检索结果-南通市图书馆

作者： Vorawit Meesuk Zoran Vojinovic arthur E.Mynett Hydro and Agro Informatics Institute Ministry of Science and Technology Bangkok Thai Tower8 th FloorRangnamPhayathai10400BangkokThailand UNESCO-IHE Institute for Water Education Westvest 7 2611 AXDelftThe Netherlands Faculty of Civil Engineering and Geosciences Delft University of Technology Stevinweg 12628 CNDelftThe Netherlands

Using physically based computational models coupled with remote sensing technologies,photogrammetry techniques,and GIS applications are important tools for flood hazard mapping and flood disaster ***,information processing of massive input data with refined accuracy allows us to develop and to improve urban-floodmodeling at a detailed *** topographical information from digital surface model（DSM） or digital terrain model（DTM） is essential for flood managers who actually require this high accuracy and resolution of input data to set up their practical *** detecting and ranging（LiDAR） techniques are mainly used,but these costly techniques can be appraised by equipments,maintenance,and operations which include *** advances in photogrammetry and computer vision technologies like structure form motion（SfM） technique are widely used and offer cost-effective approaches to reconstruct 3D-topographical information from simple 2D photos,so-called 3D *** terms of input data for flood modeling,the SfM technique can be comparable to other *** this paper,there are one experimental and two case ***,a result of the experiment showed a similarity between flood maps by applying the SfM process form the 3D-reconstruction and using benchmark *** 3D-reconstruction processes started from 2D photos,which were taken from virtual scenes by using multidimensional-view *** photos can be used to generate 3D information which is later used to create the DSM from multidimensional fusion of views（MFV-DSM）.Then,the DSM was used as input data to set up 2D flood ***,when using the DSMs as topographical input data,comparison between a benchmark DSM and MFV-DSM shows similarity flood-map results in both flood depths and flood ***,the two cases from real world scenes also showed possibilities of using the SfM technique as an alternative acquisition tool,prov

关键词： Floods Data models Benchmark testing Software Buildings Digital cameras

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