TY - JOUR
T1 - Independent component analysis of hyperspectral data measured from overlapping latent fingermarks
T2 - Forensic potential of independent component images
AU - Nakamura, Atsushi
AU - Akiba, Norimitsu
AU - Hibino, Kazuhito
AU - Kakuda, Hidetoshi
AU - Kawada, Karen
AU - Karasawa, Masashi
AU - Sakai, Mari
AU - Sota, Takayuki
N1 - Funding Information:
This work was supported in part by the “R&D Program for Implementation of Anti-Crime and Anti-Terrorism Technologies for a Safe and Secure Society” from the “Funds for integrated Promotion of Social Reform and Research and Development” of Ministry of Education, Culture, Sports, Science and Technology , a division of the Japanese Government; JSPS KAKENHI Grant Number 17K01385 . Development of the potable hyperspectral imager, preparation of double overlapping fingermark samples and accumulation of their hyperspectral data were supported by Ministry of Education, Culture, Sports, Science and Technology, a division of the Japanese Government. Independent component analysis of the hyperspectral data and interpretation of the results were supported by Japan Society for the Promotion of Science .
Publisher Copyright:
© 2023 The Authors
PY - 2023/2
Y1 - 2023/2
N2 - Overlapping fingermark images are sometimes discarded because fingermark collation for the individual fingermarks is difficult. Fluorescence hyperspectral data (HSD) measured using the models of double overlapping fingermarks obtained under the excitation of a high-power, continuous wave, green laser is suitable for obtaining individual fingermark images. However, there are limitations such as the problems on each spectrum of the individual fingermark and the forensic value of the obtained images. In this study, independent component analysis (ICA) was applied to the fluorescence HSD obtained from the models of doubly overlapping fingermarks, to obtain independent component (IC) spectra and the corresponding IC images. Forensic value of the obtained IC images was examined, considering the possibility of fingermark collation in masked fashion to the model sample information. The IC images obtained from the HSD had enough potential to enable extracting twelve minutiae required for fingermark collation if the image quality was good.
AB - Overlapping fingermark images are sometimes discarded because fingermark collation for the individual fingermarks is difficult. Fluorescence hyperspectral data (HSD) measured using the models of double overlapping fingermarks obtained under the excitation of a high-power, continuous wave, green laser is suitable for obtaining individual fingermark images. However, there are limitations such as the problems on each spectrum of the individual fingermark and the forensic value of the obtained images. In this study, independent component analysis (ICA) was applied to the fluorescence HSD obtained from the models of doubly overlapping fingermarks, to obtain independent component (IC) spectra and the corresponding IC images. Forensic value of the obtained IC images was examined, considering the possibility of fingermark collation in masked fashion to the model sample information. The IC images obtained from the HSD had enough potential to enable extracting twelve minutiae required for fingermark collation if the image quality was good.
KW - Fingermark
KW - Fingermark collation
KW - Fluorescence hyperspectral data
KW - Forensic value
KW - Independent component analysis
KW - Overlapping fingermarks
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U2 - 10.1016/j.forsciint.2022.111549
DO - 10.1016/j.forsciint.2022.111549
M3 - Article
C2 - 36634431
AN - SCOPUS:85146099809
SN - 0379-0738
VL - 343
JO - Forensic Science International
JF - Forensic Science International
M1 - 111549
ER -