Testing inertial sensor performance as hands-free human-computer interface
Josip Musić, Mojmil Cecić, Mirjana Bonković · 2009
Abstract:- The paper introduces hands-free human-computer interface designed around commercially available inertial sensor pack. It is primarily intended to provide computer access for people with little or no upper-limb functionality, but can be used by able bodied subject in certain application scenarios. The performance of the proposed device was evaluated on twelve healthy subjects performing multi-directional point-and-select task with throughput as the main performance parameter. The system was tested using two different pointer control schemes, as well as three selection techniques. Test subjects were given two questionnaires (one per control scheme) in order to provide comfort assessment of the device and short post-measurement interviews with test subjects provided user feedback. Obtained performance and comfort assessment results are presented and discussed.