A wireless EOG-based Human Computer Interface

Human Computer Interface (HCI) is becoming a hot area of research. It can be developed for the disabled and many other application fields. Biopentials existed in human body, such as Electroencephalogram (EEG), Electromyogram (EMG), Electrooculogram (EOG) are used to be inputs of the HCI system. In this paper, the design scheme of a wireless EOG-based Human Computer Interfaces is presented. The detailed system diagram is shown in the paper. It consists of EOG signal acquisition, EOG filter and amplifier, ARM microcontroller and Zigbee wireless module. Also, the methods of eye gestures recognition are discussed.