Mirror-based Camera Pose Estimation Using an Orthogonality Constraint
Mirror-based Camera Pose Estimation Using an Orthogonality Constraint
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DOI：
10.2197/ipsjtcva.8.11
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
Kosuke Takahashi;S. Nobuhara;T. Matsuyama
中科院分区：
文献类型：
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作者：
Kosuke Takahashi;S. Nobuhara;T. Matsuyama
本文的目的是利用反射镜来估计摄像机相对于不能直接从摄像机看到的3D参考对象的相对姿态和位置，即外部参数。本文的主要贡献是提出了一种新的基于正交性约束的非本征摄像机标定公式，该公式应满足单个参考对象的所有镜面反射族。这使我们能够获得更多的方程，这有助于使校准更稳健。通过使用合成数据和真实数据的定性和定量评估，我们证明了所提出的方法与最新技术相比的优势。
This paper is aimed at employing mirrors to estimate relative posture and position of camera, i.e., extrinsic parameters, against a 3D reference object that is not directly visible from the camera. The key contribution of this paper is to propose a novel formulation of extrinsic camera calibration based on orthogonality constraint which should be satisfied by all families of mirror-reflections of a single reference object. This allows us to obtain a larger number of equations which contribute to make the calibration more robust. We demonstrate the advantages of the proposed method in comparison with a state-of-the-art by qualitative and quantitative evaluations using synthesized and real data.