Digital Image Processing for Ophthalmolo....pdf

Digital Image Processing for Ophthalmolo....pdf

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时间:2019-03-03

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1、SeriesISSN:1930-0328ZHU•RANGAYYAN•ELSSYNTHESISLECTURESONBIOMEDICALENGINEERING&MCMorganClaypoolPublishers&SeriesEditor:JohnD.Enderle,UniversityofConnecticutDigitalImageProcessingDigitalImageProcessingforOphthalmologyDetectionoftheOpticNerveHeadXiaoluZhuandRangarajM

2、.Rangayyan,UniversityofCalgary,Alberta,CanadaforOphthalmologyAnnaL.Ells,AlbertaChildren’sHospital,Alberta,CanadaDIGITALIMAGEPROCEFundusimagesoftheretinaarecolorimagesoftheeyetakenbyspeciallydesigneddigitalcameras.Ophthalmologistsrelyonfundusimagestodiagnosevarious

3、diseasesthataffecttheeye,suchasdiabeticDetectionoftheOpticNerveHeadretinopathyandretinopathyofprematurity.Acrucialpreliminarystepintheanalysisofretinalimagesistheidentificationandlocalizationofimportantanatomicalstructures,suchastheopticnervehead(ONH),themacula,an

4、dthemajorvasculararcades.IdentificationoftheONHisanimportantinitialstepinthedetectionandanalysisoftheanatomicalstructuresandpathologicalfeaturesintheretina.Differenttypesofretinalpathologymaybedetectedandanalyzedviatheapplicationofappropriatelydesignedtechniquesof

5、digitalimageprocessingandpatternrecognition.Computer-aidedanalysisofretinalimageshasthepotentialtofacilitatequantitativeandobjectiveanalysisofretinallesionsandabnormalities.AccurateidentificationandlocalizationofretinalfeaturesandlesionsSSINGFOROcouldcontributetoim

6、proveddiagnosis,treatment,andmanagementofretinopathy.Thisbookpresentsanintroductiontodiagnosticimagingoftheretinaandanoverviewofimageprocessingtechniquesforophthalmology.Inparticular,digitalimageprocessingalgorithmsandpatternanalysistechniquesforthedetectionoftheO

7、NHaredescribed.Infundusimages,theONHusuallyappearsasabrightregion,XiaoluZhuwhiteoryellowincolor,andisindicatedastheconvergentareaofthenetworkofbloodvessels.UseofthePHTgeometricalandintensitycharacteristicsoftheONH,aswellasthepropertythattheONHrepresentstheRangaraj

8、M.Rangayyanlocationofentranceofthebloodvesselsandtheopticnerveintotheretina,isdemonstratedindevelopingHALMOLOGYthemethods.AnnaL.EllsTheimageprocessingte

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