在光栅投影三维轮廓术中，直接条纹位移分析法存在着垂直条纹方向分辨率低的缺点。
Among all methods of 3-d profilometry with projecting grating, direct fringe displacement analysis has the fault of low resolution in vertical fringe direction.
三维面形测量具有很高精度，位相测量轮廓术是其中一种重要方法。
Because of the precision of phase measuring profilometry, it is an important way of three-dimensional measuring.
傅里叶变换轮廓术是属于主动式光学三维测量方法中的一种。其测量精度较高，且数据采集速度快。
Fourier transform profilometry is one of the most popular active 3d optical measurement methods, with the advantage of high accuracy and fast acquisition speed.
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