非视域三维成像激光雷达的研究进展

综述了非视域三维成像激光雷达技术的研究现状及进展。首先介绍了非视域成像技术的产生背景和基本概念，从多种实现技术中选出最接近激光雷达构型的基于激光脉冲飞行时间测量的非视域成像技术作为文中的综述重点。然后分别从成像系统和成像算法两个方面对国内外的研究进展进行了分析总结，可以看出，未来采用SPAD面阵进行无扫描阵列式非视域成像已成为必然的趋势，而能够适配SPAD面阵的非共焦重构算法也将成为研究重点。这种激光成像雷达新体制未来在军事侦察、安防反恐、无人驾驶、灾难救援等领域将有着极其广泛的应用前景。

Research advances on non-line-of-sight three-dimensional imaging lidar

The research status and progress of non-line-of-sight (NLOS) three dimensional imaging lidar were reviewed in this paper. Firstly, the background and basic concepts of NLOS imaging technology were introduced. The NLOS imaging technology based on laser pulse time-of-flight measurement, which was closest to lidar configuration, was selected as the focus of this paper. Then, the research progress of this technology was analyzed and summarized from two aspects of imaging system and imaging algorithm, respectively. It can be seen that scannerless NLOS imaging with SPAD array has become an inevitable trend in the future, and the non-confocal reconstruction algorithm adapting to SPAD array will also become the research focus. This new system of lidar will be widely used in military reconnaissance, security and anti-terrorism, unmanned driving, disaster rescue and other fields in the future.