Takeda M, Gu Q, Kinoshita M, Takai H, Takahashi Y
Department of Communication and Systems Engineering, University of Electro-Communications, 1-5-1, Chofugaoka, Chofu, Tokyo 182, Japan.
Appl Opt. 1997 Aug 1;36(22):5347-54. doi: 10.1364/ao.36.005347.
The performance of Fourier-transform profilometry is enhanced by a new technique that is based on spatial frequency multiplexing combined with the Gushov-Solodkin phase unwrapping algorithm. The technique permits the three-dimensional shape measurement of objects that have discontinuous height steps and/or spatially isolated surfaces, which has not been possible by conventional Fourier-transform profilometry. An important feature of the technique is that it requires only a single fringe pattern; the single-shot recording makes possible the instantaneous three-dimensional shape measurement of discontinuous objects in fast motion. Experimental results are presented that demonstrate the validity of the principle.
一种基于空间频率复用并结合古绍夫 - 索洛德金相位展开算法的新技术提高了傅里叶变换轮廓术的性能。该技术能够对具有不连续高度台阶和/或空间孤立表面的物体进行三维形状测量，而传统的傅里叶变换轮廓术无法做到这一点。该技术的一个重要特点是仅需一个条纹图案；单次记录使得对快速运动的不连续物体进行瞬时三维形状测量成为可能。文中给出的实验结果证明了该原理的有效性。
