Generation of 3D Virtual Geographic Environment Based on Laser Scanning Technique

(整期优先)网络出版时间:2003-03-13
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Thispaperdemonstratesanexperimentonthegenerationof3Dvirtualgeographicenvironmentonthebasisofexperimentalflightlaserscanningdatabyasetofalgorithmsandmethodsthatweredevelopedtoautomaticallyinterpretrangeimagesforextractinggeo-spatialfeaturesandthentoreconstructgeo-objects.Thealgorithmsandmethodsfortheinterpretationandmodelingoflaserscannerdataincludetriangulated-irregular-network(TIN)-basedrangeimageinterpolation;mathematical-morphology(MM)-basedrangeimagefiltering,featureextractionandrangeimagesegmentation,featuregeneralizationandoptimization,3Dobjectsreconstructionandmodeling;computergraphics(CG)-basedvisualizationandanimationofgeographicvirtualrealityenvironment.