論文

査読有り 国際誌
2022年7月4日

Computational see-through screen camera based on a holographic waveguide device

Optics Express
  • Xiao Chen
  • ,
  • Noriyuki Tagami
  • ,
  • Hiroki Konno
  • ,
  • Tomoya Nakamura
  • ,
  • Saori Takeyama
  • ,
  • Xiuxi Pan
  • ,
  • Masahiro Yamaguchi

30
14
開始ページ
25006
終了ページ
25006
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1364/oe.462111
出版者・発行元
Optica Publishing Group

This study proposes a novel computational imaging system that integrates a see-through screen (STS) with volume holographic optical elements (vHOEs) and a digital camera unit. Because of the unique features of the vHOE, the STS can function as a holographic waveguide device (HWD) and enable the camera to capture the frontal image when the user gazes at the screen. This system not only provides an innovative solution to a high-quality video communication system by realizing eye-contact but also contributes to other visual applications due to its refined structure. However, there is a dilemma in the proposed imaging system: for a wider field of view, a larger vHOE is necessary. If the size of the vHOE is larger, the light rays from the same object point are diffracted at different Bragg conditions and reflect a different number of times, which causes blurring of the captured image. The system imaging process is analyzed by ray tracing, and a digital image reconstruction method was employed to obtain a clear picture in this study. Optical experiments confirmed the effectiveness of the proposed HWD-STS camera.

リンク情報
DOI
https://doi.org/10.1364/oe.462111
URL
https://opg.optica.org/viewmedia.cfm?URI=oe-30-14-25006
URL
https://opg.optica.org/viewmedia.cfm?URI=oe-30-14-25006&seq=0
ID情報
  • DOI : 10.1364/oe.462111
  • eISSN : 1094-4087

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