Elon Musk once said, "3D reconstruction technology is an indispensable part of the process of achieving fully autonomous driving. Mark Zuckerberg, founder of Facebook, also pointed out that "the advent of the metaverse era will rely more on highly detailed three-dimensional spatial expressions." These statements from industry giants have undoubtedly injected strong impetus into the future development of 3D reconstruction.
三维重建目前是最为炙手可热的领域。 摄影测量或结构光投影技术可以解决漫反射重建问题，但却无法有效应对镜面反射物体（如玻璃、积水、反光物体和汽车车身）等的重建挑战。 三维重建领域研究学者Kuosheng Jiang曾说：High brightness and high reflectivity are two significant challenges that remain to be addressed in machine vision inspection.因此，采用相位测量偏折术的方法可以快速而准确地完成对这些高反射物体的三维测量检测。
Phase measurement deflection is ideal for inspecting and reconstructing smooth, reflective surfaces. It uses a single display and a camera to measure it: a series of black and white stripes are displayed on the display, which are reflected by the mirror and deformed and captured by the camera. By demodulating the distorted fringes captured by the camera, the three-dimensional topography of the mirror surface can be restored. Machine vision software based on light reflection accurately calculates the location of uneven areas on the surface of an object. As a result, even tiny defects such as scratches, bumps, cracks, dents, and bubbles that are imperceptible to the naked eye can be accurately detected and located.
Deflection measurement has been widely used in precision measurement, lathe processing, three-dimensional reconstruction and other fields, which is a direction that has developed very rapidly in recent years.