Photoacoustic tomography of fingerprint and underlying vasculature for improved biometric identification

Abstract Capitalizing on the photoacoustic effect, we developed a new fingerprint sensing system that can reveal both fingerprints and underlying vascular structures at a high spatial resolution. Our system is built on a 15 MHz linear transducer array, a research ultrasound system, and a 532-nm puls...

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Autores principales:	Wenhan Zheng, Diana Lee, Jun Xia
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0e338b58d8424bccbbc8fce02681adae
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spelling	oai:doaj.org-article:0e338b58d8424bccbbc8fce02681adae2021-12-02T15:29:03ZPhotoacoustic tomography of fingerprint and underlying vasculature for improved biometric identification10.1038/s41598-021-97011-12045-2322https://doaj.org/article/0e338b58d8424bccbbc8fce02681adae2021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97011-1https://doaj.org/toc/2045-2322Abstract Capitalizing on the photoacoustic effect, we developed a new fingerprint sensing system that can reveal both fingerprints and underlying vascular structures at a high spatial resolution. Our system is built on a 15 MHz linear transducer array, a research ultrasound system, and a 532-nm pulsed laser. A 3D image was obtained by scanning the linear array over the fingertip. The acquired fingerprint images strongly agreed with the images acquired from ultrasound. Additional experiments were also conducted to investigate the effect of acoustic coupling. We discovered that high-quality fingerprint and vessel images can be acquired from both wet and dry fingers using our photoacoustic system. The reduced subdermal features in dry coupling can be enhanced through post-processing. Compared to existing fingerprint scanners, the photoacoustic approach provides a higher quality 3D image of the fingerprint, as well as unique subdermal vasculature structures, making the system almost impossible to counterfeit.Wenhan ZhengDiana LeeJun XiaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Wenhan Zheng Diana Lee Jun Xia Photoacoustic tomography of fingerprint and underlying vasculature for improved biometric identification
description	Abstract Capitalizing on the photoacoustic effect, we developed a new fingerprint sensing system that can reveal both fingerprints and underlying vascular structures at a high spatial resolution. Our system is built on a 15 MHz linear transducer array, a research ultrasound system, and a 532-nm pulsed laser. A 3D image was obtained by scanning the linear array over the fingertip. The acquired fingerprint images strongly agreed with the images acquired from ultrasound. Additional experiments were also conducted to investigate the effect of acoustic coupling. We discovered that high-quality fingerprint and vessel images can be acquired from both wet and dry fingers using our photoacoustic system. The reduced subdermal features in dry coupling can be enhanced through post-processing. Compared to existing fingerprint scanners, the photoacoustic approach provides a higher quality 3D image of the fingerprint, as well as unique subdermal vasculature structures, making the system almost impossible to counterfeit.
format	article
author	Wenhan Zheng Diana Lee Jun Xia
author_facet	Wenhan Zheng Diana Lee Jun Xia
author_sort	Wenhan Zheng
title	Photoacoustic tomography of fingerprint and underlying vasculature for improved biometric identification
title_short	Photoacoustic tomography of fingerprint and underlying vasculature for improved biometric identification
title_full	Photoacoustic tomography of fingerprint and underlying vasculature for improved biometric identification
title_fullStr	Photoacoustic tomography of fingerprint and underlying vasculature for improved biometric identification
title_full_unstemmed	Photoacoustic tomography of fingerprint and underlying vasculature for improved biometric identification
title_sort	photoacoustic tomography of fingerprint and underlying vasculature for improved biometric identification
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/0e338b58d8424bccbbc8fce02681adae
work_keys_str_mv	AT wenhanzheng photoacoustictomographyoffingerprintandunderlyingvasculatureforimprovedbiometricidentification AT dianalee photoacoustictomographyoffingerprintandunderlyingvasculatureforimprovedbiometricidentification AT junxia photoacoustictomographyoffingerprintandunderlyingvasculatureforimprovedbiometricidentification
_version_	1718387127511678976

Photoacoustic tomography of fingerprint and underlying vasculature for improved biometric identification

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