| 基于ChArUco平板的多目相机标定 |
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| 引用本文： | 赵子良,张宗华,高楠,孟召宗.基于ChArUco平板的多目相机标定[J].应用光学,2021,42(5):848-852. |
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| 作者姓名： | 赵子良 张宗华 高楠 孟召宗 |
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| 作者单位： | 河北工业大学 机械工程学院，天津 300130 |
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| 基金项目： | 重大科学仪器设备开发重点专项（2017YFF0106404）；国家自然科学基金（51675160，52075147） |
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| 摘 要： | 针对有限或无重叠视场的多目相机系统，提出一种基于ChArUco(chess augmented reality university of cordoba)平板的多相机标定方法。采用ChArUco平板进行相机标定；基于双目重投影误差进行全局优化，为无重叠视场的相机间进行位姿传递提供精度保证；最后通过空间点重建进行性能测试。实验结果表明在点间距25 cm范围内平均测量误差为0.11%。
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| 关 键 词： | 多目相机 ChArUco 内外参标定 重投影误差 |
| 收稿时间： | 2021-03-08 |
Calibration of multiple cameras based on ChArUco board |
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| Institution: | School of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, China |
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| Abstract: | A multiple cameras calibration method based on chess augmented reality university of cordoba (ChArUco) board was proposed for the multiple cameras system with limited or non-overlapping field of view. The ChArUco board was used to calibrate the camera; the global optimization was carried out based on the binocular reprojection error to provide precision guarantee for the subsequent pose transfer between cameras with non-overlapping field of view. Finally, the performance was tested by the spatial point reconstruction. The experimental results show that the average measurement error is 0.11 % within the point distance of 25 cm. |
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