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15 June 2020 Fluorescence sectioning micro-endoscopy using hybrid illumination
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Proceedings Volume 11521, Biomedical Imaging and Sensing Conference 2020; 115210M (2020) https://doi.org/10.1117/12.2573214
Event: SPIE Technologies and Applications of Structured Light, 2020, Yokohama, Japan
Abstract
A widefield endoscope with optical sectioning capability using digital micro-mirror device (DMD) is proposed and demonstrated. With the addition of DMD, uniform and grid illumination pattern can be created for HiLo algorithm to remove out-of-focus noise in widefield images. By applying spectral filters to raw images, high frequency in-focus component of uniform illumination image and low frequency in-focus component of grid illumination image can be extracted, respectively. An in-focus image with full resolution can then be reconstructed by combining these two images. To verify the optical sectioning capability of the proposed system, 45μm fluorescent beads and mouse heart tissues were observed. The improvement of signal-to-noise ratio (SNR) can be obviously seen from the results.
© (2020) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Haw Hsiao, Chen-Yen Lin, Kuang-Yuh Huang, and Yuan Luo "Fluorescence sectioning micro-endoscopy using hybrid illumination", Proc. SPIE 11521, Biomedical Imaging and Sensing Conference 2020, 115210M (15 June 2020); https://doi.org/10.1117/12.2573214
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