立体深度运动引发的立体视觉疲劳的脑电评估

发布时间：2018-04-26 23:02

本文选题：视觉疲劳 + 脑电　；参考：《工程科学学报》2017年09期

【摘要】：3D技术的发展受到其引发的不舒适感的限制,长时间观看立体显示影像将会引起立体视觉疲劳,一种客观评价立体视觉疲劳的有效指标亟待提出.本文利用EEG(electroencephalography)三个频带θ(4~8 Hz)、α(8~13 Hz)、β(13~22Hz)的相对能量及其能量比值E_((α+θ)/β)、E_(α/β)、E_((α+θ)/(α+β))在八个不同脑区及整个脑区的54个指标作为备选,借助配对t检验、灰色关联度分析(GRA)、支持向量机(SVM),最后得出指示由立体深度运动引发的视觉疲劳的最佳脑电指标为:顶区E_(α/β).并比较了三个频带相对能量在不同疲劳状态的变化:疲劳状态下,α频带明显上升(p0.01),β频带明显下降(p0.01),θ频带保持稳定.
[Abstract]:The development of 3D technology is limited by the uncomfortableness caused by 3D technology. Viewing stereoscopic images for a long time will cause stereo vision fatigue. An effective index to evaluate stereoscopic visual fatigue needs to be put forward. In this paper, the relative energy and energy ratio of three frequency bands 胃 ~ (4) ~ (8) ~ (8) H ~ (z), 伪 ~ (8) ~ (13) H ~ (2 +), 尾 ~ (13) ~ (13) ~ (22) H ~ (2) of EEGG electroencephalography (EEGG) are used as the relative energy and the energy ratio of E (伪胃 / 尾) in eight different brain regions and the whole brain region as an alternative. Grey correlation degree analysis (GRA), support vector machine (SVM), and SVM.Finally, the best EEG index to indicate visual fatigue caused by stereoscopic depth motion is as follows: top region E (伪 / 尾). The changes of relative energy of three bands in different fatigue states are compared. Under fatigue condition, the 伪 band increases obviously, the 尾 band decreases obviously, and the 胃 band remains stable.
【作者单位】：天津大学电气自动化与信息工程学院;
【基金】：国家自然科学基金资助项目(61302123,61520106002,61471262)
【分类号】：R318;TN911.6

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