讨论了在平面坐标系上摄像机的标定和利用单个摄像机获取三维视觉信息的一种方法。实验结果表明，采用单个摄像机获取三维视觉信息的精度与摄像机相对目标物体的高度及对象物本身的厚度有关，在视场范围内，对象物的厚度越小，摄像机坐标中心相对于目标物体表面中心的距离越远，定位精度越好。 A method of calibrating a camera in a plane coordinate system and acquiring three-dimensional visual information using a single camera are discussed. The experimental results show that the accuracy of using a single camera to obtain 3D visual information is related to the height of the camera relative to the target object and the thickness of the object itself. The smaller the thickness of the object in the field of view, the smaller the camera coordinate center relative to the center of the target object surface The farther the distance, the better the positioning accuracy.