It is challenging to measure objects with a high dynamic range surface. We propose a three-dimensional measurement method of high dynamic surfaces based on multi-polarization fringe projection. The saturated pixels can be recognized to get the optimal exposure time by projecting a series of designed auxiliary patterns onto the surface of the object. It does not need to project multiple N-step phase-shifting fringe patterns for recognition, and it greatly improves the detection speed and efficiency. A multi-polarization camera captures full-resolution phase-shifting images with four polarization directions simultaneously. An appropriate polarization direction is selected by analyzing the per-pixel of auxiliary images captured by camera, and then optimal phase-shifting fringe images with high quality are obtained. The effectiveness and rapidness of this method are verified by the measurement experiments of different objects, and the method provides a new idea for rapid measurement.

中文翻译：

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基于多极化条纹投影的高动态范围表面快速3D测量

测量具有高动态范围表面的物体具有挑战性。我们提出了一种基于多极化条纹投影的高动态表面三维测量方法。通过将一系列设计好的辅助图案投影到物体表面，可以识别饱和像素以获得最佳曝光时间。不需要投射多个N步相移条纹进行识别，大大提高了检测速度和效率。多偏振相机同时捕获具有四个偏振方向的全分辨率相移图像。通过对相机拍摄的辅助图像逐像素进行分析，选择合适的偏振方向，从而获得高质量的最优相移条纹图像。