【摘要】 在相移测量剖面术（ＰＭＰ）中， 提出了一种基于快速傅里叶变换的相移校正算法， 利用最初多采的一幅条纹图的信息和傅里叶变换调制度模板， 快速地计算出当前的相移值。采用该算法， 能实时准确地控制投影光栅的移动， 大大提高了测量系统的精度和自动化程度， 具有极大的实用价值。更多还原

【Abstract】 In phase measuring profilometry (PMP), a new simultaneous calibration algorithm of phase shifting based on fast Fourier transform (FFT) is presented. The current phase shifting is calculated with the help of the information of a additional fringe pattern and a FFT modulation mask. With this algorithm, the moving of the project grating can be controlled accurately and simultaneously, the accuracy and the automation of the measuring system are improved greatly.更多还原