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We configured a coded aperture-based real-time super-resolution imaging system using digital micromirror device (DMD). We encoded an object with 128 random patterns using a DMD that can spatially modulate at high speed. ADMM (Alternating Direction Method of Multiplier) was used as an algorithm to solve the inverse problem with a small number of iterations and low computational cost. It took 0.52 seconds to acquire the low-resolution coded images and 0.07 seconds to reconstruct a super-resolution image from them. As a result, we confirmed 1.7 fps imaging capable of acquiring 16x super-resolved 128x128 pixel images in the horizontal and vertical directions.
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Yutaro Katano, Teruyoshi Nobukawa, Tetsuhiko Muroi, Kei Hagiwara, Norihiko Ishii, "Real-time super-resolution imaging using coded aperture," Proc. SPIE PC12014, Emerging Digital Micromirror Device Based Systems and Applications XIV, PC1201404 (9 March 2022); https://doi.org/10.1117/12.2608346