Single-pixel imaging with Fourier filtering: application to vision through scattering media

TL;DR

This paper introduces a Fourier filtering-based single-pixel imaging method that enhances contrast when imaging through scattering media, outperforming conventional systems by preserving frequency content and improving image contrast.

Contribution

It demonstrates that Fourier gating in single-pixel imaging improves imaging contrast through scattering media, offering advantages over traditional imaging methods.

Findings

Single-pixel camera does not reduce object frequency content.

Fourier gating improves contrast in scattering media.

Single-pixel imaging outperforms conventional imaging in scattering conditions.

Abstract

We present a novel approach for imaging through scattering media that combines the principles of Fourier spatial filtering and single-pixel imaging. We compare the performance of our single-pixel imaging setup with that of a conventional system. Firstly, we show that a single-pixel camera does not reduce the frequency content of the object, even when a small pinhole is used as a low-pass filter. Second, we show that the introduction of Fourier gating improves the contrast of imaging through scattering media in both optical systems. We conclude that single-pixel imaging fits better than conventional imaging on imaging through scattering media by Fourier gating.