Image Scanning Method for Vascular Pattern Recognition
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Because vascular patterns inside skin tissue are unique to individuals and impossible to counterfeit, they can be used for biometric identification. However, due to light scattering by skin tissue, obtaining a clear image without imaging the transmitted light using a lens is difficult, which in turn results in a large detection system. In this study, we present a novel method for imaging vascular patterns that uses image scanning with reflected light and no lenses. We numerically confirm that the image scanning method produces a clearer image than imaging methods that do not employ the scanning method. In addition, using a smaller light source and detector produces a clearer image of vascular patterns. At a scan pixel size of 2 µm, we determined that the degree of cross-correlation was G = 0.74.
KeywordsImaging Biological tissue Scattering
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This research was supported by the ICT R&D program of MSIT/IITP, Republic of Korea (1711070427).
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