A wearable system for mobility improvement of visually impaired people

Cardin, Sylvain; Thalmann, Daniel; Vexo, Frédéric

doi:10.1007/s00371-006-0032-4

Cited by 142 publications

(61 citation statements)

References 12 publications

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“…Thus we located the vibe boards on the left, right and center of the person's waist to indicate the direction in which an obstacle was detected. Unlike Cardin et al [3], who detect only the closest obstacle, we are able to detect the closest obstacles in the left, right and center region of the Kinect's "field of view". The signal processing software and the control of the vibe boards is implemented with C#/.NET and uses a managed wrapper of the OpenNI framework 2 .…”

Section: System Descriptionmentioning

confidence: 80%

NAVI – A Proof-of-Concept of a Mobile Navigational Aid for Visually Impaired Based on the Microsoft Kinect

Zöllner

Huber

Jetter

et al. 2011

Human-Computer Interaction – INTERACT 2011

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Abstract. We present a proof-of-concept of a mobile navigational aid that uses the Microsoft Kinect and optical marker tracking to help visually impaired people find their way inside buildings. The system is the result of a student project and is entirely based on low-cost hard-and software. It provides continuous vibrotactile feedback on the person's waist, to give an impression of the environment and to warn about obstacles. Furthermore, optical markers can be used to tag points of interest within the building to enable synthesized voice instructions for point-to-point navigation.

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Section: System Descriptionmentioning

confidence: 80%

NAVI – A Proof-of-Concept of a Mobile Navigational Aid for Visually Impaired Based on the Microsoft Kinect

Zöllner

Huber

Jetter

et al. 2011

Human-Computer Interaction – INTERACT 2011

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“…We build on these ideas by investigating in greater detail how sounds from wearables can be used to support active play and independent movement. Others have used wearables for vibration (e.g., [7,9,25,36]) but we focus on sound for a first investigation of this area.…”

Section: Sound From Wearablesmentioning

confidence: 99%

Audible Beacons and Wearables in Schools

Freeman

Wilson

Brewster

et al. 2017

Proceedings of the 2017 CHI Conference on Human Factors in Computing Systems

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Young children with visual impairments tend to engage less with their surroundings, limiting the benefits from activities at school. We investigated novel ways of using sound from a bracelet, such as speech or familiar noises, to tell children about nearby people, places and activities, to encourage them to engage more during play and help them move independently. We present a series of studies, the first two involving visual impairment educators, that give insight into challenges faced by visually impaired children at school and how sound might help them. We then present a focus group with visually impaired children that gives further insight into the effective use of sound. Our findings reveal novel ways of combining sounds from wearables with sounds from the environment, motivating audible beacons, devices for audio output and proximity estimation. We present scenarios, findings and a design space that show the novel ways such devices could be used alongside wearables to help visually impaired children at school.

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“…Therefore we have mapped its behavior on a vibro-tactile belt used in our previous researches [1,2]. We have embedded six wind sensors in order to measure the speed and orientation of the relative wind in the longitudinal plane.…”

Section: 2mentioning

confidence: 99%

“…• Haptic System: Vibrating actuators placed on a belt [1] will unconsciously inform us of the resistance of the wind. The location of the active vibrator on the body will give us of the direction of the wind while the strength of the vibration will be proportioned to the strength of the wind.…”

Section: User Interfacementioning

confidence: 99%

Immersive flight for surveillance applications

Righetti

Cardin

Thalmann

et al. 2007

2007 IEEE Symposium on 3D User Interfaces

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In this paper , we present a VR-based first-person view paradigm applied to a tele-surveillance application. Using an Unmanned Air Vehicle (UAV), we have developed an intuitive tangible interface between the pilot and his airship (blimp). The idea is to make transparent the manipulation of an embedded camera by controlling it instinctively with the head's movement so that the user is available for other tasks such as piloting the blimp. IN other words, the user becomes part of the interface. Using the same paradigm for sensing real-time acquired sensor data, a vibro-tactile belt worn by the user will indicate the resistance offered by the wind and thus will increase the feeling of telepresence. The results of our experience show that our system is reliable and enhances the situational awareness of the pilot.CR Categories: I.3.7 Three-Dimensional Graphics and RealismVirtual Reality Keywords: Telepresence, tele-operation, Head-Mounted Display, surveillance, haptic interface. INTRODUCTIONAerial surveillance is a fast-growing topic in the commercial and research field. Indeed, many "security sensitive" events such as olympic games are now fully monitored by drones, helicopters or blimps. Aerial surveillance offers the best point of view to ensure maximum visibility while giving an outline of the general situation. Other possible applications include search and rescue operations, environmental surveillance and modeling and traffic monitoring. Furthermore, compared to airplanes, blimps are able to hover in a stationary position, which is a primordial capability for many monitoring applications. They produce very low noise, turbulences and internal vibrations, generate low operational costs and have a long endurance. In addition, blimps are the safest UAVs: even if the blimp is perforated, it doesn't represent a potential danger for the surrounding people. Thus, blimps seem to be the perfect platform for aerial observation. In many cases, monitoring missions require the blimp to carry at least a pilot and a copilot. Hence, it has a substantial incidence on the fixed and operational costs. For these reasons, we have opted for an unmanned airship, entirely controlled by only one person on the ground. In this paper, blimps are considered as a natural extension of our selves. They let us wander and observe in a first-person view.* e-mail: Xavier.Righetti@epfl.ch † e-mail: Sylvain.Cardin@epfl.ch ‡ e-mail: Daniel.Thalmann@epfl.ch § e-mail: Frederic.Vexo@epfl.ch Moreover, this increasing amount of input and output data passing from the blimp to the user urges us to elaborate new custom interfaces of communication so that no information may be neglected or misunderstood. This is especially true in our case where we often deal with delicate operations such as the piloting of the blimp without direct visual contact.Next chapter will review previous works published in this field of research. Our system will be tackled in Section 3 by describing the interaction paradigms. PREVIOUS WORKSIn [3], Alberto Elfes et al. categori...

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A wearable system for mobility improvement of visually impaired people

Cited by 142 publications

References 12 publications

NAVI – A Proof-of-Concept of a Mobile Navigational Aid for Visually Impaired Based on the Microsoft Kinect

NAVI – A Proof-of-Concept of a Mobile Navigational Aid for Visually Impaired Based on the Microsoft Kinect

Audible Beacons and Wearables in Schools

Immersive flight for surveillance applications

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