Noniterative sub-pixel shifting super-resolution lensless digital holography

Heejung Lee; Jongwu Kim; Junwoo Kim; Philjun Jeon; Seung Ah Lee; Dugyoung Kim

doi:10.1364/OE.433719

Noniterative sub-pixel shifting super-resolution lensless digital holography

Heejung Lee, Jongwu Kim, Junwoo Kim, Philjun Jeon, Seung Ah Lee, Dugyoung Kim

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Lensless digital holography (LDH) is gaining considerable attention lately due to a simple experimental setup, wide field-of-view, and three-dimensional (3D) imaging capability. Since the resolution of LDH is limited by the Nyquist frequency of a detector array, the major drawback of LDH is resolution, and a lot of efforts were made to enhance the resolution of LDH. Here we propose and demonstrate a fast noniterative sub-pixel shifting super-resolution technique that can effectively enhance the resolution of LDH by a factor of two. We provide detailed frequency-domain formulae for our noniterative frequency-domain super-resolution method. The validity of our proposed method is experimentally demonstrated both for scattering and phase objects.

Original language	English
Pages (from-to)	29996-30006
Number of pages	11
Journal	Optics Express
Volume	29
Issue number	19
DOIs	https://doi.org/10.1364/OE.433719
Publication status	Published - 2021 Sept 13

Bibliographical note

Funding Information:
Funding. Korea Institute for Advancement of Technology (KIAT), and the Swiss Innovation Agency (Innosuisse) through S.Korea–Switzerland Joint Innovation Project (P0011925); National Research Foundation of Korea (NRF) through the Basic Science Program (2019R1A4A1025958, 2021R1A2C2009090).

Publisher Copyright:
© 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1364/OE.433719

Cite this

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title = "Noniterative sub-pixel shifting super-resolution lensless digital holography",

abstract = "Lensless digital holography (LDH) is gaining considerable attention lately due to a simple experimental setup, wide field-of-view, and three-dimensional (3D) imaging capability. Since the resolution of LDH is limited by the Nyquist frequency of a detector array, the major drawback of LDH is resolution, and a lot of efforts were made to enhance the resolution of LDH. Here we propose and demonstrate a fast noniterative sub-pixel shifting super-resolution technique that can effectively enhance the resolution of LDH by a factor of two. We provide detailed frequency-domain formulae for our noniterative frequency-domain super-resolution method. The validity of our proposed method is experimentally demonstrated both for scattering and phase objects.",

author = "Heejung Lee and Jongwu Kim and Junwoo Kim and Philjun Jeon and Lee, {Seung Ah} and Dugyoung Kim",

note = "Funding Information: Funding. Korea Institute for Advancement of Technology (KIAT), and the Swiss Innovation Agency (Innosuisse) through S.Korea–Switzerland Joint Innovation Project (P0011925); National Research Foundation of Korea (NRF) through the Basic Science Program (2019R1A4A1025958, 2021R1A2C2009090). Publisher Copyright: {\textcopyright} 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.",

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doi = "10.1364/OE.433719",

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T1 - Noniterative sub-pixel shifting super-resolution lensless digital holography

AU - Lee, Heejung

AU - Kim, Jongwu

AU - Kim, Junwoo

AU - Jeon, Philjun

AU - Lee, Seung Ah

AU - Kim, Dugyoung

N1 - Funding Information: Funding. Korea Institute for Advancement of Technology (KIAT), and the Swiss Innovation Agency (Innosuisse) through S.Korea–Switzerland Joint Innovation Project (P0011925); National Research Foundation of Korea (NRF) through the Basic Science Program (2019R1A4A1025958, 2021R1A2C2009090). Publisher Copyright: © 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.

PY - 2021/9/13

Y1 - 2021/9/13

N2 - Lensless digital holography (LDH) is gaining considerable attention lately due to a simple experimental setup, wide field-of-view, and three-dimensional (3D) imaging capability. Since the resolution of LDH is limited by the Nyquist frequency of a detector array, the major drawback of LDH is resolution, and a lot of efforts were made to enhance the resolution of LDH. Here we propose and demonstrate a fast noniterative sub-pixel shifting super-resolution technique that can effectively enhance the resolution of LDH by a factor of two. We provide detailed frequency-domain formulae for our noniterative frequency-domain super-resolution method. The validity of our proposed method is experimentally demonstrated both for scattering and phase objects.

AB - Lensless digital holography (LDH) is gaining considerable attention lately due to a simple experimental setup, wide field-of-view, and three-dimensional (3D) imaging capability. Since the resolution of LDH is limited by the Nyquist frequency of a detector array, the major drawback of LDH is resolution, and a lot of efforts were made to enhance the resolution of LDH. Here we propose and demonstrate a fast noniterative sub-pixel shifting super-resolution technique that can effectively enhance the resolution of LDH by a factor of two. We provide detailed frequency-domain formulae for our noniterative frequency-domain super-resolution method. The validity of our proposed method is experimentally demonstrated both for scattering and phase objects.

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SN - 1094-4087

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EP - 30006

JO - Optics Express

JF - Optics Express

IS - 19

ER -

Noniterative sub-pixel shifting super-resolution lensless digital holography

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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