Personal guidance system for the visually impaired

Loomis, Jack M.; Golledge, Reginald G.; Klatzky, Roberta L.; Speigle, Jon M.; Tietz, Jerome D.

doi:10.1145/191028.191051

Cited by 122 publications

(65 citation statements)

References 6 publications

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“…The navigator described the distance to the column C8 from the corner [D2,S 8,9,19 ]. The navigator described the acoustics A3 at the corner [D5, S 12,13,18,19 ]. The navigator described a rubber mat SF3 on the sidewalk [SG4, S 12,14,18 ].…”

Section: Finding a Landmarkmentioning

confidence: 99%

“…According to the functional model of a general navigation system for the blind [18], the navigator in such tele-assistance navigation service fully covers components providing a description of the environment (typically some kind of geographic information system), route planning, auditory display and speech input. The only component that cannot be covered independently by the navigator is the component responsible for determining the traveler's position and orientation.…”

Section: Introductionmentioning

confidence: 99%

“…Based on [18,17], we identified the following five activities (three for navigator and two for traveler) that we wanted to observe in our experiment: The navigator describes the environment, plans the route (gives navigation instructions), and determines the blind traveler's position [18]. The traveler travels to a remote destination (executes navigation instructions), and senses the environment (identifies landmarks) [17].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Navigation Problems in Blind-to-Blind Pedestrians Tele-assistance Navigation

Balata

Mikovec

Maly

2015

Human-Computer Interaction – INTERACT 2015

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Abstract. We raise a question whether it is possible to build a large-scale navigation system for blind pedestrians where a blind person navigates another blind person remotely by mobile phone. We have conducted an experiment, in which we observed blind people navigating each other in a city center in 19 sessions. We focused on problems in the navigator's attempts to direct the traveler to the destination. We observed 96 problems in total, classified them on the basis of the type of navigator or traveler activity and according to the location in which the problem occurred. Most of the problems occurred during the activities performed by the navigator. We extracted a set of guidelines based on analysis of navigation problems and successful navigation strategies. We have partially mapped the problem of tele-assistance navigation to POMDP based dialogue system.

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Section: Finding a Landmarkmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Navigation Problems in Blind-to-Blind Pedestrians Tele-assistance Navigation

Balata

Mikovec

Maly

2015

Human-Computer Interaction – INTERACT 2015

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“…Golledge et al (1991) reported progress towards the development of a GIS database and analytical tools in a personal guidance system for blind travellers. Loomis et al (1994) proposed the design for a navigation system for the visually impaired and described the progress made towards a portable, self-contained system that will allow visually impaired individuals to travel through familiar and unfamiliar environment without the assistance of guides. The proposed system has three components: a GPS receiver, a GIS with database and analysis tools along with a user interface.…”

Section: Global Positioning System-based Navigation Systemsmentioning

confidence: 99%

A GPS-based real-time avalanche path warning and navigation system

Dewali

Joshi

Ganju

et al. 2013

Geomatics, Natural Hazards and Risk

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Frequent avalanche activity and poor route visibility due to bad weather make snow bound mountainous regions quite unsafe for travel during the winter months. Hence, there is a need for an accurate navigation device that can help in the safe movement of mountain travellers in avalanche prone areas. This paper presents the design and implementation of a portable GPS-based warning and navigation system, capable of providing safe navigation to mountain travellers in avalanche-prone regions. The system uses a hand-held GPS with a positional accuracy of 2-5 m. A customized application has been developed for the visualization of maps, navigation, positioning, tracking and issuing avalanche path warning. On the basis of registered avalanche path data, this application updates the traveller at predefined time intervals on whether the current position of the traveller is inside or outside an avalanche path. When the traveller enters an avalanche prone area, a warning in the form of text and voice messages is generated by the device. For the testing and accuracy analysis of this application, a part of the Manali-Dhundi highway was designated as the study area. In numerous track tests, the system has demonstrated a high level of accuracy and a repetition in locating registered avalanche sites in open slopes/bare lands but accuracy deteriorated in narrow valley/forested areas. An analysis of the trial results shows that the system can help travellers in snowbound mountain regions as a warning and navigation tool, using accurately registered avalanche sites and an appropriate buffer size around these sites.

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“…Loomis and his colleagues have developed an application that makes it possible for blind users to navigate a university campus by tracking their position with differential GPS and orientation with a magnetometer to present spatialized sonic location cues [18]. Petrie et al have field-tested a GPS-based navigation aid for blind users that uses a speech synthesizer to describe city routes [23].…”

Section: Related Workmentioning

confidence: 99%

A touring machine: Prototyping 3D mobile augmented reality systems for exploring the urban environment

Feiner

MacIntyre

Höllerer

et al. 1997

Personal Technologies

506

170

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We describe a prototype system that combines together the overlaid 3D graphics of augmented reality with the untethered freedom of mobile computing. The goal is to explore how these two technologies might together make possible wearable computer systems that can support users in their everyday interactions with the world. We introduce an application that presents information about our university's campus, using a head-tracked, see-through, headworn, 3D display, and an untracked, opaque, handheld, 2D display with stylus and trackpad. We provide an illustrated explanation of how our prototype is used, and describe our rationale behind designing its software infrastructure and selecting the hardware on which it runs.

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Personal guidance system for the visually impaired

Cited by 122 publications

References 6 publications

Navigation Problems in Blind-to-Blind Pedestrians Tele-assistance Navigation

Navigation Problems in Blind-to-Blind Pedestrians Tele-assistance Navigation

A GPS-based real-time avalanche path warning and navigation system

A touring machine: Prototyping 3D mobile augmented reality systems for exploring the urban environment

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