Exploratory Analysis of Nose-gesture for Smartphone Aided Typing for Users with Clinical Conditions

Clinical disabilities might cause difficulty in typing using the traditional text entry systems that involve steady and precise finger movement within a restricted keyboard area in smartphones. Alternative approaches like voice-typing do not work well in a noisy environment, while gaze-typing needs large displays. In this paper, we develop an innovative approach called Nosype for hands-free typing over smartphones by utilizing nose gestures. With 10 users in a lab-scale, we observe that Nosype can help in hands-free typing at a typing-speed of 6.5 words/minute. Additionally, a usability study with 60 participants, including 10 participants having clinical disabilities, indicates an average usability score of 77.708.