期刊
JOURNAL OF ROBOTICS AND MECHATRONICS
卷 34, 期 5, 页码 1164-1174出版社
FUJI TECHNOLOGY PRESS LTD
DOI: 10.20965/jrm.2022.p1164
关键词
fluorescence microscope; image intensifier; 3D tracking; high-speed volume feedback; TAG lens
类别
资金
- JST ACCEL [JPM-JAC1601]
In this study, a high-speed and low-latency 3D fluorescence imaging method for robotic microscopes is proposed. The method allows image acquisition at arbitrary focal lengths at a frame rate of 1 kHz, with a low latency of a few milliseconds.
In this study, we propose a high-speed and low-latency 3D fluorescence imaging method for robotic microscopes. The prototype system consists of a focustunable lens called a TAG lens, which operates at several hundred kHz, an image intensifier (I.I.) that enhances faint light such as fluorescence, and a highspeed vision system that can transfer acquired images to the host PC in 500 Hz. The proposed method can acquire images at arbitrary focal lengths at frame rates on the order of 1 kHz by synchronizing the focal-length fluctuation of the TAG lens and the exposure timing of the I.I., whose duration is a few hundred nanoseconds. The low-latency we aim for in this paper is on the order of a few milliseconds. A prototype system was developed to validate the proposed method. High-speed 3D tracking of the Brownian motion of a fluorescent bead of 0.5 mu m diameter was demonstrated to verify the feedback performance of the proposed low-latency 3D fluorescence imaging method.
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