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《Geomatics World》 2008-05
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A Method of Subway 3D Reconstruction from Monocular Image

SUN Min1,Hu Zheng2 (Institute of Remote Sensing and GIS,Peking University,Beijing 100871,China; 2. School of Infophysics and Geomatics Engineering,Central South University,Changsha 410083,China)  
Subway (including tunnel, laneway) is a kind of important construction, and recon-struction of its 3D model from image is important for establishment of digital platform. Under the assumption that one initial 3D geometry model is given, camera extrinsic parameters, intrinsic parameters and parameters which determine the final 3D geometry model are obtained by interactive way using line features on subway image. Then using the principal of monocular vision theory, feature points on image is reprojected onto the 3D geometry model surface plane to get detailed 3D model. The experiment shows that this method is effective and can be developed in practice.
【Fund】: 国家自然科学基金资助项目(40620130438);; 国家863高技术发展计划资助项目(2007AA12Z234)
【CateGory Index】: P232
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