Microlens array camera with variable apertures for single-shot high dynamic range (HDR) imaging

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We report a microlens array camera with variable apertures (MACVA) for high dynamic range (HDR) imaging by using microlens arrays with various sizes of apertures. The MACVA comprises variable apertures, microlens arrays, gap spacers, and a CMOS image sensor. The microlenses with variable apertures capture low dynamic range (LDR) images with different f-stops under single-shot exposure. The reconstructed HDR images clearly exhibit expanded dynamic ranges surpassing LDR images as well as high resolution without motion artifacts, comparable to the maximum MTF50 value observed among the LDR images. This compact camera provides, what we believe to be, a new perspective for various machine vision or mobile devices applications.
Publisher
OPTICAL SOC AMER
Issue Date
2023-08
Language
English
Article Type
Article
Citation

OPTICS EXPRESS, v.31, no.18, pp.29589 - 29595

ISSN
1094-4087
DOI
10.1364/OE.498763
URI
http://hdl.handle.net/10203/314636
Appears in Collection
CS-Journal Papers(저널논문)BiS-Journal Papers(저널논문)
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