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PneuFetch: Supporting Blind and Visually Impaired People to Fetch Nearby Objects via Light Haptic Cues

Conference Poster
Liang He, Ruolin Wang, Xuhai Xu
Extended Abstracts of the 2020 CHI Conference on Human Factors in Computing Systems (CHI EA’20)
Publication year: 2020


We present PneuFetch, a light haptic cue based wearable device that supports blind and visually impaired (BVI) people to fetch nearby objects in an unfamiliar environment. In our design, we generate friendly, non-intrusive, and gentle presses and drags to deliver direction and distance cues on BVI user’s wrist and forearm. As a concept of proof, we discuss our PneuFetch wearable prototype, contrast it with past work, and describe a preliminary user study.  [Click for More Details] 

GalVR: A Novel Collaboration Interface using GVS

Conference Poster
Misha Sra, Xuhai Xu, Pattie Maes
In Proceedings of the 23rd ACM Symposium on Virtual Reality Software and Technology (VRST ’17)
Publication year: 2017


GalVR is a navigation interface that uses galvanic vestibular stimulation (GVS) during walking to cause users to turn from their planned trajectory. We explore GalVR for collaborative navigation in a two-player virtual reality (VR) game. The interface affords a novel game design that exploits the differences in first and third person perspectives, allowing VR and non-VR users to share a play experience. By introducing interdependence arising from dissimilar points of view, players can uniquely contribute to the shared experience based on their roles. We detail the design of our asymmetrical game, Dark Room and present some insights from a pilot study. Trust emerged as the defining factor for successful play.  [Click for More Details]