweverystepisrealizedduringtheprocessingisanalyzed．Thealgorithmsonimagingpreprocessingincludeimagefi

5、ltering,imageenhancement．hierarchicalinterpolationandImageregistration．Ref醯tothedisadvantageofraycastingalgorithm,theconstructionspeedofwhichistooslow,someacceleratingalgorithmsarepresentedtoimpmveeverystepofraycastingandtherenderingspeedhasbeenaccelerated．Atpresentitishard

6、togetinternalinformationof3Dmodelfrommost3D-constructionsystem,theinteractivevolumerenderingtechniqueisstudied,andthemethodsofdisplayingclippingplanefromanyangleandsegmentingspecifiedorganarepresented．Atlastaninteractivemedical3D-constructionsystemisdesignedandimplementedin

7、theenvironmentofVC++6．0byUSCofOpenGLtechnology．InthissystemthecolTectnessandhighefficiencyoftheacceleratingalgorithmsforraycastingarevalidatedandthefunctionofdisplayingclippingplaneof3Dvolumedatafromanyangleandsegmentingspecifiedorganareachieved．Inthisthesis，wenotonlydiscus

8、sthedominatingcontentsofmedicalimaging3D—constructionandvisualizationtechnology,bu