Unspecified Tianye Meng Profile

Tianye Meng

at Fujian Normal Univ

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Proceedings Article | 4 April 2023 Paper

Fast photoacoustic imaging technology for deep structure information of finger

Tianye Meng, Hui Li, Yubin Liu

Proceedings Volume 12617, 126176E (2023) https://doi.org/10.1117/12.2666706

KEYWORDS: Photoacoustic imaging, Imaging systems, Laser tissue interaction, Tissue optics, Skin, Photoacoustic spectroscopy, Information security, Veins

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In this paper, we exploited the fast-imaging technology for the deep structure of finger based on photoacoustic imaging, which adopted the self-designed 128-ring-array fast photoacoustic imaging system to acquire the latent inside information of finger. The home-made photoacoustic imaging system has the merits of fast imaging, high resolution and deep imaging depth. Specifically, our system could obtain a cross section scan of finger within 0.05 or 0.1s, achieve the resolution of approach 180μm and image the latent inside information of finger as well as extend the imaging depth over 5 cm in chicken breast tissue at the laser density of 20 mJ/cm2 (≤ANSI safety limit). In this work, we obtained the finger anatomical information of skin tissue, blood vessel tissue, and the information of tendon tissue and phalanx tissue which is relatively difficult to obtain by means of photoacoustic imaging. So, we will be able to restore an overall internal structure of a finger including its external shape its internal tendon structure and its internal phalanx structure or containing its blood vessel structure. And that more information from different angles can make its identification more accurate. It is prospective that the deep structure of finger we get by our fast photoacoustic imaging technology will help to provide more possibilities for finger identification and lead to more credible technology for human about relevant information collection and resolution.

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