Investigation of phase error correction for digital sinusoidal phase-shifting fringe projection profilometry
Investigation of phase error correction for digital sinusoidal phase-shifting fringe projection profilometry
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DOI：
10.1016/j.optlaseng.2012.01.021
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发表时间：
2012-08
影响因子：
4.6
通讯作者：
Suo-dong Ma;C. Quan;R. Zhu;C. Tay
中科院分区：
文献类型：
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作者：
Suo-dong Ma;C. Quan;R. Zhu;C. Tay
数字正弦相移条纹投影轮廓术（DSPFPP）是一种重建漫射物体三维表面的有力工具。然而，一个高精度的轮廓往往是由一对数字投影仪和CCD/CMOS相机的非线性响应，颜色串扰和不平衡的阻碍。本文介绍了几种适用于灰度和彩色编码DSPFPP的相位误差校正方法，如查找表（LUT）补偿、亮度校正、伽马校正、基于LUT的混合方法和盲相位误差抑制。实验结果也证明，以评估每种方法的有效性。
Digital sinusoidal phase-shifting fringe projection profilometry (DSPFPP) is a powerful tool to reconstruct three-dimensional (3D) surface of diffuse objects. However, a highly accurate profile is often hindered by nonlinear response, color crosstalk and imbalance of a pair of digital projector and CCD/CMOS camera. In this paper, several phase error correction methods, such as Look-Up-Table (LUT) compensation, intensity correction, gamma correction, LUT-based hybrid method and blind phase error suppression for gray and color-encoded DSPFPP are described. Experimental results are also demonstrated to evaluate the effectiveness of each method.