Hiroki Watanabe

schoolHokkaido Universitybar_chart#2682 Global Rank

Total Papers

HCI Rank

#2682

Research Areas

Years Active

Recent Publications

EarHover: Mid-Air Gesture Recognition for Hearables Using Sound Leakage Signals

We introduce EarHover, an innovative system that enables mid-air gesture input for hearables. Mid-air gesture input, which eliminates the need to touch the device and thus helps to keep hands and the device clean, has been known to have high demand based on previous surveys. However, existing mid-air gesture input met…

MOBILEHCI '244th AuthorVibrotactile Feedback & Skin Stimulation +1

Exploring User-Defined Gestures as Input for Hearables and Recognizing of Ear-Touch Gestures by IMUs

Hearables are highly functional earphone-type wearables; however, existing input methods using stand-alone hearables are limited in the number of commands, and there is a need to extend device operation through hand gestures. In previous research on hearables for hand input, user understanding and gesture recognition…

UBICOMP '232nd AuthorPasswords & Authentication

User Authentication Method for Hearables Using Sound Leakage Signals

We propose a novel biometric authentication method that leverages sound leakage signals from hearables that are captured by an external microphone. A sweep signal is played from hearables, and sound leakage is recorded using an external microphone. This sound leakage signal represents the acoustic characteristics of t…

UBICOMP '231st AuthorMid-Air Haptics (Ultrasonic) +1

UltrasonicWhisper: Ultrasound Can Generate Audible Sound in Your Hearable

Recent studies have shown that ultrasound can be used for voice input to microphones such as smart speakers by taking advantage of the nonlinearity of the microphones. A similar attack on the hearing of a user wearing a hearable with an outside microphone is also possible. Specifically, information modulated by ultr…

UBICOMP '23CorrespondingHaptic Wearables +1

Input Interface with Touch and Non-touch Interactions using Atmospheric Pressure for Hearable Devices

A hearable device is a wearable computer that is worn on the ear. In addition to offering conventional music listening functions when utilized as earphones, a hearable device can be linked to smartphones and various onboard sensors to recognize user actions and voice assistants. Although some devices recognize command…

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