Snapshot ptychography on array cameras

Chengyu Wang, Minghao Hu, Yuzuru Takashima, Timothy J. Schulz, David J. Brady

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


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, herewe 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 signal-to-noise ratio (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.

Original languageEnglish (US)
Pages (from-to)2585-2598
Number of pages14
JournalOptics Express
Issue number2
StatePublished - Jan 17 2022

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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