toroidally-deformed grating 环形形变光栅
deformed grating pattern 变形光栅模式
For unnecessary to collect deformed grating images of object reference plane, it reduces operation steps and takes no solution for the phase of object reference plane.
由于不需另外采集实物参考面变形光栅图像，不仅减少了实物参考面的采集步骤，而且不需要对实物参考面相位进行求解。
It's unnecessary to collect deformed grating images of object reference plane, which reduces operation steps and takes no solution for the phase of object reference plane.
由于不需另外采集实物参考面变形光栅图像，不仅减少了实物参考面的采集步骤，而且不需要对实物参考面相位进行求解。
The Fourier transform profilometry as an active optical 3d shape measurement technology has been widely concerned because it need only one deformed grating image to make full-field analysis.
而傅里叶变换轮廓术作为一种主动光学三维形貌测量技术，因其只需要一幅变形光栅图样来做全场分析的优点，而受到人们广泛关注。
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