手机版

全息成像的研究(2)

时间:2025-07-02   来源:未知    
字号:

竖主堡塞全星堕堡箜堑塞一——

Abstract

Thisthesisaddressesthetheory,numericalcomputingandtechnologyofdynamicalholographydisplaybasedonholovideo(real—timedisplay).Itisimpossibletorealizedynamicandreal—timedisplayfortypicalopticalholographywheretherearetwoindependencecoursesofopticalholographicrecordingandopticalholographicdisplay.However,dynamicalholographicdisplayisinteractive3-Ddisplay.Ithasmanyapplications.TypicalComputerGeneratedHolography(CGH)andhologramsynthesisthatsimulatetypicallyopticalholographyneedtocomputeahuge2-Dholographicfringe,ortolosesome3-Djnformationandresolutiontoreducedata.Thefirstreal—timedisplayofholographicimageswasreportedin1990bytheMITSpatialImagingGroupButthisisstillaflopenproblembecauseviewangleofholographicimages,volumeandspeedoftransmitarelimited.

Thisthesiscoversthemethodsofcomputingholographyaswellastheprincipleofthe3-Dimagingbasedonthediffraction-specificapproach,thekeytopicsareencodinganddecodingoffringebasedoncomputer-generatedholography(CGH).Anewmethodofencodinganddecodingoffringeareproposedusingwavelettransformtoestablishanewtransformmodel.Itisfastandsimpletocomputebasisfringebyusingthewaveletpackage.Experimentalresultsshowtheobviousadvantageandrobustnessofourmethods.Inthisthesis,westudythealgorithmofholographicstereogramdisplaythatCanbeimplementedusingCGH.Wediscusstheimagingprocessthroughcapturingsequenceparallaximages,illuminatinghologrambyaplanewavecreatesthevolumeeffectintheobserver’Seyes.ThemethodofcompressingbandwidthoffringefunctionisproposedthatbasisfringecontainsdiscretespectrumwhichisbasedonHumanvisionforreal—timedisplay.wealsointroducediscussesthespatiallightmodulators(SLMs)basedOndisplaysystemofdigitalholographyandtheoryofnumericalreconstructionofdigitalholography.Asaexample,wereconstructphaseoflightwavefronttoperfectbeamreflectedbyanimperfectmirror.

Thetopicwehavetackledareasthefollowing,

(1)Numericalsimulationforlightpropagationandvisualizationoflight-fielddistributionofFresnaldiffractionandFraunhoferdiffractionwith

(2)Comp …… 此处隐藏:49字,全部文档内容请下载后查看。喜欢就下载吧 ……

全息成像的研究(2).doc 将本文的Word文档下载到电脑,方便复制、编辑、收藏和打印
×
二维码
× 游客快捷下载通道(下载后可以自由复制和排版)
VIP包月下载
特价:29 元/月 原价:99元
低至 0.3 元/份 每月下载150
全站内容免费自由复制
VIP包月下载
特价:29 元/月 原价:99元
低至 0.3 元/份 每月下载150
全站内容免费自由复制
注:下载文档有可能出现无法下载或内容有问题,请联系客服协助您处理。
× 常见问题(客服时间:周一到周五 9:30-18:00)