论文标题
32x32 spad阵列
Scannerless non-line-of-sight three dimensional imaging with a 32x32 SPAD array
论文作者
论文摘要
我们基于商用的32x32 SPAD摄像头和70 ps脉冲激光器，开发了无扫描仪的非视线三维成像系统。在我们的实验中，可以在3S中同步实现1024个时间直方图，平均时间分辨率约为165 ps。通过过滤后投影的结果显示了可辨别的重建，而使用虚拟波场的结果表现出了更好的质量，类似于通过单像素spad的早期扫描成像系统创建的结果。相比之下，我们的系统在框架频率，功率需求，紧凑性和鲁棒性方面具有巨大的潜在优势。研究结果将为无扫描仪的非视线三维成像应用铺平道路。
We develop a scannerless non-line-of-sight three dimensional imaging system based on a commercial 32x32 SPAD camera combined with a 70 ps pulsed laser. In our experiment, 1024 time histograms can be achieved synchronously in 3s with an average time resolution of about 165 ps. The result with filtered back projection shows a discernable reconstruction while the result using virtual wave field demonstrates a better quality similar to the ones created by earlier scanning imaging systems with single pixel SPAD. Comparatively, our system has large potential advantages in frame frequency, power requirements, compactness and robustness. The research results will pave a path for scannerless non-line-of-sight three dimensional imaging application.
