게시판 최근논문

[Editors Pick] Current Optics and Photonics Vol. 4 no. 5 (2020 October)

한국광학회 hit 31 date 2021-04-05

A Privacy-protection Device Using a Directional Backlight and Facial Recognition
Hyeontaek Lee, Hyunsoo Kim, and Hee-Jin Choi*
Department of Physics and Astronomy, Sejong University, Seoul 05006, Korea


Current Optics and Photonics Vol. 4, No. 5, October 2020, pp. 421-427
https://doi.org/10.3807/COPP.2020.4.5.421 

 

 

Abstract

A novel privacy-protection device to prevent visual hacking is realized by using a directional backlight and facial recognition. The proposed method is able to overcome the limitations of previous privacy-protection methods that simply restrict the viewing angle to a narrow range. The accuracy of user tracking is accomplished by the combination of a time-of-flight sensor and facial recognition with no restriction of detection range. In addition, an experimental demonstration is provided to verify the proposed scheme.