Lei Gao

schoolUniversity College Londonbar_chart#2268 Global Rank

Total Papers

HCI Rank

#2268

Research Areas

Years Active

Recent Publications

AAC: An Acoustic Actor-Critic Trajectory Planning and Correction System for Stable Multi-Particle Levitation Displays

Acoustic levitation enables mid-air displays using physical particles to create 3D visuals, but stability limits the achievable animation complexity. Stability depends on factors including the acoustic solver, particle count, motion speed, and path geometry. This paper analyzes these factors, characterizing their effe…

DIS '252nd AuthorBest PaperIn-Vehicle Haptic, Audio & Multimodal Feedback +2

SONARIOS: A Design Futuring-Driven Exploration of Acoustophoresis

Sound waves shape not only our ability to hear but also offer new ways to interact with and experience our environment. Acoustophoresis, a method of manipulating objects using the mechanical energy of sound, enables multimodal displays incorporating touch, taste, vision, and more. While current research has focused on…

CHI '252nd AuthorForce Feedback & Pseudo-Haptic Weight +1

Slip-Grip: An Electrotactile Method to Simulate Weight

Weight perception is crucial for immersive virtual reality (VR) interactions, yet providing weight feedback remains a significant research challenge. We introduce a novel weight simulation technique that leverages electrotactile stimulation to induce slip illusions. These slip illusions occur when users grip an object…

CHI '241st AuthorMid-Air Haptics (Ultrasonic) +1

StableLev: Data-Driven Stability Enhancement for Multi-Particle Acoustic Levitation

Acoustic levitation is an emerging technique that has found application in contactless assembly and dynamic displays. It uses precise phase control in an ultrasound transducer array to manage the positions and movements of multiple particles. Yet, maintaining stable mid-air particles is challenging, with unexpected dr…

CHI '231st AuthorMid-Air Haptics (Ultrasonic) +1

DataLev: Mid-air Data Physicalisation Using Acoustic Levitation

Data physicalisation is a technique that encodes data through the geometric and material properties of an artefact, allowing users to engage with data in a more immersive and multi-sensory way. However, current methods of data physicalisation are limited in terms of their reconfigurability and the types of materials t…

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