Evaluating Subjective Impressions of Quality Controlled 3D Films on Large and Small Screens

Berry, Jonathan; Budgen, David; Holliman, Nicolas S.

doi:10.1109/jdt.2014.2384531

Cited by 2 publications

(2 citation statements)

References 21 publications

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“…The assessment method of visual fatigue is becoming a hot topic in the field of display quality evaluation [2], to solve such problems, it is necessary to find a suitable indicator for evaluating the effect of stereoscopic displays on human vision. 3D visual fatigue has already been studied using questionnaires, CFF and ACC in [3][4][5][6]. However, subjective measurement may be biased by viewers' past experience and current state of mind, visual function-based measurement requires large devices and optometric measurements cannot be recorded in real time.…”

Section: Introductionmentioning

confidence: 99%

EEG-Based Assessment of Stereoscopic 3D Visual Fatigue Caused by Vergence-Accommodation Conflict

Zou

Liu

Guo

et al. 2015

J. Display Technol.

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Recent advances in 3D displays have contributed to the pressing need of new measurement methods for display comfort. Developing a valid measurement of visual fatigue caused by 3D display remains a big challenge and is beneficial for optimizing the system design. This paper assessed three electroencephalography (EEG) activities, θ, α and β, during a monotonous and repetitive random dot stereogram (RDS) based task in a conventional stereoscopic 3D display. Six types of ratio indices were computed based on EEG data and assessed as possible indicators for stereoscopic visual fatigue detection. The results of critical flicker frequency (CFF) and accommodative amplitude (ACC) showed that the proposed experiment setup can induce visual fatigue. According to the subjective ratings, the visual fatigue accumulated in this task was mostly related to the binocular vision stress of 3D display. Results of EEG data showed stable θ activity, a significant increase of α activity, and a significant decrease of β activity over time (p<0.05). In addition, the effectiveness of EEG indices was evaluated to measure stereoscopic visual fatigue by using grey relation analysis (GRA) and verified by correlating with CFF. The results of analysis suggest that among all nine types of EEG indices (θ, α, β, θ/β, α/β, α/θ, θ/(α+β), (α+θ)/β, (α+θ)/(α+β)), α is the most promising indicator for detecting stereoscopic visual fatigue.Index Terms-3D display, visual fatigue, EEG, objective measurement, grey relation analysis. 1551-319X (c)

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Section: Introductionmentioning

confidence: 99%

EEG-Based Assessment of Stereoscopic 3D Visual Fatigue Caused by Vergence-Accommodation Conflict

Zou

Liu

Guo

et al. 2015

J. Display Technol.

View full text Add to dashboard Cite

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“…Visual fatigue is usually assessed by exploiting questionnaires gathering users' evaluations before and after the experiment [10], [11]. Nevertheless, questionnaires are naturally biased by inter-subject variability in the answers, due to the subject's mood at the time of the experiment as well as to their past experience or to their level of understanding of the questions [12].…”

Section: Introductionmentioning

confidence: 99%

A preliminary quantitative EEG study on Augmented Reality Guidance of Manual Tasks

Rho

Callara

Condino

et al. 2020

2020 IEEE International Symposium on Medical Measurements and Applications (MeMeA)

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Augmented reality head mounted display devices (HMDs) provide user's natural view of the real world with enhanced experience through optical superposition of virtual data. Manual-task guidance applications exploiting these systems are particularly suited in computer-aided-surgery. However, the typical working distance of commercial devices is higher than user reachable space, limiting the purpose of manualtask guidance. Specifically, known issues such as the "vergenceaccomodation-conflict" and the "focus-rivalry" may lead to visual fatigue and mental workload worsening task performance. Here, we exploit EEG recordings during a "connecting-the-dots" task performed with and without AR to evaluate the mental workload associated with AR-related visual fatigue. First, we quantify the reduction of users' performance based on starting and end points gap errors. Then, we investigate the effects on AR usage on cortical activity through the analysis of EEG power and Frontal Alpha Asymmetry (FAA) index. Although preliminary, our results suggest that mental workload associated with AR usage may derive from enhanced difficulty associated with the task. Furthermore, a shift in FAA from controlateral to ipsilateral regions seems to confirm this hypothesis.

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Evaluating Subjective Impressions of Quality Controlled 3D Films on Large and Small Screens

Abstract: Evaluating subjective impressions of quality controlled 3D films on large and small screens.

Cited by 2 publications

References 21 publications

EEG-Based Assessment of Stereoscopic 3D Visual Fatigue Caused by Vergence-Accommodation Conflict

EEG-Based Assessment of Stereoscopic 3D Visual Fatigue Caused by Vergence-Accommodation Conflict

A preliminary quantitative EEG study on Augmented Reality Guidance of Manual Tasks

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