Abstract
This paper presents EdgeVib, a system of spatiotemporal vibration patterns for delivering alphanumeric characters on wrist-worn vibrotactile displays. We first investigated spatiotemporal pattern delivery through a watch-back tactile display by performing a series of user studies. The results reveal that employing a 2×2 vibrotactile array is more effective than employing a 3×3 one, because the lower-resolution array creates clearer tactile sensations in less time consumption. We then deployed EdgeWrite patterns on a 2×2 vibrotactile array to determine any difficulties of delivering alphanumerical characters, and then modified the unistroke patterns into multistroke EdgeVib ones on the basis of the findings. The results of a 24-participant user study reveal that the recognition rates of the modified multistroke patterns were significantly higher than the original unistroke ones in both alphabet (85.9% vs. 70.7%) and digits (88.6% vs. 78.5%) delivery, and a further study indicated that the techniques can be generalized to deliver two-character compound messages with recognition rates higher than 83.3%. The guidelines derived from our study can be used for designing watch-back tactile displays for alphanumeric character output.
Original language | English |
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Title of host publication | UIST '16: Proceedings of the 29th Annual Symposium on User Interface Software and Technology, 16-19 October 2016, Tokyo, Japan |
Place of Publication | New York |
Publisher | Association for Computing Machinery, Inc |
Pages | 595-601 |
Number of pages | 7 |
ISBN (Print) | 978-1-4503-4189-9 |
DOIs | |
Publication status | Published - 16 Oct 2016 |
Externally published | Yes |
Event | 29th Annual ACM Symposium on User Interface Software and Technology (UIST 2016) - Tokyo, Japan Duration: 16 Oct 2016 → 19 Oct 2016 Conference number: 29 https://uist.acm.org/uist2016 |
Conference
Conference | 29th Annual ACM Symposium on User Interface Software and Technology (UIST 2016) |
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Abbreviated title | UIST 2016 |
Country/Territory | Japan |
City | Tokyo |
Period | 16/10/16 → 19/10/16 |
Internet address |
Keywords
- alphanumerical character output, spatiotemporal vibrotactile pattern, wrist-worn tactile display