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
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