面向手持終端的復(fù)雜三維場景遠程渲染系統(tǒng)設(shè)計與實現(xiàn).pdf

1、浙江大學(xué)碩士學(xué)位論文AbstractAbstractTherealtimeinteractivetechniqueofcomplexthreedimensionalscenesforhandhelddeviceisoneofthehotspotsofcomputergraphicsandvirtualrealitybutcurrenttechniquestillCan’tmeettherequirementofhighlevelreal

2、timerenderingofcomplexthree—dimensionalscenesonhandhelddeviceTosolvetheproblemof1Iighlevelreal—timerenderingofcomplexthree—dimensionalscenesonhandhelddevice，weproposeanewmethodthatnamedhandhelddeviceremoterenderingsystem

3、forcomplexthree—dimensionalscene，asfollows：Firstlyanalysisthecurrentresearchstatusofremoterenderingtechnologyandmajorquestions，thendescribestheremoterenderingprocessusedwithanumberoftechnologies，includingthegeneralproces

4、softhree—dimensionalrendering，imagecompressionalgorithmSecondly，analysistheissueofrenderedimagetransferinremoterenderingsystem，studiesthelawofuseroperationswhenusingoursystem，andproposesafasterrenderedimagetransfermethod

5、basedonprediction—reconstructionandprogressionOrdinarymethodsarejustcompressingtherenderedimagesandtransferorusingthelawofinterframecorrelation，weproposeamethodtakingadvantageofthecorrelationofrenderedimageswhenvisitor’S

6、visualanglechangesInthatsituation，weselectsomekeyframestotransferthereceiverthenreconstructthenonkeyframesfromkeyframesWhenourviewpointoncemoves，wejusttransferthedifferenceimagesbetweenpredictedimageandactualimage，andthe

7、nthereceivercanreconstructtheactualimageInthiswaywegreatlyreducethedatathatneedtobetransferredThirdlyanalysisthecharacteristicsoflargescenesthatusedinoursystem，thenproposesamethodthatacceleratestherenderingprocessbasedOi

8、lthisfeatureWedividetheviewpointareaintoseveralsub—regionsbeforerendering，thenrecordthetrianglesthatarealwaysblockedofeverysub—region，thenwecanremovethesetriangleswhenrenderingInthisway，weacceleratetheprocessoflargescene