Subjective and objective evaluation of visual fatigue on viewing 3D display continuously

Danli Wang; Yaohua Xie; Xinpan Yang; Yang Lu; Anxiang Guo

doi:10.1117/12.2083119

30 March 2015 Subjective and objective evaluation of visual fatigue on viewing 3D display continuously

Danli Wang, Yaohua Xie, Xinpan Yang, Yang Lu, Anxiang Guo

Proceedings Volume 9391, Stereoscopic Displays and Applications XXVI; 93910U (2015) https://doi.org/10.1117/12.2083119
Event: SPIE/IS&T Electronic Imaging, 2015, San Francisco, California, United States

Abstract

In recent years, three-dimensional (3D) displays become more and more popular in many fields. Although they can provide better viewing experience, they cause extra problems, e.g., visual fatigue. Subjective or objective methods are usually used in discrete viewing processes to evaluate visual fatigue. However, little research combines subjective indicators and objective ones in an entirely continuous viewing process. In this paper, we propose a method to evaluate real-time visual fatigue both subjectively and objectively. Subjects watch stereo contents on a polarized 3D display continuously. Visual Reaction Time (VRT), Critical Flicker Frequency (CFF), Punctum Maximum Accommodation (PMA) and subjective scores of visual fatigue are collected before and after viewing. During the viewing process, the subjects rate the visual fatigue whenever it changes, without breaking the viewing process. At the same time, the blink frequency (BF) and percentage of eye closure (PERCLOS) of each subject is recorded for comparison to a previous research. The results show that the subjective visual fatigue and PERCLOS increase with time and they are greater in a continuous process than a discrete one. The BF increased with time during the continuous viewing process. Besides, the visual fatigue also induced significant changes of VRT, CFF and PMA.

Citation Download Citation

Danli Wang, Yaohua Xie, Xinpan Yang, Yang Lu, and Anxiang Guo "Subjective and objective evaluation of visual fatigue on viewing 3D display continuously", Proc. SPIE 9391, Stereoscopic Displays and Applications XXVI, 93910U (30 March 2015); https://doi.org/10.1117/12.2083119

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