Intensity-Correlation Synthetic Wavelength Imaging in Dynamic Scattering Media

TL;DR

This paper presents a novel imaging method using second-order correlations and synthetic wavelength holography to achieve high-resolution imaging through thick, dynamic scattering media without phase stability, applicable to biomedical and remote sensing.

Contribution

It introduces a robust imaging technique based on intensity correlations and synthetic wavelength holography that overcomes limitations of traditional methods in dynamic scattering media.

Findings

Successful high-resolution imaging in static media

Effective imaging in dynamic scattering conditions

Method is resilient to phase noise and speckle decorrelation

Abstract

Imaging through dynamic scattering media, such as biological tissue, presents a fundamental challenge due to light scattering and the formation of speckle patterns. These patterns not only degrade image quality but also decorrelate rapidly, limiting the effectiveness of conventional approaches, such as those based on transmission matrix measurements. Here, we introduce an imaging approach based on second-order correlations and synthetic wavelength holography (SWH) to enable robust image reconstruction through thick and dynamic scattering media. By exploiting intensity speckle correlations and using short-exposure intensity images, our method computationally reconstructs images from a hologram without requiring phase stability or static speckles, making it inherently resilient to phase noise. Experimental results demonstrate high-resolution imaging in both static and dynamic scattering scenarios, offering a promising solution for biomedical imaging, remote sensing, and real-time imaging in complex environments.