11872.無(wú)人機(jī)的pos修正以及影像拼接研究

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3、honPOSCrectionImageStitchingofUAVSpecialty:PhotogrammetryRemoteSensingName:LiWenwenn(Signature):________Instruct:QuanBinaolin(Signature):________ABSTRACTBecauseUAVhasmanyadvantagessuchaslightweightsmallsizeeasytotransptm

4、appingcycleisshttimelinesslowcostcanreachpersonnelcannotenterthedangerzonetherefefavedbymanyfieldsespeciallyinthelargescalemappingoperationsadvantage.UAVisnotonlyasublimationofsatelliteremotesensingitisacomplementarygeod

5、eticinstruments.WithUAVwidelyusedinsurveyingmappingtheimagequicklyefficientlystitchingDEMproductionmemeimptant.ButUAVisalsoflawedsuchasbyairflowimpactunstableposturerotaryangleislargePOSaccuracyisnothighastheframesizeiss

6、mallsothatmenumberofphotographsotherissuesresultinginimagematchingslowevenfailure.Especiallyinearthquakerelieftheurgentneedmappingffieldsurveysocannotmeettherequirementsofimagemosaicspeedlyavarietyofadditionalproduct.Bas

7、edontheacteristicsofUAVimagecombinedwiththetwomainproblemsencounteredintheproductionPOSaccuracyisnothighphotographoverlaplevelpostureangledonotsatisfytherequirementsoftraditionalaerialtriangulationthepaperfocusedontheset

8、woissuesmakesaStudyproposessolutions.FthefirstquestionthematchfailsbecauseofPOSproblemsitproposesanapproachtogiveinitialvalueofPOSlineelementscrect.FirstwithSIFToperatonimagefeatureextractionthenbasedontheEuclideandistan

9、cematchingnextbasedontheprincipleofimagecrespondencepointsequalingtocrespondingmodelpointcodinatesgivesroughlyinitialvalueofPOSlineelementsfollowingwithcontinuousprocessrelativeientationtocrecttheinitialvaluecalculatingt

10、henewPOSlineelements.Toassistcompletematchingthefollowupwkuseditinaerialtriangulationsoftwareagain.InadditionfthesecondquestioninasequenceofUAVimagedonotsatisfythethreemedegreesoverlappingsmallangleetc.accdingtothetradit

11、ionalaerialtriangulationprocesscannotbecompletedrelativelyientationimagestitchingthearticleimagemosaicbasedoncomputervisionstitchingpresentswithSURFoperattodetectthefeaturepointwithSIFToperatextractingdesbasedonBBFmatchu