The what, who, where, when, why and how of context-awareness
CHI '00 Extended Abstracts on Human Factors in Computing Systems
An Experimental Investigation into Wayfinding Directions for Visually Impaired People
Personal and Ubiquitous Computing
Ergonomics-for-one in a robotic shopping cart for the blind
Proceedings of the 1st ACM SIGCHI/SIGART conference on Human-robot interaction
Encouraging physical therapy compliance with a hands-Off mobile robot
Proceedings of the 1st ACM SIGCHI/SIGART conference on Human-robot interaction
Passive radio frequency exteroception in robot assisted shopping for the blind
UIC'06 Proceedings of the Third international conference on Ubiquitous Intelligence and Computing
The GuideCane-applying mobile robot technologies to assist thevisually impaired
IEEE Transactions on Systems, Man, and Cybernetics, Part A: Systems and Humans
Shoptalk: toward independent shopping by people with visual impairments
Proceedings of the 10th international ACM SIGACCESS conference on Computers and accessibility
IROS'09 Proceedings of the 2009 IEEE/RSJ international conference on Intelligent robots and systems
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Research on spatial cognition and navigation of the visually impaired suggests that vision may be a primary sensory modality that enables humans to align the egocentric (self to object) and allocentric (object to object) frames of reference in space. In the absence of vision, the frames align best in the haptic space. In the locomotor space, as the haptic space translates with the body, lack of vision causes the frames to misalign, which negatively affects action reliability. In this paper, we argue that robots can function as interfaces to the haptic and locomotor spaces in supermarkets. In the locomotor space, the robot eliminates the necessity of frame alignment and, in or near the haptic space, it cues the shopper to the salient features of the environment sufficient for product retrieval. We present a trichotomous ontology of spaces in a supermarket induced by the presence of a robotic shopping assistant and analyze the results of robot-assisted shopping experiments with ten visually impaired participants conducted in a real supermarket.