Virtual reality game interaction method and system based on brain-computer interface

Abstract

The embodiment of the invention provides a virtual reality game interaction method and system based on a brain-computer interface, and the method comprises the steps: obtaining an electroencephalogramsignal of an operator, and the electroencephalogram signal comprising a steady-state visual evoked potential signal and a motor imagery electroencephalogram signal; performing feature extraction processing on the steady-state visual evoked potential signal to obtain steady-state visual evoked potential features; performing feature extraction processing on the motor imagery electroencephalogram signal to obtain motor imagery features; classifying and identifying the steady-state visual evoked potential features to obtain steady-state visual evoked potential categories; carrying out classification and identification on the motor imagery features to obtain motor imagery categories; and according to the steady-state visual evoked potential category and the motor imagery category, obtaining acorresponding control instruction for performing interactive control on the virtual reality game. According to the embodiment of the invention, the operability of the virtual reality game is improved,and meanwhile, the application range of the brain-computer interface is expanded.

Description

technical field [0001] The invention relates to the technical field of EEG signal collection and analysis, in particular to a method and system for interacting with virtual reality games based on a brain-computer interface. Background technique [0002] Virtual reality technology (Virtual Reality, referred to as VR) is a computer simulation system that can create and experience a virtual world. It uses a computer to generate a simulated environment and immerses users in the virtual environment. Virtual reality technology is to use the data in real life, through the electronic signal generated by computer technology, combine it with various output devices to transform it into a phenomenon that people can feel. These phenomena can be real objects in reality. , it can also be a substance invisible to our naked eyes, which is represented by a three-dimensional model. Because these phenomena are not what we can see directly, but the real world simulated by computer technology, i...

AI Technical Summary

Problems solved by technology

[0004] However, most of the existing VR games use VR helmets for positioning and operating handles for interactive control, resulting in relatively large operating limitations and poor user experience.

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