Real-time super-resolution imaging using coded aperture

Yutaro Katano; Teruyoshi Nobukawa; Tetsuhiko Muroi; Kei Hagiwara; Norihiko Ishii

doi:10.1117/12.2608346

9 March 2022 Real-time super-resolution imaging using coded aperture

Yutaro Katano, Teruyoshi Nobukawa, Tetsuhiko Muroi, Kei Hagiwara, Norihiko Ishii

Proceedings Volume PC12014, Emerging Digital Micromirror Device Based Systems and Applications XIV; PC1201404 (2022) https://doi.org/10.1117/12.2608346
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

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.

Conference Presentation

Citation Download Citation

Yutaro Katano, Teruyoshi Nobukawa, Tetsuhiko Muroi, Kei Hagiwara, and 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

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