MotionRing: Creating Illusory Tactile Motion around the Head using 360° Vibrotactile Headbands
Journal
UIST 2021 - Proceedings of the 34th Annual ACM Symposium on User Interface Software and Technology
Pages
724-731
Date Issued
2021
Author(s)
Abstract
We present MotionRing, a vibrotactile headband that creates illusory tactile motion around the head by controlling the timing of a 1-D, 360° sparse array of vibration motors. Its unique ring shape enables symmetric and asymmetric haptic motion experiences, such as when users pass through a medium and when an object passes nearby in any direction. We first conducted a perception study to understand how factors such as vibration motor timing, spacing, duration, intensity, and head region affect the perception of apparent tactile motion. Results showed that illusory tactile motion around the head can be achieved with 12 and 16 vibration motors with angular speed between 0.5-4.9 revolutions per second. We developed a symmetric and an asymmetric tactile motion pattern to enhance the experience of teleportation in VR and dodging footballs, respectively. We conducted a user study to compare the experience of MotionRing vs. static vibration patterns and visual-only feedback. Results showed that illusory tactile motion significantly improved users' perception of directionality and enjoyment of motion events, and was most preferred by users. ? 2021 ACM.
Subjects
apparent tactile motion
haptic feedback
vibrotactile
User interfaces
Angular speed
Apparent tactile motion
Haptic feedbacks
Haptics
Motion pattern
Sparse arrays
Symmetrics
User study
Vibration motor
Vibrotactile
Feedback
Type
conference paper