用单光子相机跟踪隐藏物体
Tracking hidden objects with a single-photon camera
摘要：
当身体绕过障碍物是不可能的或危险的时候，知道角落或墙后面隐藏着什么的能力提供了一个至关重要的优势。先前针对这一挑战的解决方案受到例如其物理尺寸、反射表面的要求或长数据采集时间的限制。这些都阻碍了在实验室之外部署该技术，也阻碍了重大进展的发展，例如跟踪大规模隐藏物体的移动。我们展示了一种非视线激光测距技术，该技术依赖于仅使用地板表面发送和检测散射在障碍物周围的光的能力。单光子雪崩二极管（SPAD）摄像机探测到隐藏物体的反向散射光，然后可以以厘米的精度定位，同时跟踪其运动。这种非视线激光测距系统也被证明可以在人体长度范围内工作，为各种现实生活中的情况铺平了道路。
英文摘要：
The ability to know what is hidden around a corner or behind a wall provides a crucial advantage when physically going around the obstacle is impossible or dangerous. Previous solutions to this challenge were constrained e.g. by their physical size, the requirement of reflective surfaces or long data acquisition times. These impede both the deployment of the technology outside the laboratory and the development of significant advances, such as tracking the movement of large-scale hidden objects. We demonstrate a non-line-of-sight laser ranging technology that relies upon the ability, using only a floor surface, to send and detect light that is scattered around an obstacle. A single-photon avalanche diode (SPAD) camera detects light back-scattered from a hidden object that can then be located with centimetre precision, simultaneously tracking its movement. This non-line-of-sight laser ranging system is also shown to work at human length scales, paving the way for a variety of real-life situations.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
