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한빛사논문
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Sci. Adv., Jan 03 2025, 11 (1) | https://doi.org/10.1126/sciadv.ads3389
Biologically inspired microlens array camera for high-speed and high-sensitivity imaging
Hyun-Kyung Kim 1,2, Young-Gil Cha 1,2, Jae-Myeong Kwon 1,2, Sang-In Bae 1,2, Kisoo Kim 1,2, Kyung-Won Jang 1,2, Yong-Jin Jo 3, Min H Kim 4*, Ki-Hun Jeong 1,2*
1Department of Bio and Brain engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
2KAIST Institute for Health Science and Technology (KIHST), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
3Unmanned Ground Systems Team, LIGNex1, 333 Pangyo-ro, Bundang-gu, Gyeonggi-do, Seongnam-si 13488, Republic of Korea.
4School of Computing, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
*Corresponding authors: M.H.K., K.-H.J.
1Department of Bio and Brain engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
2KAIST Institute for Health Science and Technology (KIHST), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
3Unmanned Ground Systems Team, LIGNex1, 333 Pangyo-ro, Bundang-gu, Gyeonggi-do, Seongnam-si 13488, Republic of Korea.
4School of Computing, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
*Corresponding authors: M.H.K., K.-H.J.
Abstract
Nocturnal and crepuscular fast-eyed insects often exploit multiple optical channels and temporal summation for fast and low-light imaging. Here, we report high-speed and high-sensitive microlens array camera (HS-MAC), inspired by multiple optical channels and temporal summation for insect vision. HS-MAC features cross-talk-free offset microlens arrays on a single rolling shutter CMOS image sensor and performs high-speed and high-sensitivity imaging by using channel fragmentation, temporal summation, and compressive frame reconstruction. The experimental results demonstrate that HS-MAC accurately measures the speed of a color disk rotating at 1950 rpm, recording fast sequences at 9120 fps with low noise equivalent irradiance (0.43 μW/cm2). Besides, HS-MAC visualizes the necking pinch-off of a pool fire flame in dim light conditions below one thousandth of a lux. The compact high-speed low-light camera can offer a distinct route for high-speed and low-light imaging in mobile, surveillance, and biomedical applications.
논문정보
- Research article
- 2025년 01월 (BRIC 등록일 2025-01-03)
- 국내 연구진
- 바이오·의료융합 > 바이오센싱 및 나노바이오물질
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