Abstract
Virtual Reality allows users to embody avatars that do not match their real bodies. Earlier work has selected changes to the avatar arbitrarily and it therefore remains unclear how to change avatars to improve users' performance. We propose a systematic approach for iteratively adapting the avatar to perform better for a given task based on users' performance. The approach is evaluated in a target selection task, where the forearms of the avatar are scaled to improve performance. A comparison between the optimised and real arm lengths shows a significant reduction in average tapping time by 18.7%, for forearms multiplied in length by 5.6. Additionally, with the adapted avatar, participants moved their real body and arms significantly less, and subjective measures show reduced physical demand and frustration. In a second study, we modify finger lengths for a linear tapping task to achieve a better performing avatar, which demonstrates the generalisability of the approach.
Original language | English |
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Title of host publication | Proceedings of the 33rd Annual ACM Symposium on User Interface Software and Technology |
Place of Publication | https://dl.acm.org/doi/abs/10.1145/3379337.3415832 |
Publisher | Association for Computing Machinery |
Publication date | 1 Oct 2020 |
Edition | 1 |
Pages | 709–721 |
ISBN (Print) | 978-1-4503-7514-6 |
DOIs | |
Publication status | Published - 1 Oct 2020 |
Event | 3rd Annual ACM Symposium on User Interface Software and Technology - UIST' 20 - Virtuel Event, United States Duration: 20 Oct 2020 → 23 Oct 2020 |
Conference
Conference | 3rd Annual ACM Symposium on User Interface Software and Technology - UIST' 20 |
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Country/Territory | United States |
City | Virtuel Event |
Period | 20/10/2020 → 23/10/2020 |