Subsampled phase retrieval for temporal resolution enhancement in lensless on-chip holographic video.

Published

Journal Article

On-chip holographic video is a convenient way to monitor biological samples simultaneously at high spatial resolution and over a wide field-of-view. However, due to the limited readout rate of digital detector arrays, one often faces a tradeoff between the per-frame pixel count and frame rate of the captured video. In this report, we propose a subsampled phase retrieval (SPR) algorithm to overcome the spatial-temporal trade-off in holographic video. Compared to traditional phase retrieval approaches, our SPR algorithm uses over an order of magnitude less pixel measurements while maintaining suitable reconstruction quality. We use an on-chip holographic video setup with pixel sub-sampling to experimentally demonstrate a factor of 5.5 increase in sensor frame rate while monitoring the in vivo movement of Peranema microorganisms.

Full Text

Duke Authors

Cited Authors

  • Ryu, D; Wang, Z; He, K; Zheng, G; Horstmeyer, R; Cossairt, O

Published Date

  • March 2017

Published In

Volume / Issue

  • 8 / 3

Start / End Page

  • 1981 - 1995

PubMed ID

  • 28663877

Pubmed Central ID

  • 28663877

Electronic International Standard Serial Number (EISSN)

  • 2156-7085

International Standard Serial Number (ISSN)

  • 2156-7085

Digital Object Identifier (DOI)

  • 10.1364/BOE.8.001981

Language

  • eng