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《Computer Engineering and Applications》 2010-03
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Spatial information augmented representation using affine transformations registration

WU Xue-ling1,REN Fu2,DU Qing-yun2 1.Institute of Geophysics & Geomatics,China University of Geosciences,Wuhan 430074,China 2.School of Resources and Environment Science,Wuhan University,Wuhan 430079,China  
With the emergence of mobile GIS and wearable computing,operating space of GIS is extended to outdoor.Outdoor augmented reality spatial information representation is committed to enhance and expand user's spatial cognition by overlaying virtual geographic objects on real scene.For the purpose of reducing registration error and avoiding complicated camera calibration,it borrows algorithm from computer vision to set up global affine coordinate system for computing projection coordinates of virtual objects into real scene images.Simultaneously,it brings forward an approach to get pixels relative depth.It provides location-related information sources for outdoor AR and becomes a new interface for spatial information visualization representation.
【Fund】: 国家自然科学基金No.40801154/D0107;; 测绘遥感信息工程国家重点实验室专项科研经费资助~~
【CateGory Index】: P208
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