在三点拟合圆的过程中，三点相对距离越近对误差的敏感度越高。78 为了使

In the process of fitting a circle with three points, the closer the relative distance of the three points is, the higher the sensitivity to error. <br>78 <br>In order to maximize the distance between the selected three points, this study divides the data in the camera point cloud set into three groups in order. If there are redundant points, they can be discarded. The circle fitting can ensure that the points are the farthest apart.

In the process of three-point fitting circle, the closer the three-point relative distance is, the higher the sensitivity to error is.<br>seventy-eight<br>In order to maximize the distance between the selected three points, the data in the camera point cloud set are evenly divided into three groups in order. If there are redundant points, they can be discarded. Take three points in turn from the three groups of data for circular fitting to ensure the farthest distance between each point.

In the process of three-point fitting circle, the closer the relative distance of three points is, the higher the sensitivity to errors. seventy-eight In order to maximize the distance between the selected three points, the data in the camera point cloud set are divided into three groups on average in order. If there are redundant points to discard, three points in the three groups of data are selected in turn for circle fitting, which can ensure the farthest distance between the points.