Three-Dimensional Imaging via Time-Correlated Single-Photon Counting
Three-Dimensional Imaging via Time-Correlated Single-Photon Counting
复制标题
DOI：
10.3390/app10061930
复制
发表时间：
2020-03-01
影响因子：
2.7
通讯作者：
Xu, Zhuo
中科院分区：
文献类型：
--
作者：
Fu, Chengkun;Zheng, Huaibin;Xu, Zhuo
弱光、低信噪比条件下的三维成像是一个具有挑战性的课题。本文提出并论证了一种基于时间相关单光子计数技术的三维成像方案。三维成像方案由脉冲激光器、扫描镜、单光子探测器和时间相关单光子计数模块组成，采用时间相关单光子计数技术进行三维激光雷达（光探测和测距）。实验结果表明，在距离选通技术的辅助下，该方法可以在信噪比降低到-13 dB时对目标成像，成像结果的结构相似性指数提高了10倍。证明了该方案可以在6.7s内对物体进行三维成像，成像的横向分辨率为512 × 512，轴向分辨率为4.2mm。最后，利用光度立体算法实现了物体的高分辨率三维重建。
Three-dimensional (3D) imaging under the condition of weak light and low signal-to-noise ratio is a challenging task. In this paper, a 3D imaging scheme based on time-correlated single-photon counting technology is proposed and demonstrated. The 3D imaging scheme, which is composed of a pulsed laser, a scanning mirror, single-photon detectors, and a time-correlated single-photon counting module, employs time-correlated single-photon counting technology for 3D LiDAR (Light Detection and Ranging). Aided by the range-gated technology, experiments show that the proposed scheme can image the object when the signal-to-noise ratio is decreased to -13 dB and improve the structural similarity index of imaging results by 10 times. Then we prove the proposed scheme can image the object in three dimensions with a lateral imaging resolution of 512 x 512 and an axial resolution of 4.2 mm in 6.7 s. At last, a high-resolution 3D reconstruction of an object is also achieved by using the photometric stereo algorithm.