为简化测量系统中平移轴和旋转轴的标定,提出一种基于一维平面标靶的简易标定方法。将一维标靶放置在数控平台上,控制平台分别做平移和旋转运动,提取每个位置下图像中圆心坐标,利用消隐点和三点透视模型(P3P)原理实现系统轴线空间位置的标定。实验结果表明,该标定方法具有较高的标定精度,平均绝对测量误差为0.0411mm,均方根(RMS)误差为0.0625mm。该标定方法仅需已知的等距共线三点即可完成平移轴线和旋转轴线的高精度标定,降低了标定成本,且计算简单、标定过程灵活方便,适合现场标定。 In order to simplify the calibration of the translation axis and the rotation axis in the measurement system, a simple calibration method based on a one-dimensional planar target is proposed. The one-dimensional target is placed on the numerical control platform, the control platform translates and rotates respectively. The coordinates of the center of the circle in each position are extracted. Using the principle of blanking point and three-point perspective model (P3P), the calibration of the spatial position of the system axis . The experimental results show that the calibration method has high calibration accuracy, the average absolute measurement error is 0.0411mm and the root mean square error (RMS) is 0.0625mm. The calibration method only requires known equidistant collinear three points to complete the high-precision calibration of the translation axis and the rotation axis, reduces the calibration cost, and the calculation is simple, the calibration process is flexible and convenient, and is suitable for field calibration.