Single-shot fast 3D imaging through scattering media using structured illumination

TL;DR

This paper introduces a rapid single-shot 3D imaging method through scattering media using structured illumination, enabling quick visualization of dynamic objects without iterative processes or complex setups.

Contribution

It presents a novel single-shot technique for 3D imaging behind scattering media using structured light, requiring only one calibration and capable of handling dynamic and multispectral targets.

Findings

Successfully images dynamic 3D objects behind scattering media

Works with single, multiple, and multispectral targets

Requires only one calibration step

Abstract

Conventional approaches for 3D imaging in or through scattering media are usually limited to 2D reconstruction of objects at some discontinuous locations, although the time-consuming iteration, guide-star, or complex system are implemented. How to quickly visualize dynamic 3D objects behind scattering media is still an open issue. Here, by using structured light illumination, we propose a single-shot technique that can quickly acquire continuous 3D surfaces of objects hidden behind the diffuser. The proposed method can realize the 3D imaging of single, multiple, and dynamic targets from the speckled structured light patterns under broad or narrow band light illumination, in which only once calibration of the imaging setup is needed before conducting the imaging. Our approach paves the way to quickly visualize dynamic objects behind scattering media in 3D and multispectral.