Journal ArticleEvent-based dual photography for transparent scene reconstructionLiu, Xiaomeng; Rego, Joshua D.; Jayasuriya, Suren; Koppal, Sanjeev J.Light transport contains all light information between a light source and an image sensor. As an important application of light transport, dual photography has been a popular research topic, but it is challenged by long acquisition time, low signal-to-noise ratio, and the storage or processing of a large number of measurements. In this Letter, we propose a novel hardware setup that combines a flying-spot micro-electro mechanical system (MEMS) modulated projector with an event camera to implement dual photography for 3D scanning in both line-of-sight (LoS) and non-line-of-sight (NLoS) scenes with a transparent object. In particular, we achieved depth extraction from the LoS scenes and 3D reconstruction of the object in a NLoS scene using event light transport.2023-01-0110433523Optics Letters48513040146-9592https://doi.org/10.1364/OL.4830471909192National Science Foundation