TY - JOUR
T1 - An objective description method of visual comfort for VDT display interface
AU - Jiang, Ying
AU - Hong, Jun
AU - Wang, Wei
AU - Qu, Jue
N1 - Publisher Copyright:
© 2017, Central South University Press. All right reserved.
PY - 2017/1/26
Y1 - 2017/1/26
N2 - 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.
AB - 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.
KW - Display interface
KW - EEG signal
KW - Model
KW - Objective description
KW - Visual comfort
KW - Visual display terminals (VDT)
UR - https://www.scopus.com/pages/publications/85018413908
U2 - 10.11817/j.issn.1672-7207.2017.01.011
DO - 10.11817/j.issn.1672-7207.2017.01.011
M3 - 文章
AN - SCOPUS:85018413908
SN - 1672-7207
VL - 48
SP - 77
EP - 83
JO - Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology)
JF - Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology)
IS - 1
ER -