Haptic based walking stick for visually impaired people

Menikdiwela, M. P.; Dharmasena, K. M. I. S.; Abeykoon, A. M. Harsha S.

doi:10.1109/ccube.2013.6718549

Cited by 27 publications

(7 citation statements)

References 8 publications

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“…Suggested improvements included increased sensitivity and speed, to detect objects at leg height and to distinguish between different obstacle types. Menikdiwela, Dharmasena, and Abeykoon [49] evaluated a sonar-based device with vibrotactile feedback using three vibrators, with one vibrator for each sensor. Their experiment involved 7 blind schoolchildren that involved five parts addressing device interaction, learnability, walking between obstacles, obstacle height, and distance estimate.…”

Section: Related Workmentioning

confidence: 99%

Are electronic white canes better than traditional canes? A comparative study with blind and blindfolded participants

Santos

Médola

Cinelli

et al. 2020

Univ Access Inf Soc

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Visually impaired individuals often rely on assistive technologies such as white canes for independent navigation. Many electronic enhancements to the traditional white cane have been proposed. However, only a few of these proof-of-concept technologies have been tested with authentic users, as most studies rely on blindfolded non-visually impaired participants or no testing with participants at all. Experiments involving blind users are usually not contrasted with the traditional white cane. This study set out to compare an ultrasound-based electronic cane with a traditional white cane. Moreover, we also compared the performance of a group of visually impaired participants (N = 10) with a group of blindfolded participants without visual impairments (N = 31). The results show that walking speed with the electronic cane is significantly slower compared to the traditional white cane. Moreover, the results show that the performance of the participants without visual impairments is significantly slower than for the visually impaired participants. No significant differences in obstacle detection rates were observed across participant groups and device types for obstacles on the ground, while 79% of the hanging obstacles were detected by the electronic cane. The results of this study thus suggest that electronic canes present only one advantage over the traditional cane, namely in its ability to detect hanging obstacles, at least without prolonged practice. Next, blindfolded participants are insufficient substitutes for blind participants who are expert cane users. The implication of this study is that research into digital white cane enhancements should include blind participants. These participants should be followed over time in longitudinal experiments to document if practice will lead to improvements that surpass the performance achieved with traditional canes.

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Section: Related Workmentioning

confidence: 99%

Are electronic white canes better than traditional canes? A comparative study with blind and blindfolded participants

Santos

Médola

Cinelli

et al. 2020

Univ Access Inf Soc

View full text Add to dashboard Cite

show abstract

“…Other researchers have proposed web-based electronic guidance [3]. Walking sticks relying on haptics have also been designed and tested by researchers [4]. Most of the proposed systems are either too costly to be practically viable or are extremely prone to malfunction or error due to comparatively lower accuracy or actuation.…”

Section: Literature Surveymentioning

confidence: 99%

Smart Walking System for the Blind

Bharadwaj¹,

Pal²,

Patra³

2019

International Journal of Innovative Research in Electrical, Ele

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There has been a great deal of research in the area of motional aids for the visually challenged and impaired. Smart systems have been proposed for ease of use and greater accuracy. The current paper proposes a smart system to aid visually challenged people in traversing obstacle-filled paths. The solution uses an Arduino board paired with ultrasonic sensor for implementation of the system, which is augmented by the addition of a piezoelectric speaker and variable intensity vibration motor.

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“…In the work of Hoang [2], Kinect could detect and warn the person of obstacles to avoid them. In the study of Menikdiwela [3], a white cane equipped with super-sonic sensors could detect obstacles on the street. It helps visually impaired people to avoid obstacles.…”

Section: Related Studiesmentioning

confidence: 99%

Estimating Dangerous Areas from Preceding Pedestrian Considering Occlusion Problem

2016

IJCCIE

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Abstract-This paper proposes a method to estimate dangerous areas for visually impaired to walk safely.In stations and shopping malls, it is difficult to detect dangerous areas because surrounding people shield them, what is called occlusion problem. The method estimates dangerous areas from walking posture of preceding pedestrians. From the result of experiment, the method discriminates between inside and outside dangerous areas from the head and body angles of preceding pedestrians. In addition, it is considered to be possible to distinguish 4 dangerous areas from the change of these angles.

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Haptic based walking stick for visually impaired people

Cited by 27 publications

References 8 publications

Are electronic white canes better than traditional canes? A comparative study with blind and blindfolded participants

Are electronic white canes better than traditional canes? A comparative study with blind and blindfolded participants

Smart Walking System for the Blind

Estimating Dangerous Areas from Preceding Pedestrian Considering Occlusion Problem

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