基于ChArUco平板的多目相机标定

Calibration of multiple cameras based on ChArUco board

  • 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%。

     

    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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