A Pilot Study on Virtual Camera Control via Steady-State VEP in Immersing Virtual Environments

H. Touyama, M. Aotsuka, and M. Hirose (Japan)

Keywords

Braincomputer interface (BCI), Steadystate visual evoked potential (SSVEP), Virtual reality, Immersing virtual environment

Abstract

This paper presents a pilot study on virtual camera control via Steady State Visual Evoked Potentials (SSVEP) in immersing virtual environments. The electroencephalographic (EEG) oscillations, induced by two flickering virtual buttons projected on the computer generated panorama, were recorded. The flickering frequencies were selected between 4 and 8 Hz. Applying Support Vector Machines (SVMs), for three subjects, the single trial EEG data with 2 seconds of analyzing time yielded 79.9 % of average classification performance (range 71.4 to 86.6 %) in inferring the gaze directions. The online studies showed a feasibility of performing virtual camera control in immersing virtual environments only by the EEG oscillations without subject training.

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