Estimation of camera poses by parabolic motion

	Estimation of camera poses by parabolic motion
	Lu Y.-W.; Wang J.-L.; Wang H.-J.; Liu W.; Wu L.; Cao J.-T.
	2014
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
ISSN	ISBN/1004924X
卷号	22 期号:4 页码:1078-1085
摘要	A new method was proposed for the camera pose estimation based on specific geometric properties of parabolic motion. The intersection of lines which was the projections of trajectories of a free falling subject from different locations was first calculated. According to the nature of the vanishing point, the intersection was proved to be the vanishing point of the Earth's gravity direction. Then, the equation of conic obtained by projecting parabolic trajectory on the image plane was solved using Sampson approximation. Finally, under the condition of known intrinsic parameters, the camera pose was evaluated by using the geometric properties of vanishing point and vanishing line hidden in the projective conic. The experiments with numerical simulation as well as with real images indicate that the method is correct and feasible. By the proposed method, experimental results show that the mean error of evaluated rotation axis is 0.017 rad, and the rotation angle is 0.007 rad, and the mean error of translation direction is 0.071 rad as compared to the traditional checkerboard method. Results indicate that the proposed method can be used for camera pose estimation in computer vision.
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/43974
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Lu Y.-W.,Wang J.-L.,Wang H.-J.,et al. Estimation of camera poses by parabolic motion[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2014,22(4):1078-1085.
APA	Lu Y.-W.,Wang J.-L.,Wang H.-J.,Liu W.,Wu L.,&Cao J.-T..(2014).Estimation of camera poses by parabolic motion.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,22(4),1078-1085.
MLA	Lu Y.-W.,et al."Estimation of camera poses by parabolic motion".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 22.4(2014):1078-1085.

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