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Proceedings Paper

Foveated high-resolution light-field system based on integral imaging for near-eye displays
Author(s): Gyohyun Koo; Dooseub Shin; Jia Chee Leong; Yong Hyub Won
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Paper Abstract

The visual discomfort caused by vergence-accommodation conflict (VAC) and low angular resolution has been one of the main issues for near eye display devices. Although numerous researches on light-field displays have been presented as possible solutions to reduce the discomfort by reproducing depth cues, the resolution degradation of the system is still a challenging problem. In this paper, we demonstrate a high-resolution light-field near-eye display based on integral imaging using foveated imaging system with two display panels and an optical combiner. The concept of foveated imaging system is based on the fact that human eyes perceives images with the highest sensitivity only in the central vision which covers about 5° of the visual field, and not in the peripheral vision. The first display panel, which is coupled with a lens array, is optically minified to provide resolution-enhanced light-field 3D images with relatively high pixel density for the central foveal area, and the second one offers background images with wide field-of-view (FOV) for the surrounding area. By combining these two images with an optical combiner, it is possible to achieve foveated light-field 3D images concentrated on the central foveal area with highly enhanced resolution while providing wide FOV for the peripheral area. The proposed near eye display effectively reduces VAC for the eye-gazing area.

Paper Details

Date Published: 26 February 2020
PDF: 6 pages
Proc. SPIE 11304, Advances in Display Technologies X, 1130417 (26 February 2020); doi: 10.1117/12.2545737
Show Author Affiliations
Gyohyun Koo, Korea Advanced Institute of Science and Technology (Korea, Republic of)
Dooseub Shin, Korea Advanced Institute of Science and Technology (Korea, Republic of)
Jia Chee Leong, Korea Advanced Institute of Science and Technology (Korea, Republic of)
Yong Hyub Won, Korea Advanced Institute of Science and Technology (Korea, Republic of)

Published in SPIE Proceedings Vol. 11304:
Advances in Display Technologies X
Jiun-Haw Lee; Qiong-Hua Wang; Tae-Hoon Yoon, Editor(s)

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