为简化旋转轴心线的定位,提出了一种基于平面参照物的现场标定方法.将一个绘制有棋盘格图案的靶标倾斜地放在旋转平台上,控制旋转平台任意旋转几个角度,并拍摄下每个位置处靶标的图片.通过处理这些图片获取靶标上特征点的空间坐标,对这些特征点作圆拟合得到一系列的圆心点,再对这些圆心点作直线拟合,建立起旋转轴的直线方程,完成旋转轴的标定.实验验证了该方法的可行性,实测物体的均方根误差为0.04 mm. In order to simplify the positioning of axis of rotation, a method of on-site calibration based on plane reference is proposed, in which a target with a checkerboard pattern is tilted on a rotating platform to control the rotating platform to rotate at any angle and shoot Under each position of the target picture .Through the processing of these pictures to obtain the target point on the spatial coordinates of the coordinates of the feature points of a circle fitted to a series of center points, and then these center points for a straight line to establish the rotation Axis linear equations to complete the calibration of the rotating shaft.The experiment proves the feasibility of the method, the measured root mean square error of the object is 0.04 mm.