YAN Li, MA Zhenling, WANG Qiongjie, WANG Yidan. Geopositioning for Optical Satellite Images Using Spatial Triangulated Network[J]. Geomatics and Information Science of Wuhan University, 2015, 40(7): 938-942. DOI: 10.13203/j.whugis20140694
Citation: YAN Li, MA Zhenling, WANG Qiongjie, WANG Yidan. Geopositioning for Optical Satellite Images Using Spatial Triangulated Network[J]. Geomatics and Information Science of Wuhan University, 2015, 40(7): 938-942. DOI: 10.13203/j.whugis20140694
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Geopositioning for Optical Satellite Images Using Spatial Triangulated Network

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  • Regionalspatialtriangulatednetworkmanagingtheoutcomeofspatialtriangulationisraisedinthispaperonthebasisofrepeatedobservationofsatellites.Combinedblockadjustmentwithnon o rientednewimagesandspatialtriangulatednetworkisexecutedforpositioningwithsparse(no)groundcontrolpoints(GCPs).TestresultsshowthatspatialtriangulatednetworkcanachievehigheraccuracywithoutGCPsandneedsfewerGCPstogetthesameaccuracythantheconventionalmethod.Thehigheraccuracycanbeachievedwhenthenumberofimagesinthenetworkismoreandresolutionhigherthanthenewimagesandalsotheyhavehigheroverlaps,Inapplication,usingspatialtriangula tednetworkwillimprovethetimelyefficiencyofgeometryprocessingofsatelliteimagesandimagesutilization,whichprovidesanothereffectivewaytoimagegeometricpositioning.
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