Volume image registration by template matching

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1、ImageandVisionComputing19+2001)821±832www.elsevier.com/locate/imavisVolumeimageregistrationbytemplatematchingL.Dinga,A.Goshtasbya,*,M.SatterbaDepartmentofComputerScienceandEngineering,WrightStateUniversity,Dayton,OH45435,USAbWallace-KetteringNeuroScienceInstitute,KetteringMedicalCenter,Ketteri

2、ng,OH45429,USAReceived14March2000;revised30October2000;accepted3December2000AbstractAtemplate-matchingapproachtoregistrationofvolumetricimagesisintroduced.Theprocessautomaticallyselectsadozenhighlydetailedanduniquetemplates+cubicorsphericalsubvolumes)fromoneimageandlocatesthetemplatesinanother

3、imageofthesamescene.Thecentroidsofthecorrespondingtemplatesareusedascorrespondingcontrolpointsandthebestfourcorrespondencesthatminimizeanerrorcriterionareusedtodeterminethetranslationalandrotationalparametersneededtoregistertheimages.Useofdifferentsimilaritymeasuresintemplatematchinganddetermi

4、nationofcoordinatesofcorrespondingcontrolpointswithsubpixelaccuracyarealsodiscussed.q2001ElsevierScienceB.V.Allrightsreserved.Keywords:Imageregistration;Volumetricimage;Templatematching;Similaritymeasure;Multimodalimages1.IntroductionPETimageofglucosemetabolismofthesamepatient.Bothimageshavebe

5、enacquiredonthesameday.NotethattheImageregistrationistheprocessofdeterminingthecorre-intensitypatternsobservedinthelesioninthetwomodal-spondencebetweenallpointsintwoimagesofthesameitiesdonotcorrelatewell,whilepatternsinthenormalbrainscene.Thisprocessisrequiredinmanymedicalimageareasaresimilar.

6、analysisapplications.Forexample,itisoftenneededtoTherighttwocolumnsshowthepre-andpost-surgicalregistermultimodalityimagestoenablemaximaldiagnosticMRimagesofapatientwithabraintumor.Inthepost-sensitivityandspeci®city.Registrationofcerebralanatomicsurgicalimage,localbraingeometryhasbeenconsiderab

7、lyimagesfromanMRscannerwithbiochemicalimagesfromalteredduetotheresection.Inthiscase,wedonotwanttoaPETscannerproducesauniquedatasetthatisusefulinuseinformationatandnearthetumor/resectionsitetodeter-bothdiagnosisandtherapy.minetheregistra