適于三維眼前節(jié)分析系統(tǒng)的標定方法研究.pdf

1、電子科技大學碩士學位論文適于三維眼前節(jié)分析系統(tǒng)的標定方法研究姓名：羅銀恒申請學位級別：碩士專業(yè)：光學指導教師：吳健20100525ABSTRACTABSTRACTEyeisoneofthemostimportantorgansofsenseResearchshowsthat80％oftheinformationgainedoutsideisfromoureyesHealthyeyesplayaverygreatroleinthequal

2、ityofourlivesThestructureofeyeanteriorsegmentisdirectlyrelatedtomanydiseases，andthesediseasesCalldirectlydisplayontheparametricvariationofeyeanteriorsegmentThereforetheseparametersareimportantondiagnosing，treatingmethod，

3、theobservationOndiseasedevelopmentandtheevaluationoftreatinginclinicalpracticeConsequentlyweplanfordevelopmenta3DanalyticsystemabouteyeanteriorsegmentbasedonScheimpflugimagingtheoryToachieveourresearchgoal，thecalibration

4、methodsforsystemwereresearchedwhichlaythefoundationfornextresearchAccordingtoprincipleofdigitalcloserangephotogrammetry(DCRP)，homologouspoints(HPs)arethebasicdataforsystemHPsareoriginatedfrom3Dobjectpointand2DimagepointT

5、hemainissuesofcalibrationwereresearchedinthisdissertationSomemethodswereimprovedandsomearenovellyproposed，whichareincluding：1：ThecalibrationofcameraisfullybasedonDCRPmethodThegeomtricparametersarefirstlyestimatedusingDir

6、ectLinearTransformmethodThenthebundleadjustmentisappliedtooptimizeparameters，forbetteraccuracyTheprojectoriscalibratedinthesamewayasavirtualcamerabycapturingthecalibrationpointsintheprojectingplaneusingtwo—dimensionalpha

7、sedemodulation2：Atechniqueofauto—detectingfeatureobjectWasimplementedwhichisusedinlabel—orientationmethodThetechniqueCansupplyhi曲precisionsparseHPsforgeomtriccalibrationOtsubinarymethodwasusedtoseparateellipticalblock，la

8、belingconnectedcomponentswithUnion—Findstructure3：The3Dimagewasdisplayedinthevisualinterfaceaccordingtocalibratedparametersandobject’ScoordinatesTheprecisionofresultwasanalysed，whichshowstheefficiencyandstabilityofpropos