OpenViBE2Unity: Open Source API for Brain-Computer Interface and Unity3D Application

Sooyong Kim, Seongjoon Jeong, Eunmin Lee, Sunghan Lee, Sung Chan Jun, Minkyu Ahn

http://doi.org/10.5626/JOK.2019.46.11.1157

Brain-computer interface, which can quantify a person’s intention, cognition, and feelings, is an active research field. However, building a system that performs well is not a simple task, as it requires data acquisition, real-time processing, and multimodal feedback, and often necessitates considerable cost in time and effort, particularly for untrained users and researchers. Thus, it is important to have an interface that is designed well and works with open platforms, such as Unity3D and OpenViBE that are used widely in BCI development and application. With this goal, we developed OpenViBE2Unity (O2U), an Application Programming Interface that can be used easily for the development of BCI applications. This open API (available through Github) provides special functions that facilitate communication between two popular platforms, OpenViBE and Unity3D. In this paper, we introduce O2U’s architecture and a step-by-step procedure for its application. Finally, we demonstrate one exemplary application developed under O2U.