Latent fingerprint residue detection method using Sagnac Fourier transform imaging spectroscopy

Xueqiong Bai, Wenming Yang, Weitao Song*, Ningfang Liao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

We propose a new method to detect latent fingerprints and their residues based on Sagnac ultraviolet Fourier transform imaging spectroscopy. The three-dimensional data cube including two-dimensional images and spectrum dimensions can be obtained by the new hyperspectral imaging technique. The method to inhibit the redundancy from the spectra-image data is also presented, which includes the self-adaptive differential filtering, the apodization algorithm, and a fast Fourier transform method. The whole process is also discussed in detail. Not only the latent fingerprint but also its residues’ distribution are provided in experimental results, and the proposed method is demonstrated.

Original languageEnglish
Pages (from-to)5534-5539
Number of pages6
JournalApplied Optics
Volume60
Issue number19
DOIs
Publication statusPublished - 1 Jul 2021

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