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用于高速和高灵敏度成像的生物启发式微透镜阵列相机。

Biologically inspired microlens array camera for high-speed and high-sensitivity imaging.

作者信息

Kim Hyun-Kyung, Cha Young-Gil, Kwon Jae-Myeong, Bae Sang-In, Kim Kisoo, Jang Kyung-Won, Jo Yong-Jin, Kim Min H, Jeong Ki-Hun

机构信息

Department of Bio and Brain engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.

KAIST 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.

出版信息

Sci Adv. 2025 Jan 3;11(1):eads3389. doi: 10.1126/sciadv.ads3389. Epub 2025 Jan 1.

DOI:10.1126/sciadv.ads3389
PMID:39742496
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11691699/
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/cm). 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.

摘要

夜间和晨昏活动的复眼昆虫常常利用多种光学通道和时间总和进行快速和低光成像。在此，我们报告了受昆虫视觉的多种光学通道和时间总和启发而设计的高速高灵敏度微透镜阵列相机（HS-MAC）。HS-MAC在单个滚动快门CMOS图像传感器上具有无串扰的偏移微透镜阵列，并通过通道分割、时间总和和压缩帧重建进行高速高灵敏度成像。实验结果表明，HS-MAC能够准确测量以1950转/分钟旋转的彩色圆盘的速度，以9120帧/秒记录快速序列，且等效噪声辐照度低（0.43微瓦/平方厘米）。此外，HS-MAC能够在低于千分之一勒克斯的昏暗光线下可视化池火火焰的缩颈 pinch-off。这种紧凑的高速低光相机可为移动、监控和生物医学应用中的高速和低光成像提供一条独特的途径。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/01c5/11691699/3de4a64a379b/sciadv.ads3389-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/01c5/11691699/8a1486006e52/sciadv.ads3389-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/01c5/11691699/b92b2354bf60/sciadv.ads3389-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/01c5/11691699/0c990d46fbd4/sciadv.ads3389-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/01c5/11691699/3de4a64a379b/sciadv.ads3389-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/01c5/11691699/8a1486006e52/sciadv.ads3389-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/01c5/11691699/b92b2354bf60/sciadv.ads3389-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/01c5/11691699/0c990d46fbd4/sciadv.ads3389-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/01c5/11691699/3de4a64a379b/sciadv.ads3389-f4.jpg

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