基于形态学的分水岭算法牙科x射线图像分割

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1、英文原文WatershedAlgorithmBasedonMorphologyforDentalX-RayImagesSegmentationAbstract—Anewwatershedalgorithmbasedonmathematicalmorphology,whichcanbeappliedtodentalX-rayimagessegmentation,isproposedinthepaper.Inordertoseparateeachtoothandimprovetheseriousproblemofover-segmentation

2、oftraditionalwatershedalgorithm,weapplytheprocessingbasedonmorphologytogettheimagesenhancedbeforewatershedalgorithm.First,usingthetop-hat-bottom-hattransformationtoamplifythecontrastofforegroundandbackgroundandremovenoises.Andthenerosionprocedureisusedtoweakenthedegreeofadh

3、esionbetweenteeth.Hole-fillingcanhelptoeliminatesomeunnecessarysplit-linewhichcancausethephenomenonofwrongsegmentation.Finallyweapplythewatershedalgorithmusingdistancetransformationofthebinaryimagetogetthesegmentationresult.Fromtheexperimentresults,wecanseethatthisalgorithm

4、canseparateteethaccuratelyandovercometheover-segmentationefficientlycomparedwithtraditionalmethod.Keywords-watershedalgorithm;mathematicalmorphology;dentalX-rayimage;imagesegmentation;distancetransformationI.INTRODUCTIONDentalbiometricsisanappropriatemethodtoidentifydecease

5、dindividualsofdisasterssuchascriminalcases,blastsandTsunamis,becauseteethwiththeirdentalworksareveryresistanttomodestforceeffectsandhightemperatureandchemicalcorrosionandalsopossessgoodbiometricproperties.Anditalsoprovidesimportantinformationindentalmedicaltreatmentforfurth

6、eranalysistogetthediagnostic.Imagesegmentationasaprecursorhasbeenseenasoneofthemostimportantaspectoftheentireprocesslikepatternrecognition.Itgivesclarityinformationandthelevelstosubdivisiondependontheproblembeingsolved.Imagesegmentationasanindispensablemethodisappliedtoextr

7、actquantitativeinformationofspecifictissues,alsoasthepremiseandasteptorealizetheprocessingofvisualization.Anditisstillachallengingproblemincomputervisionandimageprocessing.Areasobtainedbysegmentationarebothindependentfromeachother.Andalltheareasbelongtooneregionwillsharethe

8、specialconsistency.Theobjectiveofsegmentationistolocalizetheregionofeachtoothinden