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Virtual Reality Applications in the Context of Low-Vision Rehabilitation
Published in Christopher M. Hayre, Dave J. Muller, Marcia J. Scherer, Virtual Reality in Health and Rehabilitation, 2020
Marie-Céline Lorenzini, Walter Wittich
The role of training in orientation and mobility rehabilitation is to prepare people with visual impairment in a safe training environment. There has been abundant literature on training orientation and mobility skills in functionally blind individuals who have to rely on sensory substitution cues. It has been reported that blind people could successfully explore a new virtual acoustic and/or haptic space (Connors et al., 2014) and that training in a virtual acoustic environment could increase orientation and mobility skills compared to training in a real environment (Seki and Sato, 2011). In comparison, little work has been done to explore the training of visual skills in people with low vision in virtual reality. Recently, a study (Bowman and Liu, 2017) concluded that virtual reality-based orientation and mobility training could be as efficient as real street training for optimizing street safety in individuals with low vision. Participants were able to improve their street crossing timing in real streets after learning orientation and mobility skills in virtual streets, demonstrating a positive transfer of their virtual reality training to real streets.
Communication and mobility issues of visually impaired pedestrians with connected autonomous vehicles
Published in Transportation Planning and Technology, 2023
Sina Azizi Soldouz, Md Sami Hasnine, Mahadeo Sukhai, Khandker Nurul Habib
In terms of sight loss experiences, the SUVI was designed to ask about the severity of sight loss based on the CNIB’s categories from mild to very severe. The participants were also questioned about the age when they first experienced visual impairment. The survey was provided in both English and French and included the CNIB’s definitions and explanation of sight loss experiences. The results show that around 55.8% of respondents have been blind or partially blind their entire life, followed by participants who experienced visual impairments between the ages of 18 and 65 (25.8%) and those who experienced impairments before the age of 18 (16.4%). Only 1.9% of the respondents experienced visual impairments after 65. Also worth mentioning is that 84.6% of participants received Orientation & Mobility (O&M) training, which provides hands-on training on various navigational devices for visually impaired individuals.
Tools and Technologies for Blind and Visually Impaired Navigation Support: A Review
Published in IETE Technical Review, 2022
Bineeth Kuriakose, Raju Shrestha, Frode Eika Sandnes
People who are visually impaired often use Orientation and Mobility (O&M) skills that help travelling unfamiliar environments. The orientation and mobility skills acquired by the visually impaired users support to develop competencies needed for safe and efficient navigation.7 Orientation refers to the capability to know the current location and the destination which the person intends to travel. It includes information such as whether the person wants to move from one room to another or wants to go to a shopping mall. Mobility refers to the capability of a person for safe and effective navigation from one place to another. It includes travelling to a station without falling, crossing streets, and safe use of public transportation facilities [10–12].
Assistive device for orientation and mobility of the visually impaired based on millimeter wave radar technology—Clinical investigation results
Published in Cogent Engineering, 2018
Tero Kiuru, Mikko Metso, Mikko Utriainen, Kirsimarja Metsävainio, Hanna-Mari Jauhonen, Riitta Rajala, Reeta Savenius, Mirja Ström, Tiia-Nina Jylhä, Reijo Juntunen, Juha Sylberg
The white cane is by far the most widely used assistive device for visually impaired orientation and mobility today. It is efficient in finding ground level obstacles close to the user (<1 m), but does not help in detecting obstacles that are not standing on the ground (such as an open window), or obstacles farther away. Not being able to detect head level obstacles increases the risk of head level accidents. For example, a study including over 300 legally blind or blind participants (Manduchi & Kurniawan, 2011) reported more than 50 percent suffering a head level accident at least once a year or more often. Furthermore, they reported 23 percent of these incidents having medical consequences.