1、大連理工大學碩士學位論文用相移技術實現(xiàn)數(shù)字全息的三維重構姓名：朱釩申請學位級別：碩士專業(yè)：測試計量技術與儀器指導教師：胡家升20091216大連理工大學碩士學位論文The3DReconstructionofDigitalHolographybyMethodofPhase—shiftingAbstractDigitalholographyisamixofopticalholography，computertechnologyandelec

2、tronicimagingtechnologyBasedonthetheoryofopticalholography，digitalholographyutilizesCCDarraywhichisusedfortherecordingmediumtorecordhologramsandfulfillsthenumericalreconstructionoftheoriginalobjectbycomputerwhichimplemen

3、tsfullnumericalrecording，storingandreconstructingprocessinrealtimeDigitalholographyCanobtainphaseandamplitudeoftheobjectatthesametimewhichisabigadvantagecomparedtoothertechniquesSoithasmanyapplicationsinopticalmeasuremem

4、、imagerecognitionandencryption、microscopyandSOonIntroducingphaseshiftingtechnologytodigitalholographyCanreconstructoriginalobjectimagedirectlyItIalnovestheinfluenceoftheconjugatedimageandzeroorderdiffractedimage，increase

5、sthepixelnumbersofthereconstructedimage，andimprovesthequalityofthereconstructedimageSoithasmoreapplicationsillmanyfieldsThispaperisconcentratedonthetheoreticalandexperimentalstudiesonthephase—shiftingdigitalholographyThe

6、maintasksareasfollows：(1)Firstlytheholography0瞳esummarizedthenthehistory、developmentandapplicationofdigitalholographyareexpoundedTheprincipleofdigitalholographyisintroducedandinlinestepiscomparedwitllofflinesetupindetail

7、(2)Secondly，Thedevelopmentandthemainapplicationsofphase—shiftingdigitalholographyaresummarizedAndthefundamentaltheoryofphaseshiftingdigitalholographyandsomemostcommonlyusedphaseshiftingalgorithmsofeliminatingtheconjugate

8、imageandthezero—orderimageareintroducedilldetailBesides，theexperimentalsetupofphaseshiftingdigitalholographyisdescribed(3)Becausephaseshiftingdigitalholographyishighlydemandingfortheprecisionofthephase—shiftingdevice，the

9、morephaseshiftsareoperatedthegreatererrorsmayberes_IlltedinSothesinglephaseshiRingdigitalholographyisstudiedandtheopticalsetupiscompletedteconstructthe2Do巧ectandthe3Dmicroscalereflectedo場ect(4)Theinfluenceofdifferentphas

10、eshiftinganglesofreferencewaveinrecordingonthequalityofthereconstructedimageisinvestigatedReasonsresultingintheerrorsarcanalysedtheoretically，andaniterativemethodisusedtoeliminatethephase—shiftingerrorbycalculatingasumth