Hands-Free Input Interface for Wearable Computing

Abstract

This paper describes the development of hands-free input interface for wearable computing. The device is designed to operate the computer by facial actions, which are detected by the piezo films attacted to the surface of the skin. In order to evaluate the input interface using facial actions, we measured user's behavior and mental state by wearable measuring device. The user's behavior is observed by the CCD camera and pedometer, and user's mental state is measured by the RRV (Variance of R-R intervals of EGC). We evaluated the efficiency of the developed interface by comparing with cellular phone, which can connect to the intermet. We proved that the input interface using facial actions can combine computer activity and daily activities.