基于非量測數(shù)碼影像的地形數(shù)據(jù)獲取技術研究.pdf

1、河海大學碩士學位論文基于非量測數(shù)碼影像的地形數(shù)據(jù)獲取技術研究姓名：楊立君申請學位級別：碩士專業(yè)：攝影測量與遙感指導教師：李浩20050601河海大學碩士論文AbstractNowadaysthemostcommonusedmethodsforextractingsmallrangetopographicdataarethetotalstationbasedgroundsurveyingandthephotographytheodolit

2、e—basedterrestrialphotograrnmetryHowever，whensurveyinginsome11illyareasusingtheformermethoditwouldbecomeoverworkloadandsometimesitwouldbetoodifficultanddangeroustohandletheworkAndthelateronedemands蛐蟲quai塒ofprofessionalsk

3、illsandequipagesOntheotherhand，becauseofitsremarkablemerits，suchaslowcost，highresolution，thefeasibilityofdataacquisition，highspeedtotransmitandprocessnonmetricdigitalcameraanditsimageryarewidelyusedinvariousdomainsButthe

4、alreadyproposedalgorithmsfornonmetricdigitalcamerasphotogrammetryaremainlybasedonDirectLinearTransformation(DLT)orBundleAdjustment，whichhasdefectsofdemandingtoohighlyforboththequantityandthedistributionofthecentrelpoints

5、AnditiSspecialtostereomatchingofnormalclosedigitalimagerytooInordertoovercometheapplicationdefects，thisdissertationpropOSCSatopographicdataextractiontechniquethatusesnonmetricdigitalcamerastoobtaindataandhasClose—RangePh

6、otogrammetryanddigitalimageprocessingtechniqueasittheorybasisAsannonmetriccamerawhenUSedforphotogrammetrycommondigitalcamerahasmanydefectsForexample，itcannotprovidetheinteriorofientadonparameters(IOP’s、withsufficientaccu

7、racyandthedistortionofitsimageryiscomparativelylargeTherefore，itsimagedataprocessingalgorithmdiffersfromtraditionalphotogrammetryHence，theresearchonthetechniqueofthree—dimensiontopographicdataextractionfromnonmetricdi垂ta

8、limageryispresentedasfollows：1ThecalibrationofnonmetricdigitalcamerasincludingthedeterminationofcameradlstortionandtheIOP’SAndthemetricilizeduseofnonmetriccameraincludingthemetricilizedfeasibilitythemetricilizedmethodolo

9、gyandthenatureofmetriclizingcommondigitalcamgla2Thesurveyingprocessalgorithmtonormalclosedigitalimageryincludingtheestablishmentofimageengineeringcoordinationsystem，thephotogrammelxicalgorithmsfornonmetricimagerysuch船ext

10、eriororientationparameters(EOP’S)calculationrelativeorientation，absoluteorientationandthemetricilizedevaluationoftheiraccuracy3Imagestereomatchingmethoddesignedfornormalclosedigitalimagery4Thedesignanddevelopmentofthetop

11、ographicdataextractioninformationsystembasedonnonmetricdigitalimageryⅥldOUSresearchesandexperimentshaveprovedthattheproposedmetricilizedmethod，thesurveyingprocessalgorithmandthestereo—matchingmethodfornonmetricdigitalcam

12、erasarevalidandeffectiveWi也theproposeddigitalimagesurveyingalgorithmandtllestereomatchingalgorithmthedigitalcamera’SmelricilizedutilizationwiUeffectivelydeskillandde—equiptheuseofCloseRangePhotogrammetryKeywords：DigitalC