A Retrospective on Ultrasound Mid-Air Haptics in HCI

2025-12-08

AI Summary

This paper addresses the limitation of conventional haptic feedback—its reliance on physical contact, which constrains immersion and accessibility in human–computer interaction (HCI). To overcome this, we present a systematic review of ultrasound-based airborne tactile (UAT) technology, synthesizing its technical foundations (e.g., phased ultrasonic arrays, airborne tactile rendering algorithms), perceptual principles (e.g., spatial resolution, intensity thresholds, temporal dynamics), and emerging interaction paradigms. Our analysis establishes UAT as a viable, fully non-contact haptic modality, enabling novel applications in virtual reality and accessible interfaces. Furthermore, we highlight the essential role of cross-disciplinary collaboration—spanning acoustics, neuroscience, HCI, and engineering—in advancing multimodal sensory interaction. The review provides both a theoretical framework and practical guidelines for future work in perceptual modeling, standardization, and inclusive design of airborne haptics.

Technology Category

• Humans and AI: Interaction Techniques and Devices
• Cognitive Modeling & Cognitive Systems: Affective Computing
• Intelligent Robots: Multimodal Perception & Sensor Fusion

Application Category

• User Modeling, Personalization and Recommendation: User modeling and simulation for interactive and conversational systems
• Responsible Web: Machine-in-the-loop, human agency and autonomy
• Economics, Online Markets and Human Computation: The sharing economy

Abstract

In 2013, the UltraHaptics system demonstrated that focused ultrasound could generate perceivable mid-air tactile sensations, building on earlier explorations of airborne ultrasound as a haptic medium. These contributions established ultrasound mid-air haptics (UMH) as a viable interaction modality and laid the technical and perceptual foundations for subsequent advances in Human-Computer Interaction (HCI). In this extended abstract, we revisit this formative work, trace the research and design trajectories it enabled, and reflect on how UMH has supported multisensory interaction, immersion, and inclusion. We also highlight how this line of research exemplifies the value of interdisciplinary collaboration to advance novel interactive technologies.

Problem

• Exploring ultrasound mid-air haptics for tactile interaction
• Establishing technical foundations for human-computer haptic interfaces
• Advancing multisensory interaction and inclusion through interdisciplinary research

Innovation

• Focused ultrasound generates mid-air tactile sensations
• Established ultrasound mid-air haptics as viable interaction modality
• Supports multisensory interaction, immersion, and inclusion