Optical profilometry based on light pattern projection for macroscopic shape measurement of diffuse objects can be classified into two groups: direct triangulation and grating projection phase measurement method.
主要用于散射物体的宏观轮廓测量的光学投影式轮廓测量技术可以分为两大类：直接三角法和相位测量法。
参考来源 - 光学投影式三维轮廓测量技术综述·2,447,543篇论文数据，部分数据来源于NoteExpress
In 3-d profilometry based on structured light projection, the choice of low-pass filter to be used in the deformed pattern demodulation is crucial.
分析在光栅投影三维形貌测量中，用于对变形光栅像解调的低通滤波器的性能。
The laser direct writing(LDW) system SVGLDW 04 with a projection optical system and a spatial light modulator(LCD-SLM) can expose a reduction pattern directly on a photoresist plate.
通过双远心成像光路，激光直写（LDW）系统SVG-LDW 04把液晶空间光调制器（LCD-SLM）上的光斑直接成像在光刻胶板上，得到高质量的光斑图形。
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