# Snapshot Ptychography on Array cameras

arXiv: https://arxiv.org/abs/2111.03517 · HTML: https://mlsanity.com/paper/2111.03517/

## Key facts

- Cited by 2 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 5 Nov 2021.

## Built on by (most cited first, 2 of 2)

- [Single-shot Phase Retrieval from a Fractional Fourier Transform Perspective](https://mlsanity.com/paper/2311.10950/) (2023)
- [Inverse Synthetic Aperture Fourier Ptychography](https://mlsanity.com/paper/2507.03733/) (2025)

## Abstract (arXiv)

We use convolutional neural networks to recover images optically down-sampled by 6.7× using coherent aperture synthesis over a 16 camera array. Where conventional ptychography relies on scanning and oversampling, here we apply decompressive neural estimation to recover full resolution image from a single snapshot, although as shown in simulation multiple snapshots can be used to improve SNR. In place training on experimental measurements eliminates the need to directly calibrate the measurement system. We also present simulations of diverse array camera sampling strategies to explore how snapshot compressive systems might be optimized.