Mukherjee, Joshua;
Shen, Zhouyang;
Christopoulos, Giorgos;
Subramanian, Sriram;
Hirayama, Ryuji;
(2025)
"To BEM or not to BEM?": Does Modelling Sound Scattering Improve Ultrasonic Mid-Air Haptics?
In:
Proceedings of the Extended Abstracts of the CHI Conference on Human Factors in Computing Systems.
(pp. pp. 1-7).
Association for Computing Machinery
Preview |
PDF
CHI25_BEM 4.pdf - Accepted Version Download (3MB) | Preview |
Abstract
Haptic interfaces have promised to bring touch feedback to computer interaction and control of ultrasound fields can facilitate non-contact haptic stimulus. To create these mid-air ultrasound sensations, it is essential to model acoustic transmission at the points of interest. However, current methods assume an empty working volume where ultrasound waves are propagated to the point of interest without obstructions, limiting accuracy in realistic scenarios. We show more intense stimuli are created by taking into account scattering with no reduction in user’s shape identification. Particularly significantly, this work is a case study highlighting the issues that arise when considering scattering effects for real time applications. The two most significant issues we identify are computation speeds when modelling scattering and the accuracy of real-world object-to-mesh construction. We urge that solving these two problems should be a major focus of future acoustic research, facilitating a new era of interactive devices and beyond.
Archive Staff Only
 |
View Item |
