Publication

A Reconfigurable $256 \times 128$ SPAD Imager with Gradient Gating for Single-Photon Counting, LiDAR, and Non-Line-of-Sight Imaging

2025

Abstract

A reconfigurable 256×128 SPAD sensor is proposed for single-photon counting (SPC), LiDAR, and non-line-of-sight (NLOS) imaging. It features gradient time-gate with 16 phases with 0.12 n s to 3.8 ns intervals and minimum gate window of 400 ps. In SPC mode, the sensor reaches a frame rate of 42.24 kfps with 9-bit intensity depth. In time-resolved mode, it reaches 39ps (LSB) time stamping. The sensor suitability is demonstrated through SPC, LiDAR, and NLOS experiments.

Official source

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

2025

Abstract

Official source

Related concepts (31)

Sight (device)

A sight or sighting device is any device used to assist in precise visual alignment (i.e. aiming) of ranged weapons, surveying instruments, aircraft equipment or optical illumination equipments with the intended target. Sights can be a simple set or system of physical markers that serve as visual references for directly aligning the user's line of sight with the target (such as iron sights on firearms), or optical instruments that provide an optically enhanced — often magnified — target image aligned in the same focus with an aiming point (e.

Reflector sight

A reflector sight or reflex sight is an optical sight that allows the user to look through a partially reflecting glass element and see an illuminated projection of an aiming point or some other image superimposed on the field of view. These sights work on the simple optical principle that anything at the focus of a lens or curved mirror (such as an illuminated reticle) will appear to be sitting in front of the viewer at infinity.

Iron sights

Iron sights are a system of physical alignment markers (usually made of metallic material) used as a sighting device to assist the accurate aiming of ranged weapons (such as a firearm, airgun, crossbow and compound bow), or less commonly as a primitive finder sight for optical telescopes. The earliest sighting device, it relies completely on the viewer's naked eye (mostly under ambient lighting), and is distinctly different to optical sights such as telescopic sights, reflector (reflex) sights, holographic sights and laser sights, which make use of optical manipulation and/or active illumination.

Related publications (1)

A Reconfigurable $256 \times 128$ SPAD Imager with Gradient Gating for Single-Photon Counting, LiDAR, and Non-Line-of-Sight Imaging

Chat with Graph Search

Gene therapy and bioengineering for retinal diseases: what is the future?