Augmented reality controlled smart wheelchair using dynamic signifiers for affordance representation
File(s)
Accepted version
Author(s)
Chacon-Quesada, Rodrigo
Demiris, Yiannis
Type
Conference Paper
Abstract
The design of augmented reality interfaces for people with mobility impairments is a novel area with great potential, as well as multiple outstanding research challenges. In this paper we present an augmented reality user interface for controlling a smart wheelchair with a head-mounted display to provide assistance for mobility restricted people. Our motivation is to reduce the cognitive requirements needed to control a smart wheelchair. A key element of our platform is the ability to control the smart wheelchair using the concepts of affordances and signifiers. In addition to the technical details of our platform, we present a baseline study by evaluating our platform through user-trials of able-bodied individuals and two different affordances: 1) Door Go Through and 2) People Approach. To present these affordances to the user, we evaluated fixed symbol based signifiers versus our novel dynamic signifiers in terms of ease to understand the suggested actions and its relation with the objects. Our results show a clear preference for dynamic signifiers. In addition, we show that the task load reported by participants is lower when controlling the smart wheelchair with our augmented reality user interface compared to using the joystick, which is consistent with their qualitative answers.
Date Issued
2020-01-27
Date Acceptance
2019-11-01
Citation
2019 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2020
Publisher
IEEE
Journal / Book Title
2019 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)
Copyright Statement
© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Identifier
https://ieeexplore.ieee.org/document/8968290
Source
2019 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)
Publication Status
Published
Start Date
2019-11-03
Finish Date
2019-11-08
Coverage Spatial
Macau, China
Date Publish Online
2020-01-27