It makes the distribution of the calibrating points more even in the space and the result of the camera calibration more accurate 它使得定标点在空间分布更加均匀，定标精度提高。
2.
The effect of the density and distribution of the known calibrating points on the precise of the camera calibration is studied by experiments 在实验中，我们研究了定标点的密度极其分布对摄像机定标精度的影响。
