观看3D影像时的会聚角与脑电EEG重心频率的相关性研究  

The Correlation Analysis of Optical Angle of 3D Sight and Gravity Frequency in EEG

作　　者：刘保玉[1] 邢丽冬[1] 吴佳俐[1] 钱志余[1] 王笑[1] 金帅[1] 董猷琴 

机构地区：[1]南京航空航天大学生物医学工程系,南京210016

出　　处：《光电子技术》2014年第2期125-127,131,共4页Optoelectronic Technology

基　　金：国家自然科学基金(61171059);国家自然科学基金(61075107);南京航空航天大学研究生创新基地开放基金(kfjj20130212);中央高校基本科研业务费专项资金;科技部十二五国家科技支撑计划课题(2012BAI23B07)

摘　　要：在特定的实验条件下,利用脑电图仪采集10名志愿者观看4个3D影像的脑电信号,提取各时段的重心频率(Gravity Frequency,GF),对重心频率进行数据整合处理;测量志愿者观看3D片源各时段的视差,并转换为对应的会聚角(Optical Angle),重心频率与会聚角的值进行相关性分析和曲线拟合处理.结果显示:经过数据合并处理后,脑电EEG (electroencephalogram)重心频率与观看3D影像时的会聚角存在一定的线性关系,拟合优度最高的是三次曲线,观看3D影像时的会聚角在1.778°～3.254°时重心频率呈现下降趋势,这说明在此范围可能更容易使人感到不适.In particular experimental conditions,it is designed to collect the EEG of 10 volunteers watching four 3D images with an electroencephalograph,extract and integrate the Gravity Frequency(GF)and measure parallax of volunteers and convert the data to the corresponding Optical Angle.The correlation between Gravity Frequency and Optical Angle was then analyzed and the curve fitting was processed.It is shown that there is a certain linear relationship between the Optical Angle of 3D sight and the Gravity Frequency in EEG.The best fitting is observed in the cubic curve,with Gravity Frequency showing downward trend when Optical Angle of 3D sight ranging from 1.778° to 3.254°.It is shown that this range is much better to make people feel uncomfortable.

关 键 词：三维影像 脑电信号 重心频率 会聚角 

分 类 号：R318[医药卫生—生物医学工程]