A Brain-computer Interface Research Based On Intelligent Glasses

Brain-Computer-Interface(BCI) is a human machine interface that can realize thecommunication and control between brain and other equipment only through EEG,without the help of normal pass way by nerves and muscles. Intelligent glasses canprovide a three-dimensional movie by two vision screens showing different images.BCI associated with Intelligent glasses may be a possible alternative to standard invivo exposure， that has become the hot spot of BCI.Aiming at the hands movement usually effect the analysis of lower limbs motorimagery. an experiment collect the EEG (Electroencephalogram) dates has beendesigned, Firstly, time-frequency spectrum and brain topographic map were used toanalyze the time-frequency, energy feature and region distribution of event relateddesynchronization (ERD). Two kinds of algorithm including common spatial patternCSP and Wavelet Packet Transform were used for feature extraction. After theoptimize of the data processing method, The classification results showed that CSPpreforms better than the other approach, the average accuracy of binaryclassification could reach91.5%.And then, in this article, we built an on-line BCIcontrol platform by Virtual reality technology based on intelligent glasses. Design anexperimental on-line control experiment by play football task during Virtual reality. Itwas obviously seen from results that5users can successfully and steadily finish aseries of operations. It proved that this system is feasible and mistake can beeliminated. In this experiment participants were invited to complete a subjective scale.Result shows that on-line control platform in this article show out an Obviouslyimprove to the immersion characteristic of each subject.