基于距离变换的纤维骨架提取算法分析

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1、东华人学硕卜研究生学位论文摘要ASTUDYOFDISTANCETRANSFORMBASEDFIBERSKELETONDETERMINAI，IONALGORITHMABSTRACTShaPerePresentationanddescriPtionPlaysanimPortantroleinmostcomPutervisionreseareh.SkeletondisPlayserueialinformationabouttheshaPeandhasmanyaPPlieationsinPatternrecognition，shaP

2、eanalysisandobjeetidentification.IntheresearehProPosedhere，theskeletoncaleulation15imPlementedtorealizethefiberelassifieation.Edgenodesaredetachedandtheeonnectedskeleton15obtainedbythethinningalgorithmundertheconditionthattheregionconneetion15Preserved.Thethinninga

3、lgorithm15aniterativecaleulationthatneedsheavyeomPutation.Moreover，thePreeisionofskeleton15notProvedtobesatisfactory.Distancetransformation15afundamentalcomPutationusedtodeterminethedistaneemaPforaninPutimage.Inordertoovercometheshortcomingsofthinningalgorithm，adis

4、taneetransformbasedskeletonalgorithm15ProPosedtodeterminetheProfiledfiber，5skeletonwiththe111东华人学顿l:研究生学位论文摘要minimaleoverset.Firstly，thedistaneetransformation15exeeutedforthebinaryimage.Secondly，thesetoflocalcenterPoints15deeidedaeeordingtotherelationwiththeneighbo

5、ringelements.Theedgeinformationofbinaryimage15aPPliedtobuildacorrelatedmatrixtogetherwiththelocaleenterPointset.Minimaleoverset15determinedwiththetransformalongtherowandcolumndireetions.AconnectingProcess15usedbecausethemedialPointsaregenerallyisolated.AnuPhillalgo

6、ritlunstartsfromsuchPointsthathavetheleastdistaneevalue，andadvancesalongthedirectionofthesteePestascendingforeachmedialPointandsaddlePointinthedistancemaP.TheealculationstoPswhenanotherskeletonPoint15eneountered.Theskeleton15sensitivetoboundarynoise:therefore，Proee

7、ssshouldbeaPPliedtosuPPresssuchinterference.InordertoimProvethePerformanceoftheProfiledfiberreeognitionPruningregularizationshouldbeused.TheexPerimentalresultsdemonstratethatthealgorithmProPosedinthePaPer15satisfaetoryforPerseveringofthetoPologyinformation.Theskele

8、tonalgorithmbasedondistancetransformation15aPPliedtotheelassificationofProfiledfiber.Thereeognitionration15similartothinningalgorithmbythetestuPo