Virtual Reality Without Vision: A Haptic and Auditory White Cane to Navigate Complex Virtual Worlds
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Author / Producer
Date
2020-04
Publication Type
Conference Paper
ETH Bibliography
yes
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Abstract
Current Virtual Reality (VR) technologies focus on rendering visuospatial effects, and thus are inaccessible for blind or low vision users. We examine the use of a novel white cane controller that enables navigation without vision of large virtual environments with complex architecture, such as winding paths and occluding walls and doors. The cane controller employs a lightweight three-axis brake mechanism to provide large-scale shape of virtual objects. The multiple degrees-of-freedom enables users to adapt the controller to their preferred techniques and grip. In addition, surface textures are rendered with a voice coil actuator based on contact vibrations; and spatialized audio is determined based on the progression of sound through the geometry around the user. We design a scavenger hunt game that demonstrates how our device enables blind users to navigate a complex virtual environment. Seven out of eight users were able to successfully navigate the virtual room (6x6m) to locate targets while avoiding collisions. We conclude with design consideration on creating immersive non-visual VR experiences based on user preferences for cane techniques, and cane material properties.
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Publication status
published
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Editor
Book title
CHI '20: Proceedings of the 2020 CHI Conference on Human Factors in Computing Systems
Journal / series
Volume
Pages / Article No.
226
Publisher
Association for Computing Machinery
Event
CHI Conference on Human Factors in Computing Systems (CHI 2020) (cancelled)
Edition / version
Methods
Software
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Date collected
Date created
Subject
Virtual reality; White cane; Blindness; Visual impairments; Haptic feedback; Auditory feedback; Mobility; 3D audio
Organisational unit
09649 - Holz, Christian / Holz, Christian