An objective description method of visual comfort for VDT display interface

被引：0
|
作者：
Jiang Y. [1 ]
Hong J. [1 ]
Wang W. [2 ]
Qu J. [2 ]
机构：
[1] State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an
[2] College of Air and Missile Defense, Air Force Engineering University, Xi'an
来源：
Hong, Jun (jhong@mail.xjtu.edu.cn) | 1600年 / Central South University of Technology卷 / 48期
关键词：
Display interface; EEG signal; Model; Objective description; Visual comfort; Visual display terminals (VDT);
D O I：
10.11817/j.issn.1672-7207.2017.01.011
中图分类号：
学科分类号：
摘要：
An objective description model was established by a combination of subjective and objective approaches. The test objects were the instrument interfaces with different color combinations. Through collecting electroencephalogram EEG signals of subjects, the amplitude and latency of P100 and P300 induced by different combinations were obtained, as well as EEG power under different bands. A subjective evaluation was carried out after the objective tests. Through the polynomial regression fitting, a mathematical model of visual comfort (VC) was established with FP4 and Pβ as independent variables. The results show that through correlation analysis, the highly relevant relationships are found among the visual comfort and P300 amplitude at the parietal lobe (P4) FP4 (correlation coefficient of 0.644, significance ρ<0.05), β band power Pβ (correlation coefficient of 0.850, ρ<0.005) and the rate of β/(α+θ) P(α+θ)/β (correlation coefficient of -0.872, ρ<0.005). The relationship between VC and FP4 is positive linear and the relationship between VC and Pβ is quadratic parabola, and a negative relation is found between VC and the interaction of FP4 and Pβ. It is feasible to use this model for the objective evaluation of visual comfort. Meanwhile, this model can be used to evaluate the visual comfort of VDT display interface. © 2017, Central South University Press. All right reserved.
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页码：77 / 83
页数：6
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