Estimating Visual Comfort in Stereoscopic Displays Using Electroencephalography: A Proof-of-Concept

TL;DR

This paper presents a proof-of-concept EEG-based system that detects visual comfort levels in stereoscopic displays within one second, aiming to develop adaptive displays that enhance user comfort and reduce fatigue.

Contribution

It introduces the first EEG-based brain-computer interface capable of distinguishing comfortable from uncomfortable stereoscopic viewing conditions in real-time.

Findings

Achieves 63% accuracy in discriminating comfort levels

Reaches 74% accuracy when analyzing 7 consecutive depth variations

Responds within 1 second to changes in stereoscopic depth

Abstract

With stereoscopic displays, a depth sensation that is too strong could impede visual comfort and result in fatigue or pain. Electroencephalography (EEG) is a technology which records brain activity. We used it to develop a novel brain-computer interface that monitors users' states in order to reduce visual strain. We present the first proof-of-concept system that discriminates comfortable conditions from uncomfortable ones during stereoscopic vision using EEG. It reacts within 1s to depth variations, achieving 63% accuracy on average and 74% when 7 consecutive variations are measured. This study could lead to adaptive systems that automatically suit stereoscopic displays to users and viewing conditions.