Estimating visual comfort in stereoscopic displays using electroencephalography: A proof-of-concept

Abstract

With stereoscopic displays, a too strong depth sensation could impede visual comfort and result in fatigue or pain. We used Electroencephalography (EEG), which records brain activity, 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 1 s 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.