车辆三维轮廓的光栅投影测量技术研究

Research on Grating Projection Measuring Technology for Vehicle 3D Profile

针对车辆外观三维轮廓测量的技术特点,提出了用光栅投影测量的方法来研究车辆三维轮廓尺寸的测量,以开发相应的测量系统。对该系统的组成及测量原理进行了详细论述,并对大型光栅的投影测量方法及三维投影轮廓的重建方法进行了研究,以此来实现车辆三维投影轮廓及特征尺寸的测量。试验结果表明,光栅投影测量技术可以应用于车辆外观三维轮廓的测量当中,从而实现车辆外廓尺寸的快速、准确及非接触式的测量。

Aimed at the technical features of vehicle 3D profile measurement, a grating projection measuring method was introduced to research the dimensions of vehicle 3D profile for developing the corresponding measuring system. A detailed discussion about construction of the system and measuring principle was made, 3D projection profile and measurement of feature sizes were realized with the research on projective measuring method of large scale grating as well as the method of 3D profile reconstruction. Experimental results show that the grating projection measuring thechnology can be applied to the vehicle 3D profile dimensions be measured quickly, accurately and non-contact based t so as to realize the vehicle-body grating projection measuring technique.