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  • Received: May. 22, 2019

    Accepted: Jun. 26, 2019

    Posted: Sep. 12, 2019

    Published Online: Sep. 12, 2019

    The Author Email: Jigang Wu (

    DOI: 10.3788/COL201917.110901

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    Mingjun Wang, Shaodong Feng, Jigang Wu. Pixel super-resolution lensless in-line holographic microscope with hologram segmentation[J]. Chinese Optics Letters, 2019, 17(11): 110901

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Chinese Optics Letters, Vol. 17, Issue 11, 110901 (2019)

Pixel super-resolution lensless in-line holographic microscope with hologram segmentation

Mingjun Wang, Shaodong Feng, and Jigang Wu*

Author Affiliations

  • Biophotonics Laboratory, University of Michigan—Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai 200240, China


We propose a resolution enhancement method for a lensless in-line holographic microscope (LIHM) by combining the hologram segmentation and pixel super-resolution (PSR) techniques. Our method is suitable for imaging specific target objects in samples, where the in-line hologram is disturbed by other objects in the samples. The resolution-enhancement capability of our method was proved by numerical simulations and imaging experiments while using a standard resolution target in a two-layer setup. We also applied our LIHM system to image the sample of living algae Euglena gracilis in water solution for further demonstration.

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