Imaging through scattering media via spatial-temporal encoded pattern illumination

TL;DR

This paper introduces a non-invasive, efficient computational imaging method using spatial-temporal encoded patterns (STEP) that enables imaging through scattering media with a single-pixel detector, regardless of media motion.

Contribution

The paper presents a novel STEP-based imaging technique that overcomes limitations of existing methods, enabling fast, non-invasive imaging through scattering media with simple hardware.

Findings

Insensitive to media motion

More efficient than correlation-based algorithms

Allows fast imaging in challenging scenarios

Abstract

Optical imaging through scattering media is a long-standing challenge. Although many approaches have been developed to focus light or image objects through scattering media, they are either invasive, restricted to stationary or slowly-moving media, or require high-resolution cameras and complex algorithms to retrieve the images. Here we introduce a computational imaging technique that can overcome these restrictions by exploiting spatial-temporal encoded patterns (STEP). We present non-invasive imaging through scattering media with a single-pixel photodetector. We show that the method is insensitive to the motions of media. We further demonstrate that our image reconstruction algorithm is much more efficient than correlation-based algorithms for single-pixel imaging, which may allow fast imaging in currently unreachable scenarios.