Shi Taichu, Qi Yang, Zhu Cheng, Tang Ying, Wu Ben
Department of Electrical and Computer Engineering, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ 08028, USA.
Department of Civil and Environmental Engineering, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ 08028, USA.
Sensors (Basel). 2021 Sep 11;21(18):6097. doi: 10.3390/s21186097.
In this paper, we propose and experimentally demonstrate a three-dimensional (3D) microscopic system that reconstructs a 3D image based on structured light illumination. The spatial pattern of the structured light changes according to the profile of the object, and by measuring the change, a 3D image of the object is reconstructed. The structured light is generated with a digital micro-mirror device (DMD), which controls the structured light pattern to change in a kHz rate and enables the system to record the 3D information in real time. The working distance of the imaging system is 9 cm at a resolution of 20 μm. The resolution, working distance, and real-time 3D imaging enable the system to be applied in bridge and road crack examinations, and structure fault detection of transportation infrastructures.
在本文中，我们提出并通过实验证明了一种基于结构光照明重建三维（3D）图像的三维微观系统。结构光的空间图案根据物体轮廓而变化，通过测量这种变化来重建物体的三维图像。结构光是用数字微镜器件（DMD）产生的，它控制结构光图案以kHz速率变化，并使系统能够实时记录三维信息。成像系统的工作距离为9厘米，分辨率为20微米。该系统的分辨率、工作距离和实时三维成像能力使其能够应用于桥梁和道路裂缝检测以及交通基础设施的结构故障检测。
