Fingerprint imaging of dry finger using photoacoustics
- Authors
- Choi, Won Young; Park, Kwan Kyu
- Issue Date
- Mar-2017
- Publisher
- ACOUSTICAL SOC AMER AMER INST PHYSICS
- Citation
- JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, v.141, no.3, pp.EL205 - EL209
- Indexed
- SCIE
SSCI
AHCI
SCOPUS
- Journal Title
- JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
- Volume
- 141
- Number
- 3
- Start Page
- EL205
- End Page
- EL209
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/20523
- DOI
- 10.1121/1.4976193
- ISSN
- 0001-4966
- Abstract
- Fingerprint imaging has been widely used in biometric identification systems. This work presents a photoacoustic (PA) fingerprint imaging system that provides acoustic resolution using a pulsed laser and focused ultrasound transducer operating as a receiver. This PA system can measure dry fingers with a wide-range laser field based on the differences in the ultrasound coupling between the fingertip areas contacting and not contacting a solid plate. To demonstrate and validate the image accuracy of the PA system, PA fingerprint images were compared to images captured using a pulse-echo ultrasound system and an ink-pressed fingerprint scan.
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