为了解决流水线上产品的尺寸自动测量难的问题，基于目前机器视觉在尺寸测量方面的应用，介绍了用机器视觉来检测线圈绕线质量的方案。采用简化了的针孔模型对相机进行标定，并针对CCD成像元的不均匀性，提出改进方案并对测量结果进行误差修正，通过实验完善并验证了该方案的可行性，为机器视觉测量尺寸提供理论基础。

A project of using machine vision to detect the quality of coil winding was introduced based on current application of machine vision in size measurement to solve the difficulty of measuring product size on production line. A simplified pinhole model was applied to calibrate camera. Improvement method to correct measurement error was put forward to solve the nonuniformity problem of CCD imaging unit. The feasibility of the method was verified. The purpose was to provide reference for size measurement by machine vision.