用相移技術(shù)實(shí)現(xiàn)數(shù)字全息的三維重構(gòu).pdf

1、大連理工大學(xué)碩士學(xué)位論文用相移技術(shù)實(shí)現(xiàn)數(shù)字全息的三維重構(gòu)姓名：朱釩申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：測(cè)試計(jì)量技術(shù)與儀器指導(dǎo)教師：胡家升20091216大連理工大學(xué)碩士學(xué)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(chǎng)ect(4)Theinfluenceofdifferentphas

10、eshiftinganglesofreferencewaveinrecordingonthequalityofthereconstructedimageisinvestigatedReasonsresultingintheerrorsarcanalysedtheoretically，andaniterativemethodisusedtoeliminatethephase—shiftingerrorbycalculatingasumth