# Retrieval of non-sparse object through scattering media beyond the memory effect

## TL;DR

This paper introduces a novel optical imaging method combining ptychography and the shower-curtain effect, enabling retrieval of non-sparse objects through scattering media beyond the memory effect, with improved field of view and robustness to dynamics.

## Contribution

The paper presents a new imaging configuration that surpasses the memory effect limitations and is insensitive to dynamic scattering media, enhancing deep biological tissue imaging.

## Key findings

- Successfully retrieved non-sparse samples through scattering media.
- Improved field of view to 2.64mm.
- Demonstrated effectiveness on biological tissue samples.

## Abstract

Optical imaging through scattering media is a commonly confronted with the problem of reconstruction of complex objects and optical memory effect. To solve the problem, here, we propose a novel configuration based on the combination of ptychography and shower-curtain effect, which enables the retrieval of non-sparse samples through scattering media beyond the memory effect. Furthermore, by virtue of the shower-curtain effect, the proposed imaging system is insensitive to dynamic scattering media. Results from the retrieval of hair follicle section demonstrate the effectiveness and feasibility of the proposed method. The field of view is improved to 2.64mm. This present technique will be a potential approach for imaging through deep biological tissue.

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Source: https://tomesphere.com/paper/1907.08778