Facial Temperature Markers for Mental Stress Assessment in Human-Machine Interface (HMI) Control System
Facial Temperature Markers for Mental Stress Assessment in Human-Machine Interface (HMI) Control System
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DOI：
10.5220/0006820700310038
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
C. He;M. Mahfouf;L. A. Torres-Salomao
中科院分区：
文献类型：
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作者：
C. He;M. Mahfouf;L. A. Torres-Salomao
心理状态预测对人机界面的安全性和可靠性具有重要意义。在本文中，使用面部温度的变化来预测心理压力进行了研究。对7名健康受试者进行了精心设计的HMI实验，并对结果进行了统计分析，建立了使用面部温度与热成像仪来估计人类精神压力的有效性。从面部温度数据开发的生物标志物与传统的生物标志物（例如心率变异性（HRV）、任务负荷指数（TLI）和瞳孔大小）相比，表现出类似或甚至更好的区分精神压力水平的能力。平均鼻温对心理状态的变化很敏感，最高面部温度和平均前额温度也与心理压力和任务表现有明显的相关性。
Mental state prediction is of great importance to human-machine interface (HMI) as far as both safety and reliability are concerned. In this paper, the use of facial temperature changes for predicting mental stress has been investigated. A carefully designed experiment of HMI has been performed on seven (7) healthy subjects, and the statistical analysis of the results has been provided, and the effectiveness of using facial temperature with the thermal camera to estimate the human mental stress has been established. The biomarkers developed from the data of facial temperature have exhibited a similar or even better ability to differentiate between the mental stress levels in comparison with the traditional biomarkers (e.g. heart rate variability (HRV), task load index (TLI) and pupil size). The mean nasal temperature has been shown to be sensitive to changes in the mental state, and the maximum facial temperature and the mean forehead temperature have also shown clear correlations with mental stress and task performance.