该技术通过平移实物参考面，测得其上位相分布，利用其位移距离与位相增量之间的关系，以最小二乘方法计算位相差与物面深度之间的映射关系。
According to the shifted distance and the phase increment, the mapping relationship between phase difference and depth of object can be determined by a least squares method.
以盘形凸轮为例，提出一种用计算机编程实现平面零件实物三维几何数据获取以及模型反求的方法。
This paper took discal cam as an example to bring forward a method of using computer program to get 3D geometric data of planar part and make its model in reverse.
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