Jinsung Yoon

AcouLetter: Enabling Fine-Grained Mid-Air Alphabetic Thumb Gesture Recognition on Smartphones with Acoustic and Inertial Sensing

Mobile interaction is fundamentally tied to the screen, requiring users to look at and physically touch their devices by tapping on-screen controls. We introduce AcouLetter, a system for recognizing fine-grained, mid-air alphabetic thumb gestures above the screen that enables one-handed and non-contact input. Our meth…