Enhancement of single-shot lensless super-resolution phase imaging by preliminary observations

Péter Kocsis; Igor Shevkunov; Vladimir Katkovnik; Karen Egiazarian

doi:10.1364/DH.2021.DW5C.2

OSA Imaging and Applied Optics Congress 2021 (3D, COSI, DH, ISA, pcAOP)
OSA Technical Digest (Optica Publishing Group, 2021),
paper DW5C.2
•https://doi.org/10.1364/DH.2021.DW5C.2

Enhancement of single-shot lensless super-resolution phase imaging by preliminary observations

Péter Kocsis, Igor Shevkunov, Vladimir Katkovnik, and Karen Egiazarian

Digital Holography and Three-Dimensional Imaging 2021

Washington, DC United States
19–23 July 2021
ISBN: 978-1-943580-89-7

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Holographic and Referenceless Methods (DW5C)

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P. Kocsis, I. Shevkunov, V. Katkovnik, and K. Egiazarian, "Enhancement of single-shot lensless super-resolution phase imaging by preliminary observations," in OSA Imaging and Applied Optics Congress 2021 (3D, COSI, DH, ISA, pcAOP), H. Hua, B. Javidi, M. Martinez-Corral, O. Matoba, A. Stern, S. Thibault, T. Alieva, J. Ke, F. Willomitzer, F. Okten, P. Silveira, P. Banerjee, E. Stoykova, D. Chu, J. Park, F. Imai, C. Joo, M. Digman, D. Gardner, S. Gladysz, D. LeMaster, S. Basu, and O. Korotkova, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper DW5C.2.

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Abstract

Algorithm enhancements are proposed for single-shot phase retrieval to reduce loss from ill-conditioning. The approach is based on prior observations, improved diffrac- tion pattern up-sampling, and updated filters. High-quality super-resolved reconstructions are demonstrated in simulation.

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