醫(yī)學(xué)超聲波圖像序列的三維重建.pdf

1、北京交通大學(xué)碩士學(xué)位論文醫(yī)學(xué)超聲波圖像序列的三維重建姓名：李璐申請學(xué)位級別：碩士專業(yè)：信號與信息處理指導(dǎo)教師：肖揚20060301摘要AbstractThispapermainlydScussestheteehniqueSof出ree—djmensionalul昀soundimaging(3DUS)byrecons仃uction丘om2DimagesequenceThisresearchdirectionhasbeendrawing№m

2、endouslyattentiontheseyearsworldwide，areasofwhichmainlyinclude3Ddataacquisition，preprocessmg，analysisaf重dtle3Drocons缸uctionandrendefingThisp印ermainlyexploresanewtechniquefor也esegmentationofmedicajultraSoundgabladderimage

3、sW毫usewatershedcombinedwjthseveralmorphologicaltechniquestopresentafairlysatisfactorysegmentationresultinourⅥ，aytothree—dimensionaIultras。undimaging(3DUS)ThjsmethodautomaticallyseIectandsegmenttheprimaryobjectintheimage，

4、thusavoidthecaSesinusingsnakealgo—thrnswheRtheprioriinfo“nationuseddoesnotpushthesnaketoanappropriatesolutionNextthesepreprocessedimagesinasequcnceshouldbematchedWeproposetwokindsofmatchingmethodsbasedonthecomparabilityo

5、fthejntensityOneisbasedontheHafr主sangJepointtoextfactthelatentpointsTheotherisbyusingthesamecost—function，butthecorrespondingruleisdi腩rencIntheend，theconceptsandtenIlinologiesOfRadiaJBasisFuIlctionarepresented，folIowedby

6、anattemp￡teconstructjon3DultrasoundwiththehelpofafastmemodbynttingRBFstothepointcloudcorrespondingtoboundarypoints【Keyword】：3DUS，imagesegfnentalion，m婦rwate砷edalgofimm，contollrmatching，slicecorrespondence，3一Drecons協(xié)∞tion，