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《Science of Surveying and Mapping》 2008-04
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A new method to spatial point 3D reconstruction and its uncertainty study

ZHANG Mei①②,ZHANG Zu-xun①,ZHANG Jian-qing①,WEN Jing-hua②(①School of Remote Sensing and Information Engineering,Wuhan University,Wuhan 430079,China;②Information Institute,Gui Zhou Financial Institute,Guiyang 550004,China)  
The basic principle of stereo vision and the traditional method to spatial point 3D reconstruction are researched.A new method based on mid-point of common vertical line of two spatial homonymous ray which lie in different spatial plane and they neither parallel nor overlap is proposed to 3D reconstruct any spatial point.And it is validated that the most excellent solution in this meaning is equal to the solution by method of least squares which satisfies the least mean square error.Finally on the base of analytic solution of 3D point which is reconstructed,its uncertainty is researched quantificationally by taking description method with probability,and it is showed intuitionisticly with super ellipsoid founded on Mahalanobis distance.
【Fund】: 国家自然科学基金资助(40571136)
【CateGory Index】: TP391.41
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