Extrinsic Camera Calibration From a Moving Person
Extrinsic Camera Calibration From a Moving Person
复制标题
通过移动的人进行外部相机校准
DOI:
10.1109/lra.2022.3192629
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发表时间:
2022
影响因子:
5.2
通讯作者:
Ko Nishino
中科院分区:
文献类型:
--
作者:
Sang-Eun Lee;Keisuke Shibata;Soma Nonaka;Shohei Nobuhara;Ko Nishino
We propose a novel camera calibration method for a room-scale multi-view imaging system. Our key idea is to leverage our articulated body movements as a calibration target. We show that a freely moving person provides trajectories of a set of oriented points (e.g., neck joint with spine direction) from which we can estimate the locations and poses of all cameras observing them. The method only requires the cameras to be synced and that 2D human poses are estimated in each view sequence. By elevating these 2D poses to 3D which directly provides a set of oriented 3D joints, we compute the extrinsic parameters of all cameras with a linear algorithm. We also show that this enables self-supervision of the 3D joint estimator for refinement, and the iteration of the two leads to accurate camera extrinsics and 3D pose estimates up to scale. Extensive experiments using synthetic and real data demonstrate the effectiveness and flexibility of the method. The method will serve as a useful tool to expand the utility of multi-view vision systems as it eliminates the need for cumbersome on-site calibration procedures.
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DOI:
10.1109/icig.2009.92
发表时间:
2009
期刊:
2009 Fifth International Conference on Image and Graphics
影响因子:
--
作者:
Xiuwei Zhang;Yanning Zhang;Xingong Zhang;Tao Yang;Xiaomin Tong;Haichao Zhang
通讯作者:
Haichao Zhang
DOI:
10.1016/j.imavis.2007.10.001
发表时间:
2008
期刊:
Image Vis. Comput.
影响因子:
--
作者:
P. Tresadern;I. Reid
通讯作者:
I. Reid
DOI:
--
发表时间:
1999
期刊:
--
影响因子:
--
作者:
京都大学大学院情報学研究科
通讯作者:
京都大学大学院情報学研究科
DOI:
10.1109/34.888718
发表时间:
2000-11-01
影响因子:
23.6
作者:
Zhang, ZY
通讯作者:
Zhang, ZY