A New Model of 3D Shape Measurement System Based on Phase Measuring Profilometry and Its Calibration
一种新的相位法三维轮廓测量系统模型及其标定方法研究

To solve the problems of system calibration in phase measuring profilometry(PMP),a new measurement model is proposed.In this model,the relation between phase and height is extended to the 3D space.And it is no longer necessary to arrange the system in parallel,while the camera and projector can be in arbitrary position.By virtue of the camera calibration technique,a convenient and practical calibration method is proposed.The experiments demonstrate that this calibration method is flexible and applicable to many shape measurement tasks.The calibration proceeding can be accomplished within 2 minutes and the system precision is improved.