Heterogeneous Stroke: Using Unique Vibration Cues to Improve the Wrist-Worn Spatiotemporal Tactile Display

要旨

Beyond a simple notification of incoming calls or messages, more complex information such as alphabets and digits can be delivered through spatiotemporal tactile patterns (STPs) on a wrist-worn tactile display (WTD) with multiple tactors. However, owing to the limited skin area and spatial acuity of the wrist, frequent confusions occur between closely located tactors, resulting in a low recognition accuracy. Furthermore, the accuracies reported in previous studies have mostly been measured for a specific posture and could further decrease with free arm postures in real life. Herein, we present Heterogeneous Stroke, a design concept for improving the recognition accuracy of STPs on a WTD. By assigning unique vibrotactile stimuli to each tactor, the confusion between tactors can be reduced. Through our implementation of Heterogeneous Stroke, the alphanumeric characters could be delivered with high accuracy (93.8% for 26 alphabets and 92.4% for 10 digits) across different arm postures.

著者
Taejun Kim
School of Computing, KAIST, Daejeon, Korea, Republic of
Youngbo Aram. Shim
KAIST, Daejeon, Korea, Republic of
Geehyuk Lee
School of Computing, KAIST, Daejeon, Korea, Republic of
DOI

10.1145/3411764.3445448

論文URL

https://doi.org/10.1145/3411764.3445448

動画

会議: CHI 2021

The ACM CHI Conference on Human Factors in Computing Systems (https://chi2021.acm.org/)

セッション: Haptics

[A] Paper Room 09, 2021-05-10 17:00:00~2021-05-10 19:00:00 / [B] Paper Room 09, 2021-05-11 01:00:00~2021-05-11 03:00:00 / [C] Paper Room 09, 2021-05-11 09:00:00~2021-05-11 11:00:00
Paper Room 09
10 件の発表
2021-05-10 17:00:00
2021-05-10 19:00:00
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