Independent component analysis of hyperspectral data measured from overlapping latent fingermarks: Forensic potential of independent component images

Atsushi Nakamura; Norimitsu Akiba; Kazuhito Hibino; Hidetoshi Kakuda; Karen Kawada; Masashi Karasawa; Mari Sakai; Takayuki Sota

doi:10.1016/j.forsciint.2022.111549

Independent component analysis of hyperspectral data measured from overlapping latent fingermarks: Forensic potential of independent component images

Forensic Sci Int. 2023 Feb:343:111549. doi: 10.1016/j.forsciint.2022.111549. Epub 2022 Dec 29.

Authors

Atsushi Nakamura¹, Norimitsu Akiba², Kazuhito Hibino³, Hidetoshi Kakuda⁴, Karen Kawada⁵, Masashi Karasawa⁶, Mari Sakai⁷, Takayuki Sota⁸

Affiliations

¹ Waseda Research Institute for Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555, Japan. Electronic address: anakamura@waseda.jp.
² Physics Section, National Research Institute of Police Science, Kashiwa, Chiba 277-0882, Japan. Electronic address: akiba@nrips.go.jp.
³ Identification Division, National Police Agency, Chiyoda, Tokyo 100-8974, Japan. Electronic address: khibino07@npa.go.jp.
⁴ Physics Section, National Research Institute of Police Science, Kashiwa, Chiba 277-0882, Japan. Electronic address: kakuda@nrips.go.jp.
⁵ Department of Electrical Engineering and Bioscience, Waseda University, Shinjuku, Tokyo 169-8555, Japan. Electronic address: k.karen@ruri.waseda.jp.
⁶ Department of Electrical Engineering and Bioscience, Waseda University, Shinjuku, Tokyo 169-8555, Japan. Electronic address: ma3_kara@asagi.waseda.jp.
⁷ Department of Electrical Engineering and Bioscience, Waseda University, Shinjuku, Tokyo 169-8555, Japan. Electronic address: m.sakai0302@fuji.waseda.jp.
⁸ Waseda Research Institute for Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555, Japan; Department of Electrical Engineering and Bioscience, Waseda University, Shinjuku, Tokyo 169-8555, Japan. Electronic address: tkyksota@waseda.jp.

PMID: 36634431
DOI: 10.1016/j.forsciint.2022.111549

Abstract

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.

Keywords: Fingermark; Fingermark collation; Fluorescence hyperspectral data; Forensic value; Independent component analysis; Overlapping fingermarks.