This paper presents a novel method that can accurately calibrate structured light system requiring only one directional structured patterns. This method leverages the existing flexible camera calibration to extract each calibration pose for three-dimensional coordinate determination for each pixel, and then establish pixel-wise relationship between each coordinate and phase. The phase artifacts caused by high-contrast calibration target was addressed to eliminate its impact on the calibration. Comparing with the traditional structured light system calibration method that requires two directional fringe patterns, our method requires only one single directional fringe patterns yet achieves 6.6 times higher accuracy for flat surface measurements.

本文提出了一种新颖的方法，该方法可以准确地校准仅需要一个定向结构化图案的结构化照明系统。该方法利用现有的灵活相机校准来提取每个校准姿势，以用于每个像素的三维坐标确定，然后在每个坐标和相位之间建立逐像素关系。解决了由高对比度校准目标引起的相位伪影，以消除其对校准的影响。与需要两个方向性条纹图案的传统结构光系统校准方法相比，我们的方法仅需要一个方向性条纹图案，但平面测量的精度却提高了6.6倍。