论文标题
高分辨率多灶LIDAR的设计：在激光脉冲上升时间之外实现较高的分辨率
Design of a High-Resolution Multifocal LIDAR: Enabling higher resolution beyond the laser pulse rise time
论文作者
论文摘要
3D成像越来越多地影响空间，防御，自动化，医疗和汽车行业。最著名的光学3D成像系统是依赖飞行时间（TOF）测量时间的激光系统。 LIDAR系统的深度分辨率受照明信号的上升时间，检测器系统的带宽和信噪比的限制。可以利用焦点梯度从2D摄像头捕获获得3D图像。在这项研究中，我们将基本的LiDAR技术与由景梯度变化的物理测量结合在一起，这些变化是由景深引起的，以使用空间分离的单像素探测器获得高分辨率的3D图像。我们在这里介绍的系统实现了超出事件激光脉冲的上升时间的深度分辨率。
3D imaging is increasingly impacting areas such as space, defense, automation, medical and automotive industries. The most well-known optical 3D imaging systems are LIDAR systems that rely on Time of Flight (ToF) measurement. The depth resolution of the LIDAR systems is limited by the rise time of the illumination signal, bandwidth of the detector systems, and the signal-to-noise ratio. The focal gradients can be utilized to obtain 3D images from 2D camera captures. In this study, we combine the basic LIDAR techniques with a physical measurement of focal gradient changes that are caused by the depth of field, to obtain a high-resolution 3D image using spatially separated single-pixel detectors. The system that we introduce here enables depth resolution that goes beyond the rise time of the incident laser pulse.
