HeadText: Exploring Hands-free Text Entry using Head Gestures by Motion Sensing on a Smart Earpiece. (arXiv:2205.09978v1 [cs.HC])

We present HeadText, a hands-free technique on a smart earpiece for text
entry by motion sensing. Users input text utilizing only 7 head gestures for
key selection, word selection, word commitment and word cancelling tasks. Head
gesture recognition is supported by motion sensing on a smart earpiece to
capture head moving signals and machine learning algorithms (K-Nearest-Neighbor
(KNN) with a Dynamic Time Warping (DTW) distance measurement). A 10-participant
user study proved that HeadText could recognize 7 head gestures at an …

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