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18‐1: Far Field Imaging Through Liquid Crystal Displays for Biometrics
Author(s) -
Large Timothy,
Emerton Neil,
Lim Sehoon,
Nuesmeyer Chris
Publication year - 2021
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.14649
Subject(s) - backlight , biometrics , liquid crystal display , optics , authentication (law) , computer vision , artificial intelligence , computer graphics (images) , computer science , field (mathematics) , materials science , physics , mathematics , computer security , pure mathematics
A camera is placed behind a standard liquid crystal display with a backlight that is designed to retain a near‐infra‐red image, while simultaneously delivering diffuse illumination in the visible spectrum. The camera image can be used for system log‐on or continuous authentication, without occupying valuable bezel space.