Abstract

Accessing the point-spread function (PSF) of a complex optical system is important for a variety of imaging applications. However, placing an invasive point source is often impractical, and estimating it blindly with multiple frames is slow and requires a complex nonlinear optimization. Here, we introduce a simple single-shot method to noninvasively recover the accurate PSF of an isoplanatic imaging system, in the context of multiple light scattering. Our approach is based on the reconstruction of any unknown sparse hidden object using the autocorrelation imaging technique, followed by a deconvolution with a blur kernel derived from the statistics of a speckle pattern. A deconvolution on the camera image then retrieves the accurate PSF of the system, enabling further imaging applications. We demonstrate numerically and experimentally the effectiveness of this approach compared to previous deconvolution techniques.

© 2020 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Imaging through scattering layers exceeding memory effect range with spatial-correlation-achieved point-spread-function

Long Li, Quan Li, Shuai Sun, Hui-Zu Lin, Wei-Tao Liu, and Ping-Xing Chen
Opt. Lett. 43(8) 1670-1673 (2018)

Prior-information-free single-shot scattering imaging beyond the memory effect

Xiaoyu Wang, Xin Jin, Junqi Li, Xiaocong Lian, Xiangyang Ji, and Qionghai Dai
Opt. Lett. 44(6) 1423-1426 (2019)

Single-shot diffraction-limited imaging through scattering layers via bispectrum analysis

Tengfei Wu, Ori Katz, Xiaopeng Shao, and Sylvain Gigan
Opt. Lett. 41(21) 5003-5006 (2016)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Supplementary Material (2)

NameDescription
» Code 1       This is a package of source codes for implementing the single-shot PSF recovery of a memory effect based scattering imaging system.
» Supplement 1       This document contains the experimental data of single-shot speckle of Digit 2 and Digit 3, respectively.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (6)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription