Improvement of Depth Perception by Reduction of Vergence-Accommodation Conflict Using Cylindrical Lenses

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  • Mano Yuichiro
    Graduate School of Systems and Information Engineering, Univ. of Tsukuba
  • Kakeya Hideki
    Graduate School of Systems and Information Engineering, Univ. of Tsukuba

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  • シリンダーレンズを用いた輻輳調節矛盾の低減による奥行き知覚精度の向上
  • シリンダー レンズ オ モチイタ フクソウ チョウセツ ムジュン ノ テイゲン ニ ヨル オクユキ チカク セイド ノ コウジョウ

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Abstract

We propose and analyze a novel optics method that combines cylindrical lenses and embedded striped patterns to reduce vergence-accommodation conflict in stereoscopic vision. The proposed method enables the viewer see an image that includes high frequency striped patterns through a cylindrical lens. When viewers are shown such a pattern the depth at which their eyes focus depends on the inclination angle of the stripes, for the cylindrical lens works as a lens with different focal length depending on the orientation of lines. To control the status of accommodation correctly, we obtained the correspondence between the inclination angle of stripes and the focusing distance based on optical calculation. Optometric experiments demonstrated that using a refractometer with the proposed method can induce the desired focal accommodation of the viewers as expected. In addition, psychological experiments demonstrated that the proposed method can improve the precision of viewers' depth perception.

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