Generation of 3D virtual geographic environment based on laser scanning technique |
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| Authors: | Du Jie Chen Xiaoyong Fumio Yamazaki |
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| Institution: | School of Civil Englneering , Asian institute of Technology , Thalland |
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| Abstract: | This paper demonstrates an experiment on the generation of 3D virtual geographic environment on the basis of experimental flight laser scanning data by a set of algorithms and methods that were developed to automatically interpret range images for extracting geo-spatial features and then to reconstruct geo-objects. The algorithms and methods for the interpretation and modeling of laser scanner data include triangulated-irregular-net-work (TIN)-based range image interpolation; mathematical-morphology (MM)-based range image filtering, feature extraction and range image segmentation, feature generalization and optimization, 3D objects reconstruction and modeling; computergraphics (CG)-based visualization and animation of geographic virtual reality environment. |
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| Keywords: | laser scanning data virtual geographic environment (VGE) urban disaster |
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