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ID:55296233
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页数:16页
时间:2020-05-09
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1、英文原文WatershedAlgorithmBasedonMorphologyforDentalX-RayImagesSegmentationAbstract—Anewwatershedalgorithmbasedonmathematicalmorphology,whichcanbeappliedtodentalX-rayimagessegmentation,isproposedinthepaper.Inordertoseparateeachtoothandimprovetheseriousproblemofover-segmentationof
2、traditionalwatershedalgorithm,weapplytheprocessingbasedonmorphologytogettheimagesenhancedbeforewatershedalgorithm.First,usingthetop-hat-bottom-hattransformationtoamplifythecontrastofforegroundandbackgroundandremovenoises.Andthenerosionprocedureisusedtoweakenthedegreeofadhesio
3、nbetweenteeth.Hole-fillingcanhelptoeliminatesomeunnecessarysplit-linewhichcancausethephenomenonofwrongsegmentation.Finallyweapplythewatershedalgorithmusingdistancetransformationofthebinaryimagetogetthesegmentationresult.Fromtheexperimentresults,wecanseethatthisalgorithmcansep
4、arateteethaccuratelyandovercometheover-segmentationefficientlycomparedwithtraditionalmethod.Keywords-watershedalgorithm;mathematicalmorphology;dentalX-rayimage;imagesegmentation;distancetransformationI.INTRODUCTIONDentalbiometricsisanappropriatemethodtoidentifydeceasedindivid
5、ualsofdisasterssuchascriminalcases,blastsandTsunamis,becauseteethwiththeirdentalworksareveryresistanttomodestforceeffectsandhightemperatureandchemicalcorrosionandalsopossessgoodbiometricproperties.Anditalsoprovidesimportantinformationindentalmedicaltreatmentforfurtheranalysis
6、togetthediagnostic.Imagesegmentationasaprecursorhasbeenseenasoneofthemostimportantaspectoftheentireprocesslikepatternrecognition.Itgivesclarityinformationandthelevelstosubdivisiondependontheproblembeingsolved.Imagesegmentationasanindispensablemethodisappliedtoextractquantitat
7、iveinformationofspecifictissues,alsoasthepremiseandasteptorealizetheprocessingofvisualization.Anditisstillachallengingproblemincomputervisionandimageprocessing.Areasobtainedbysegmentationarebothindependentfromeachother.Andalltheareasbelongtooneregionwillsharethespecialconsist
8、ency.Theobjectiveofsegmentationistolocalizetheregionofeachtoothinden
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