提出一种新型的用于数字莫尔干涉术的快速数字莫尔合成算法———莫尔滤波合成法,使原始条纹图叠加形成的莫尔条纹图最大比例地携带了人们所感兴趣的信息。通过简单的数字图像处理就可提取出有用的空间频率信息,得到理想的莫尔条纹,减少了有用信息的损失。可应用于直接与复杂标准波面比较的场合,如非球面面形检测,轮廓测量等。 A new fast digital Moiré synthesis algorithm, called Moiré filter synthesis method, is proposed for digital Moiré interferometry. The Moiré fringe pattern formed by the superposition of the original fringe patterns carries the information that people are most interested in. Through simple digital image processing, useful spatial frequency information can be extracted, ideal Moiré fringes can be obtained, and the loss of useful information can be reduced. Can be applied to direct and complex standard wave surface comparison occasions, such as non-spherical surface detection, contour measurement.