The principles of the laser vision alignment is introduced,and elaborates on the method of 3D coordinates measurement of the tip,namely,multi curve fitting in the light plane with least square theory.

• 介绍了激光视觉汽车车轮的定位原理 ,提出了在光平面内用最小二乘多次曲线拟合来求取车轮胎冠最高点 3D坐标的方法。