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3-D Space Visualization System Using Ultrasonic Sensors as an Assistive Device for the Blind

This study proposes a new assistive device for the blind that uses more than one-dimensional data to draw objects. The study aims to convert three-dimensional (3-D) spatial information into sound information using 6-axis and ultrasonic sensors, and to draw a 3-D depiction of the space ahead for the...

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Detalles Bibliográficos
Formato: Online Artículo Texto
Lenguaje:English
Publicado: IEEE 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7098878/
https://www.ncbi.nlm.nih.gov/pubmed/32226661
http://dx.doi.org/10.1109/JTEHM.2020.2978842
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description This study proposes a new assistive device for the blind that uses more than one-dimensional data to draw objects. The study aims to convert three-dimensional (3-D) spatial information into sound information using 6-axis and ultrasonic sensors, and to draw a 3-D depiction of the space ahead for the user. Fourteen participants were involved in testing, wherein 4 were visually impaired. Moreover, the male to female ratio was 7:3, with the average age of participants at 28.8 years. An initial sound recognition experiment was designed to assess the device’s accuracy through participant use. Recognition rates were 70% for normal participants and 88% for the blind participants. Additional experiments expanded the environmental conditions by requiring participants to discern the distances of 10 objects, positioned at both high and low locations. Two different scenarios were employed: stationary and walking scenarios. The stationary distance measurement participants scored an average of 96 points, while the walking participants averaged 81 points. Under the given conditions, this study found that its assistive device for the visually impaired can draw a 3-D space with 88.5% accuracy. This probability promises a basic level of utility that can assist those with visual impairment in controlled environments, such as hospitals and homes.
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spelling pubmed-70988782020-03-28 3-D Space Visualization System Using Ultrasonic Sensors as an Assistive Device for the Blind IEEE J Transl Eng Health Med Article This study proposes a new assistive device for the blind that uses more than one-dimensional data to draw objects. The study aims to convert three-dimensional (3-D) spatial information into sound information using 6-axis and ultrasonic sensors, and to draw a 3-D depiction of the space ahead for the user. Fourteen participants were involved in testing, wherein 4 were visually impaired. Moreover, the male to female ratio was 7:3, with the average age of participants at 28.8 years. An initial sound recognition experiment was designed to assess the device’s accuracy through participant use. Recognition rates were 70% for normal participants and 88% for the blind participants. Additional experiments expanded the environmental conditions by requiring participants to discern the distances of 10 objects, positioned at both high and low locations. Two different scenarios were employed: stationary and walking scenarios. The stationary distance measurement participants scored an average of 96 points, while the walking participants averaged 81 points. Under the given conditions, this study found that its assistive device for the visually impaired can draw a 3-D space with 88.5% accuracy. This probability promises a basic level of utility that can assist those with visual impairment in controlled environments, such as hospitals and homes. IEEE 2020-03-12 /pmc/articles/PMC7098878/ /pubmed/32226661 http://dx.doi.org/10.1109/JTEHM.2020.2978842 Text en https://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/
spellingShingle Article
3-D Space Visualization System Using Ultrasonic Sensors as an Assistive Device for the Blind
title 3-D Space Visualization System Using Ultrasonic Sensors as an Assistive Device for the Blind
title_full 3-D Space Visualization System Using Ultrasonic Sensors as an Assistive Device for the Blind
title_fullStr 3-D Space Visualization System Using Ultrasonic Sensors as an Assistive Device for the Blind
title_full_unstemmed 3-D Space Visualization System Using Ultrasonic Sensors as an Assistive Device for the Blind
title_short 3-D Space Visualization System Using Ultrasonic Sensors as an Assistive Device for the Blind
title_sort 3-d space visualization system using ultrasonic sensors as an assistive device for the blind
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7098878/
https://www.ncbi.nlm.nih.gov/pubmed/32226661
http://dx.doi.org/10.1109/JTEHM.2020.2978842
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