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基于天绘卫星影像的无控制点空三加密方法探讨.docx

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基于天绘卫星影像的无控制点空三加密方法探讨 Title:DiscussiononUncontrolledPointSpaceTriangulationMethodBasedonTianhuiSatelliteImages Abstract: Spacetriangulationisanimportantmethodinremotesensingandphotogrammetryfordeterminingthepositionofanobjectusingmeasurementsfromdifferentviewpoints.Conventionally,triangulationrequiresthepresenceofcontrolpointswithknowncoordinatestoachieveaccurateandreliableresults.However,insituationswherecontrolpointsareunavailable,suchasinunexploredorremoteregions,alternativemethodsmustbeconsidered.ThispaperexplorestheuseofTianhuisatelliteimagesforspacetriangulationwithouttheneedforcontrolpoints.Specifically,itdiscussesthelimitationsoftraditionalmethods,introducestheconceptofuncontrolledpointspacetriangulation,andpresentsaframeworkforthisnovelapproach. 1.Introduction 1.1Background 1.2Objectives 2.TraditionalSpaceTriangulationMethods 2.1PrincipleofSpaceTriangulation 2.2RequirementsforTraditionalSpaceTriangulation 2.3LimitationsofTraditionalMethods 3.UncontrolledPointSpaceTriangulation 3.1ConceptandPrinciple 3.2AdvantagesandChallenges 3.3WorkflowofUncontrolledPointSpaceTriangulation 4.UtilizationofTianhuiSatelliteImagesforUncontrolledPointSpaceTriangulation 4.1IntroductiontoTianhuiSatellites 4.2PreprocessingofTianhuiSatelliteImages 4.3FeatureExtractionandMatching 4.4DeterminationofUncontrolledPoints 4.5SpaceTriangulationusingUncontrolledPoints 5.ExperimentalResultsandAnalysis 5.1DatasetDescription 5.2ComparisonwithTraditionalMethods 5.3AccuracyAssessment 5.4DiscussionofResults 6.ApplicationsandPotentialImpact 6.1UseCases 6.2ImplicationsforRemoteSensingandPhotogrammetry 7.Conclusion 7.1SummaryofFindings 7.2LimitationsandFutureResearch ThispaperaimstoproposeandinvestigateamethodforspacetriangulationusinguncontrolledpointsbasedonTianhuisatelliteimages.Byremovingthedependencyoncontrolpoints,thisapproachopensuppossibilitiesformappingandmonitoringinareaswheregroundcontrolischallengingorimpossible.Thepaperprovidestheoreticalbackground,explainstheworkflow,andpresentsexperim