Eccentricity Effects on Blur and Depth Perception

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Abstract

Foveation and (de)focus are two important visual factors in designing near eye displays. Foveation can reduce computational load by lowering display details towards the visual periphery, while focal cues can reduce vergence-accommodation conflict thereby lessening visual discomfort in using near eye displays. We performed two psychophysical experiments to investigate the relationship between foveation and focus cues. The first study measured blur discrimination sensitivity as a function of visual eccentricity, where we found discrimination thresholds significantly lower than previously reported. The second study measured depth discrimination threshold where we found a clear dependency on visual eccentricity. We discuss the study results and suggest further investigation.

Bibtex

@article{Sun:2020,
author = {Qi Sun and Fu-Chung Huang and Li-Yi Wei and David Luebke and Arie Kaufman and Joohwan Kim},
journal = {Opt. Express},
keywords = {Binocular vision; Head mounted displays; Light fields; Optical components; Retinal ganglion cells; Visual system},
number = {5},
pages = {6734–6739},
publisher = {OSA},
title = {Eccentricity effects on blur and depth perception},
volume = {28},
month = {Mar},
year = {2020},
url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-28-5-6734},
doi = {10.1364/OE.28.006734},
}