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5 March 2021 Fourier ptychographic microscopy on a smartphone: high-resolution, wide-field imaging using screen illumination
Kyung Chul Lee, Kyungwon Lee, Jaewoo Jung, Se Hee Lee, Seung Ah Lee
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Proceedings Volume 11632, Optics and Biophotonics in Low-Resource Settings VII; 1163208 (2021) https://doi.org/10.1117/12.2578119
Event: SPIE BiOS, 2021, Online Only
Abstract
We propose a simple smartphone attachment module to realize a portable wide-field high-resolution microscope based on Fourier Ptychographic Microscopy (FPM). Using the smartphone's screen as the illumination and the front camera module for image acquisition, we can construct a stand-alone portable FPM, a microscopy technique that can achieve high resolution by computationally combining a number of variably illuminated low-resolution bright-field and dark-field images through an iterative phase retrieval algorithm. With the custom-built android application that performs in situ calculation for acquisition, reconstruction, and display of the images, we can achieve a true stand-alone portable imaging device for field applications.
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Kyung Chul Lee, Kyungwon Lee, Jaewoo Jung, Se Hee Lee, and Seung Ah Lee "Fourier ptychographic microscopy on a smartphone: high-resolution, wide-field imaging using screen illumination", Proc. SPIE 11632, Optics and Biophotonics in Low-Resource Settings VII, 1163208 (5 March 2021); https://doi.org/10.1117/12.2578119
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KEYWORDS
Microscopy
Imaging systems
Microscopes
Cameras
Illumination engineering
Image enhancement
Optical microscopes
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